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Revision 1.11 by pcg, Thu Mar 17 23:59:37 2005 UTC vs.
Revision 1.25 by pcg, Sat Jul 18 05:59:16 2009 UTC

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129.\" ======================================================================== 132.\" ========================================================================
130.\" 133.\"
131.IX Title "GVPE.CONF 5" 134.IX Title "GVPE.CONF 5"
132.TH GVPE.CONF 5 "2005-03-17" "1.8" "GNU Virtual Private Ethernet" 135.TH GVPE.CONF 5 "2009-06-01" "2.22" "GNU Virtual Private Ethernet"
136.\" For nroff, turn off justification. Always turn off hyphenation; it makes
137.\" way too many mistakes in technical documents.
138.if n .ad l
139.nh
133.SH "NAME" 140.SH "NAME"
134gvpe.conf \- configuration file for the GNU VPE daemon 141gvpe.conf \- configuration file for the GNU VPE daemon
135.SH "SYNOPSIS" 142.SH "SYNOPSIS"
136.IX Header "SYNOPSIS" 143.IX Header "SYNOPSIS"
137.Vb 3 144.Vb 4
145\& # global options for all nodes
138\& udp-port = 407 146\& udp\-port = 407
139\& mtu = 1492 147\& mtu = 1492
140\& ifname = vpn0 148\& ifname = vpn0
141.Ve 149\&
142.PP 150\& # first node is named branch1 and is at 1.2.3.4
143.Vb 2
144\& node = branch1 151\& node = branch1
145\& hostname = 1.2.3.4 152\& hostname = 1.2.3.4
146.Ve 153\&
147.PP 154\& # second node uses dns to resolve the address
148.Vb 3
149\& node = branch2 155\& node = branch2
150\& hostname = www.example.net 156\& hostname = www.example.net
151\& udp-port = 500 # this host uses a different udp-port 157\& udp\-port = 500 # this host uses a different udp\-port
152.Ve 158\&
153.PP 159\& # third node has no fixed ip address
154.Vb 2
155\& node = branch3 160\& node = branch3
156\& connect = ondemand 161\& connect = ondemand
157.Ve 162.Ve
158.SH "DESCRIPTION" 163.SH "DESCRIPTION"
159.IX Header "DESCRIPTION" 164.IX Header "DESCRIPTION"
160The gvpe config file consists of a series of lines that contain \f(CW\*(C`variable 165The gvpe config file consists of a series of lines that contain \f(CW\*(C`variable
161= value\*(C'\fR pairs. Empty lines are ignored. Comments start with a \f(CW\*(C`#\*(C'\fR and 166= value\*(C'\fR pairs. Empty lines are ignored. Comments start with a \f(CW\*(C`#\*(C'\fR and
162extend to the end of the line. They can be used on their own lines, or 167extend to the end of the line. They can be used on their own lines, or
163after any directives. Spaces are allowed before or after the \f(CW\*(C`=\*(C'\fR sign or 168after any directives. Whitespace is allowed around the \f(CW\*(C`=\*(C'\fR sign or after
164after values, but not within the variable names or values themselves. 169values, but not within the variable names or values themselves.
165.PP 170.PP
166The only exception to the above is the \*(L"on\*(R" directive that can prefix any 171The only exception to the above is the \*(L"on\*(R" directive that can prefix any
167\&\f(CW\*(C`name = value\*(C'\fR setting and will only \*(L"execute\*(R" it on the named node, or 172\&\f(CW\*(C`name = value\*(C'\fR setting and will only \*(L"execute\*(R" it on the named node, or
168(if the nodename starts with \*(L"!\*(R") on all nodes except the named one. 173(if the nodename starts with \*(L"!\*(R") on all nodes except the named one.
169.PP 174.PP
175For example, set the \s-1MTU\s0 to \f(CW1450\fR everywhere, loglevel to \f(CW\*(C`noise\*(C'\fR on
176branch1, and connect to \f(CW\*(C`ondemand\*(C'\fR everywhere but on branch2:
177.PP
170.Vb 3 178.Vb 3
171\& name = value 179\& mtu = 1450
172\& on branch1 loglevel = noise 180\& on branch1 loglevel = noise
173\& on !branch2 connect = ondemand 181\& on !branch2 connect = ondemand
174.Ve 182.Ve
175.PP 183.PP
176All settings are executed \*(L"in order\*(R", that is, later settings of the same 184All settings are applied \*(L"in order\*(R", that is, later settings of the same
177variable overwrite earlier ones. 185variable overwrite earlier ones.
178.SH "ANATOMY OF A CONFIG FILE" 186.SH "ANATOMY OF A CONFIG FILE"
179.IX Header "ANATOMY OF A CONFIG FILE" 187.IX Header "ANATOMY OF A CONFIG FILE"
180Usually, a config file starts with global settings (like the udp port to 188Usually, a config file starts with a few global settings (like the \s-1UDP\s0
181listen on), followed by node-specific sections that begin with a \f(CW\*(C`node = 189port to listen on), followed by node-specific sections that begin with a
182nickname\*(C'\fR line. 190\&\f(CW\*(C`node = nickname\*(C'\fR line.
183.PP 191.PP
184Every node that is part of the network must have a section that starts 192Every node that is part of the network must have a section that starts
185with \f(CW\*(C`node = nickname\*(C'\fR. The number and order of the nodes is important 193with \f(CW\*(C`node = nickname\*(C'\fR. The number and order of the nodes is important
186and must be the same on all hosts. It is not uncommon for node sections to 194and must be the same on all nodes. It is not uncommon for node sections to
187be completely empty \- if the default values are right. 195be completely empty \- if the default values are right.
188.PP 196.PP
189Node-specific settings can be used at any time. If used before the first 197Node-specific settings can be used at any time. If used before the first
190node section they will set the default values for all following nodes. 198node section they will set the default values for all following nodes.
191.SH "CONFIG VARIABLES" 199.SH "CONFIG VARIABLES"
… …
196is, they are in some sense node-specific (config files can set different 204is, they are in some sense node-specific (config files can set different
197values on different nodes using \f(CW\*(C`on\*(C'\fR), but will affect the behaviour of 205values on different nodes using \f(CW\*(C`on\*(C'\fR), but will affect the behaviour of
198the gvpe daemon and all connections it creates. 206the gvpe daemon and all connections it creates.
199.IP "dns-forw-host = hostname/ip" 4 207.IP "dns-forw-host = hostname/ip" 4
200.IX Item "dns-forw-host = hostname/ip" 208.IX Item "dns-forw-host = hostname/ip"
201The dns server to forward dns requests to for the \s-1DNS\s0 tunnel protocol 209The \s-1DNS\s0 server to forward \s-1DNS\s0 requests to for the \s-1DNS\s0 tunnel protocol
202(default: \f(CW127.0.0.1\fR, changing it is highly recommended). 210(default: \f(CW127.0.0.1\fR, changing it is highly recommended).
203.IP "dns-forw-port = port-number" 4 211.IP "dns-forw-port = port-number" 4
204.IX Item "dns-forw-port = port-number" 212.IX Item "dns-forw-port = port-number"
205The port where the \f(CW\*(C`dns\-forw\-host\*(C'\fR is to be contacted (default: \f(CW53\fR, 213The port where the \f(CW\*(C`dns\-forw\-host\*(C'\fR is to be contacted (default: \f(CW53\fR,
206which is fine in most cases). 214which is fine in most cases).
215.IP "dns-max-outstanding = integer-number-of-requests" 4
216.IX Item "dns-max-outstanding = integer-number-of-requests"
217The maximum number of outstanding \s-1DNS\s0 transport requests
218(default: \f(CW100\fR). \s-1GVPE\s0 will never issue more requests then the given
219limit without receiving replies. In heavily overloaded situations it might
220help to set this to a low number (e.g. \f(CW3\fR or even \f(CW1\fR) to limit the
221number of parallel requests.
222.Sp
223The default should be working \s-1OK\s0 for most links.
224.IP "dns-overlap-factor = float" 4
225.IX Item "dns-overlap-factor = float"
226The \s-1DNS\s0 transport uses the minimum request latency (\fBmin_latency\fR) seen
227during a connection as it's timing base. This factor (default: \f(CW0.5\fR,
228must be > 0) is multiplied by \fBmin_latency\fR to get the maximum sending
229rate (= minimum send interval), i.e. a factor of \f(CW1\fR means that a new
230request might be generated every \fBmin_latency\fR seconds, which means on
231average there should only ever be one outstanding request. A factor of
232\&\f(CW0.5\fR means that \s-1GVPE\s0 will send requests twice as often as the minimum
233latency measured.
234.Sp
235For congested or picky \s-1DNS\s0 forwarders you could use a value nearer to or
236exceeding \f(CW1\fR.
237.Sp
238The default should be working \s-1OK\s0 for most links.
239.IP "dns-send-interval = send-interval-in-seconds" 4
240.IX Item "dns-send-interval = send-interval-in-seconds"
241The minimum send interval (= maximum rate) that the \s-1DNS\s0 transport will
242use to send new \s-1DNS\s0 requests. \s-1GVPE\s0 will not exceed this rate even when
243the latency is very low. The default is \f(CW0.01\fR, which means \s-1GVPE\s0 will
244not send more than 100 \s-1DNS\s0 requests per connection per second. For
245high-bandwidth links you could go lower, e.g. to \f(CW0.001\fR or so. For
246congested or rate-limited links, you might want to go higher, say \f(CW0.1\fR,
247\&\f(CW0.2\fR or even higher.
248.Sp
249The default should be working \s-1OK\s0 for most links.
250.IP "dns-timeout-factor = float" 4
251.IX Item "dns-timeout-factor = float"
252Factor to multiply the \f(CW\*(C`min_latency\*(C'\fR (see \f(CW\*(C`dns\-overlap\-factor\*(C'\fR) by to
253get request timeouts. The default of \f(CW8\fR means that the \s-1DNS\s0 transport
254will resend the request when no reply has been received for longer than
255eight times the minimum (= expected) latency, assuming the request or
256reply has been lost.
257.Sp
258For congested links a higher value might be necessary (e.g. \f(CW30\fR). If
259the link is very stable lower values (e.g. \f(CW2\fR) might work
260nicely. Values near or below \f(CW1\fR makes no sense whatsoever.
261.Sp
262The default should be working \s-1OK\s0 for most links but will result in low
263throughput if packet loss is high.
207.IP "if-up = relative-or-absolute-path" 4 264.IP "if-up = relative-or-absolute-path" 4
208.IX Item "if-up = relative-or-absolute-path" 265.IX Item "if-up = relative-or-absolute-path"
209Sets the path of a script that should be called immediately after the 266Sets the path of a script that should be called immediately after the
210network interface is initialized (but not neccessarily up). The following 267network interface is initialized (but not necessarily up). The following
211environment variables are passed to it (the values are just examples): 268environment variables are passed to it (the values are just examples).
269.Sp
270Variables that have the same value on all nodes:
212.RS 4 271.RS 4
213.IP "CONFBASE=/etc/gvpe" 4 272.IP "CONFBASE=/etc/gvpe" 4
214.IX Item "CONFBASE=/etc/gvpe" 273.IX Item "CONFBASE=/etc/gvpe"
215The configuration base directory. 274The configuration base directory.
216.IP "IFNAME=vpn0" 4 275.IP "IFNAME=vpn0" 4
217.IX Item "IFNAME=vpn0" 276.IX Item "IFNAME=vpn0"
218The interface to initialize. 277The network interface to initialize.
219.IP "MTU=1436" 4
220.IX Item "MTU=1436"
221The \s-1MTU\s0 to set the interface to. You can use lower values (if done
222consistently on all hosts), but this is usually ineffective.
223.IP "MAC=fe:fd:80:00:00:01" 4
224.IX Item "MAC=fe:fd:80:00:00:01"
225The \s-1MAC\s0 address to set the interface to. The script *must* set the
226interface \s-1MAC\s0 to this value. You will most likely use one of these:
227.Sp
228.Vb 2
229\& ip link set $IFNAME address $MAC mtu $MTU up # GNU/Linux
230\& ifconfig $IFNAME ether $MAC mtu $MTU up # FreeBSD
231.Ve
232.Sp
233Please see the \f(CW\*(C`gvpe.osdep(5)\*(C'\fR manpage for platform-specific information.
234.IP "IFTYPE=native # or tincd" 4 278.IP "IFTYPE=native # or tincd" 4
235.IX Item "IFTYPE=native # or tincd" 279.IX Item "IFTYPE=native # or tincd"
236.PD 0 280.PD 0
237.IP "IFSUBTYPE=linux # or freebsd, darwin etc.." 4 281.IP "IFSUBTYPE=linux # or freebsd, darwin etc.." 4
238.IX Item "IFSUBTYPE=linux # or freebsd, darwin etc.." 282.IX Item "IFSUBTYPE=linux # or freebsd, darwin etc.."
239.PD 283.PD
240The interface type (\f(CW\*(C`native\*(C'\fR or \f(CW\*(C`tincd\*(C'\fR) and the subtype (usually the os 284The interface type (\f(CW\*(C`native\*(C'\fR or \f(CW\*(C`tincd\*(C'\fR) and the subtype (usually the
241name in lowercase) that this gvpe was configured for. Can be used to select 285\&\s-1OS\s0 name in lowercase) that this \s-1GVPE\s0 was configured for. Can be used to
242the correct syntax to use for network-related commands. 286select the correct syntax to use for network-related commands.
287.IP "MTU=1436" 4
288.IX Item "MTU=1436"
289The \s-1MTU\s0 to set the interface to. You can use lower values (if done
290consistently on all nodes), but this is usually either inefficient or
291simply ineffective.
292.IP "NODES=5" 4
293.IX Item "NODES=5"
294The number of nodes in this \s-1GVPE\s0 network.
295.RE
296.RS 4
297.Sp
298Variables that are node-specific and with values pertaining to the node
299running this \s-1GVPE:\s0
300.IP "IFUPDATA=string" 4
301.IX Item "IFUPDATA=string"
302The value of the configuration directive \f(CW\*(C`if\-up\-data\*(C'\fR.
303.IP "MAC=fe:fd:80:00:00:01" 4
304.IX Item "MAC=fe:fd:80:00:00:01"
305The \s-1MAC\s0 address the network interface has to use.
306.Sp
307Might be used to initialize interfaces on platforms where \s-1GVPE\s0 does not
308do this automatically. Please see the \f(CW\*(C`gvpe.osdep(5)\*(C'\fR man page for
309platform-specific information.
243.IP "NODENAME=branch1" 4 310.IP "NODENAME=branch1" 4
244.IX Item "NODENAME=branch1" 311.IX Item "NODENAME=branch1"
245The nickname of the current node, as passed to the gvpe daemon. 312The nickname of the node.
246.IP "NODEID=1" 4 313.IP "NODEID=1" 4
247.IX Item "NODEID=1" 314.IX Item "NODEID=1"
248The numerical node id of the current node. The first node mentioned in the 315The numerical node \s-1ID\s0 of the node running this instance of \s-1GVPE\s0. The first
249config file gets \s-1ID\s0 1, the second \s-1ID\s0 2 and so on. 316node mentioned in the config file gets \s-1ID\s0 1, the second \s-1ID\s0 2 and so on.
250.RE 317.RE
251.RS 4 318.RS 4
252.Sp 319.Sp
320In addition, all node-specific variables (except \f(CW\*(C`NODEID\*(C'\fR) will be
321available with a postfix of \f(CW\*(C`_nodeid\*(C'\fR, which contains the value for that
322node, e.g. the \f(CW\*(C`MAC_1\*(C'\fR variable contains the \s-1MAC\s0 address of node #1, while
323the \f(CW\*(C`NODENAME_22\*(C'\fR variable contains the name of node #22.
324.Sp
253Here is a simple if-up script: 325Here is a simple if-up script:
254.Sp 326.Sp
255.Vb 5 327.Vb 5
256\& #!/bin/sh 328\& #!/bin/sh
257\& ip link set $IFNAME address $MAC mtu $MTU up 329\& ip link set $IFNAME up
258\& [ $NODENAME = branch1 ] && ip addr add 10.0.0.1 dev $IFNAME 330\& [ $NODENAME = branch1 ] && ip addr add 10.0.0.1 dev $IFNAME
259\& [ $NODENAME = branch2 ] && ip addr add 10.1.0.1 dev $IFNAME 331\& [ $NODENAME = branch2 ] && ip addr add 10.1.0.1 dev $IFNAME
260\& ip route add 10.0.0.0/8 dev $IFNAME 332\& ip route add 10.0.0.0/8 dev $IFNAME
261.Ve 333.Ve
262.Sp 334.Sp
263More complicated examples (using routing to reduce arp traffic) can be 335More complicated examples (using routing to reduce \s-1ARP\s0 traffic) can be
264found in the etc/ subdirectory of the distribution. 336found in the \fIetc/\fR subdirectory of the distribution.
265.RE 337.RE
266.IP "ifname = devname" 4 338.IP "ifname = devname" 4
267.IX Item "ifname = devname" 339.IX Item "ifname = devname"
268Sets the tun interface name to the given name. The default is OS-specific 340Sets the tun interface name to the given name. The default is OS-specific
269and most probably something like \f(CW\*(C`tun0\*(C'\fR. 341and most probably something like \f(CW\*(C`tun0\*(C'\fR.
… …
276the local node, try to set this to \f(CW\*(C`off\*(C'\fR and do an ifconfig down on the 348the local node, try to set this to \f(CW\*(C`off\*(C'\fR and do an ifconfig down on the
277device. 349device.
278.IP "ip-proto = numerical-ip-protocol" 4 350.IP "ip-proto = numerical-ip-protocol" 4
279.IX Item "ip-proto = numerical-ip-protocol" 351.IX Item "ip-proto = numerical-ip-protocol"
280Sets the protocol number to be used for the rawip protocol. This is a 352Sets the protocol number to be used for the rawip protocol. This is a
281global option because all hosts must use the same protocol, and since 353global option because all nodes must use the same protocol, and since
282there are no port numbers, you cannot easily run more than one gvpe 354there are no port numbers, you cannot easily run more than one gvpe
283instance using the same protocol, nor can you share the protocol with 355instance using the same protocol, nor can you share the protocol with
284other programs. 356other programs.
285.Sp 357.Sp
286The default is 47 (\s-1GRE\s0), which has a good chance of tunneling through 358The default is 47 (\s-1GRE\s0), which has a good chance of tunneling
287firewalls (but note that the rawip protocol is not \s-1GRE\s0 compatible). Other 359through firewalls (but note that gvpe's rawip protocol is not \s-1GRE\s0
288common choices are 50 (\s-1IPSEC\s0, \s-1ESP\s0), 51 (\s-1IPSEC\s0, \s-1AH\s0), 4 (\s-1IPIP\s0 tunnels) or 98 360compatible). Other common choices are 50 (\s-1IPSEC\s0, \s-1ESP\s0), 51 (\s-1IPSEC\s0, \s-1AH\s0), 4
289(\s-1ENCAP\s0, rfc1241) 361(\s-1IPIP\s0 tunnels) or 98 (\s-1ENCAP\s0, rfc1241)
290.IP "http-proxy-host = hostname/ip" 4 362.IP "http-proxy-host = hostname/ip" 4
291.IX Item "http-proxy-host = hostname/ip" 363.IX Item "http-proxy-host = hostname/ip"
292The \f(CW\*(C`http\-proxy\-*\*(C'\fR family of options are only available if gvpe was 364The \f(CW\*(C`http\-proxy\-*\*(C'\fR family of options are only available if gvpe was
293compiled with the \f(CW\*(C`\-\-enable\-http\-proxy\*(C'\fR option and enable tunneling of 365compiled with the \f(CW\*(C`\-\-enable\-http\-proxy\*(C'\fR option and enable tunneling of
294tcp connections through a http proxy server. 366tcp connections through a http proxy server.
… …
296\&\f(CW\*(C`http\-proxy\-host\*(C'\fR and \f(CW\*(C`http\-proxy\-port\*(C'\fR should specify the hostname and 368\&\f(CW\*(C`http\-proxy\-host\*(C'\fR and \f(CW\*(C`http\-proxy\-port\*(C'\fR should specify the hostname and
297port number of the proxy server. See \f(CW\*(C`http\-proxy\-loginpw\*(C'\fR if your proxy 369port number of the proxy server. See \f(CW\*(C`http\-proxy\-loginpw\*(C'\fR if your proxy
298requires authentication. 370requires authentication.
299.Sp 371.Sp
300Please note that gvpe will still try to resolve all hostnames in the 372Please note that gvpe will still try to resolve all hostnames in the
301configuration file, so if you are behind a proxy without access to a dns 373configuration file, so if you are behind a proxy without access to a \s-1DNS\s0
302server better use numerical \s-1IP\s0 addresses. 374server better use numerical \s-1IP\s0 addresses.
303.Sp 375.Sp
304To make best use of this option disable all protocols except tcp in your 376To make best use of this option disable all protocols except \s-1TCP\s0 in your
305config file and make sure your routers (or all other hosts) are listening 377config file and make sure your routers (or all other nodes) are listening
306on a port that the proxy allows (443, https, is a common choice). 378on a port that the proxy allows (443, https, is a common choice).
307.Sp 379.Sp
308If you have a router, connecting to it will suffice. Otherwise tcp must be 380If you have a router, connecting to it will suffice. Otherwise \s-1TCP\s0 must be
309enabled on all hosts. 381enabled on all nodes.
310.Sp 382.Sp
311Example: 383Example:
312.Sp 384.Sp
313.Vb 3 385.Vb 3
314\& http-proxy-host = proxy.example.com 386\& http\-proxy\-host = proxy.example.com
315\& http-proxy-port = 3128 # 8080 is another common choice 387\& http\-proxy\-port = 3128 # 8080 is another common choice
316\& http-proxy-auth = schmorp:grumbeere 388\& http\-proxy\-auth = schmorp:grumbeere
317.Ve 389.Ve
318.IP "http-proxy-port = proxy-tcp-port" 4 390.IP "http-proxy-port = proxy-tcp-port" 4
319.IX Item "http-proxy-port = proxy-tcp-port" 391.IX Item "http-proxy-port = proxy-tcp-port"
320The port where your proxy server listens. 392The port where your proxy server listens.
321.IP "http-proxy-auth = login:password" 4 393.IP "http-proxy-auth = login:password" 4
322.IX Item "http-proxy-auth = login:password" 394.IX Item "http-proxy-auth = login:password"
323The optional login and password used to authenticate to the proxy server, 395The optional login and password used to authenticate to the proxy server,
324seperated by a literal colon (\f(CW\*(C`:\*(C'\fR). Only basic authentication is 396separated by a literal colon (\f(CW\*(C`:\*(C'\fR). Only basic authentication is
325currently supported. 397currently supported.
326.IP "keepalive = seconds" 4 398.IP "keepalive = seconds" 4
327.IX Item "keepalive = seconds" 399.IX Item "keepalive = seconds"
328Sets the keepalive probe interval in seconds (default: \f(CW60\fR). After this 400Sets the keepalive probe interval in seconds (default: \f(CW60\fR). After this
329many seconds of inactivity the daemon will start to send keepalive probe 401many seconds of inactivity the daemon will start to send keepalive probe
330every 5 seconds until it receives a reply from the other end. If no reply 402every 3 seconds until it receives a reply from the other end. If no reply
331is received within 30 seconds, the peer is considered unreachable and the 403is received within 15 seconds, the peer is considered unreachable and the
332connection is closed. 404connection is closed.
333.IP "loglevel = noise|trace|debug|info|notice|warn|error|critical" 4 405.IP "loglevel = noise|trace|debug|info|notice|warn|error|critical" 4
334.IX Item "loglevel = noise|trace|debug|info|notice|warn|error|critical" 406.IX Item "loglevel = noise|trace|debug|info|notice|warn|error|critical"
335Set the logging level. Connection established messages are logged at level 407Set the logging level. Connection established messages are logged at level
336\&\f(CW\*(C`info\*(C'\fR, notable errors are logged with \f(CW\*(C`error\*(C'\fR. Default is \f(CW\*(C`info\*(C'\fR. 408\&\f(CW\*(C`info\*(C'\fR, notable errors are logged with \f(CW\*(C`error\*(C'\fR. Default is \f(CW\*(C`info\*(C'\fR.
337.IP "mtu = bytes" 4 409.IP "mtu = bytes" 4
338.IX Item "mtu = bytes" 410.IX Item "mtu = bytes"
339Sets the maximum \s-1MTU\s0 that should be used on outgoing packets (basically 411Sets the maximum \s-1MTU\s0 that should be used on outgoing packets (basically
340the \s-1MTU\s0 of the outgoing interface) The daemon will automatically calculate 412the \s-1MTU\s0 of the outgoing interface) The daemon will automatically calculate
341maximum overhead (e.g. udp header size, encryption blocksize...) and pass 413maximum overhead (e.g. \s-1UDP\s0 header size, encryption blocksize...) and pass
342this information to the \f(CW\*(C`if\-up\*(C'\fR script. 414this information to the \f(CW\*(C`if\-up\*(C'\fR script.
343.Sp 415.Sp
344Recommended values are 1500 (ethernet), 1492 (pppoe), 1472 (pptp). 416Recommended values are 1500 (ethernet), 1492 (pppoe), 1472 (pptp).
345.Sp 417.Sp
346This value must be the minimum of the mtu values of all hosts. 418This value must be the minimum of the \s-1MTU\s0 values of all nodes.
347.IP "node = nickname" 4 419.IP "node = nickname" 4
348.IX Item "node = nickname" 420.IX Item "node = nickname"
349Not really a config setting but introduces a node section. The nickname is 421Not really a config setting but introduces a node section. The nickname is
350used to select the right configuration section and must be passed as an 422used to select the right configuration section and must be passed as an
351argument to the gvpe daemon. 423argument to the gvpe daemon.
352.IP "node-up = relative-or-absolute-path" 4 424.IP "node-up = relative-or-absolute-path" 4
353.IX Item "node-up = relative-or-absolute-path" 425.IX Item "node-up = relative-or-absolute-path"
354Sets a command (default: no script) that should be called whenever a 426Sets a command (default: none) that should be called whenever a connection
355connection is established (even on rekeying operations). In addition 427is established (even on rekeying operations). Note that node\-up/down
428scripts will be run asynchronously, but execution is serialised, so there
429will only ever be one such script running.
430.Sp
356to the variables passed to \f(CW\*(C`if\-up\*(C'\fR scripts, the following environment 431In addition to all the variables passed to \f(CW\*(C`if\-up\*(C'\fR scripts, the following
357variables will be set: 432environment variables will be set (values are just examples):
358.RS 4 433.RS 4
359.IP "DESTNODE=branch2" 4 434.IP "DESTNODE=branch2" 4
360.IX Item "DESTNODE=branch2" 435.IX Item "DESTNODE=branch2"
361The name of the remote node. 436The name of the remote node.
362.IP "DESTID=2" 4 437.IP "DESTID=2" 4
363.IX Item "DESTID=2" 438.IX Item "DESTID=2"
364The node id of the remote node. 439The node id of the remote node.
440.IP "DESTSI=rawip/88.99.77.55:0" 4
441.IX Item "DESTSI=rawip/88.99.77.55:0"
442The \*(L"socket info\*(R" of the target node, protocol dependent but usually in
443the format protocol/ip:port.
365.IP "DESTIP=188.13.66.8" 4 444.IP "DESTIP=188.13.66.8" 4
366.IX Item "DESTIP=188.13.66.8" 445.IX Item "DESTIP=188.13.66.8"
367The numerical \s-1IP\s0 address of the remote host (gvpe accepts connections from 446The numerical \s-1IP\s0 address of the remote node (gvpe accepts connections from
368everywhere, as long as the other host can authenticate itself). 447everywhere, as long as the other node can authenticate itself).
369.IP "DESTPORT=655 # deprecated" 4 448.IP "DESTPORT=655 # deprecated" 4
370.IX Item "DESTPORT=655 # deprecated" 449.IX Item "DESTPORT=655 # deprecated"
371The \s-1UDP\s0 port used by the other side. 450The protocol port used by the other side, if applicable.
372.IP "STATE=UP" 4 451.IP "STATE=up" 4
373.IX Item "STATE=UP" 452.IX Item "STATE=up"
374Node-up scripts get called with STATE=UP, node-down scripts get called 453Node-up scripts get called with STATE=up, node-change scripts get called
375with STATE=DOWN. 454with STATE=change and node-down scripts get called with STATE=down.
376.RE 455.RE
377.RS 4 456.RS 4
378.Sp 457.Sp
379Here is a nontrivial example that uses nsupdate to update the name => ip 458Here is a nontrivial example that uses nsupdate to update the name => ip
380mapping in some dns zone: 459mapping in some \s-1DNS\s0 zone:
381.Sp 460.Sp
382.Vb 6 461.Vb 6
383\& #!/bin/sh 462\& #!/bin/sh
384\& { 463\& {
385\& echo update delete $DESTNODE.lowttl.example.net. a 464\& echo update delete $DESTNODE.lowttl.example.net. a
386\& echo update add $DESTNODE.lowttl.example.net. 1 in a $DESTIP 465\& echo update add $DESTNODE.lowttl.example.net. 1 in a $DESTIP
387\& echo 466\& echo
388\& } | nsupdate -d -k $CONFBASE:key.example.net. 467\& } | nsupdate \-d \-k $CONFBASE:key.example.net.
389.Ve 468.Ve
390.RE 469.RE
470.IP "node-change = relative-or-absolute-path" 4
471.IX Item "node-change = relative-or-absolute-path"
472Same as \f(CW\*(C`node\-change\*(C'\fR, but gets called whenever something about a
473connection changes (such as the source \s-1IP\s0 address).
391.IP "node-down = relative-or-absolute-path" 4 474.IP "node-down = relative-or-absolute-path" 4
392.IX Item "node-down = relative-or-absolute-path" 475.IX Item "node-down = relative-or-absolute-path"
393Same as \f(CW\*(C`node\-up\*(C'\fR, but gets called whenever a connection is lost. 476Same as \f(CW\*(C`node\-up\*(C'\fR, but gets called whenever a connection is lost.
394.IP "pid-file = path" 4 477.IP "pid-file = path" 4
395.IX Item "pid-file = path" 478.IX Item "pid-file = path"
… …
402be doubled. A single \f(CW%s\fR is replaced by the hostname, so you could 485be doubled. A single \f(CW%s\fR is replaced by the hostname, so you could
403use paths like \f(CW\*(C`hostkeys/%s\*(C'\fR to fetch the files at the location where 486use paths like \f(CW\*(C`hostkeys/%s\*(C'\fR to fetch the files at the location where
404\&\f(CW\*(C`gvpectrl\*(C'\fR puts them. 487\&\f(CW\*(C`gvpectrl\*(C'\fR puts them.
405.Sp 488.Sp
406Since only the private key file of the current node is used and the 489Since only the private key file of the current node is used and the
407private key file should be kept secret per-host to avoid spoofings, it is 490private key file should be kept secret per-node to avoid spoofing, it is
408not recommended to use this feature. 491not recommended to use this feature.
409.IP "rekey = seconds" 4 492.IP "rekey = seconds" 4
410.IX Item "rekey = seconds" 493.IX Item "rekey = seconds"
411Sets the rekeying interval in seconds (default: \f(CW3600\fR). Connections are 494Sets the rekeying interval in seconds (default: \f(CW3600\fR). Connections are
412reestablished every \f(CW\*(C`rekey\*(C'\fR seconds. 495reestablished every \f(CW\*(C`rekey\*(C'\fR seconds, making them use a new encryption
496key.
497.IP "nfmark = integer" 4
498.IX Item "nfmark = integer"
499This advanced option, when set to a nonzero value (default: \f(CW0\fR), tries
500to set the netfilter mark (or fwmark) value on all sockets gvpe uses to
501send packets.
502.Sp
503This can be used to make gvpe use a different set of routing rules. For
504example, on GNU/Linux, the \f(CW\*(C`if\-up\*(C'\fR could set \f(CW\*(C`nfmark\*(C'\fR to 1000 and then
505put all routing rules into table \f(CW99\fR and then use an ip rule to make
506gvpe traffic avoid that routing table, in effect routing normal traffic
507via gvpe and gvpe traffic via the normal system routing tables:
508.Sp
509.Vb 1
510\& ip rule add not fwmark 1000 lookup 99
511.Ve
413.Sh "\s-1NODE\s0 \s-1SPECIFIC\s0 \s-1SETTINGS\s0" 512.Sh "\s-1NODE\s0 \s-1SPECIFIC\s0 \s-1SETTINGS\s0"
414.IX Subsection "NODE SPECIFIC SETTINGS" 513.IX Subsection "NODE SPECIFIC SETTINGS"
415The following settings are node\-specific, that is, every node can have 514The following settings are node-specific, that is, every node can have
416different settings, even within the same gvpe instance. Settings that are 515different settings, even within the same gvpe instance. Settings that are
417executed before the first node section set the defaults, settings that are 516set before the first node section set the defaults, settings that are
418executed within a node section only apply to the given node. 517set within a node section only apply to the given node.
518.IP "allow-direct = nodename" 4
519.IX Item "allow-direct = nodename"
520Allow direct connections to this node. See \f(CW\*(C`deny\-direct\*(C'\fR for more info.
419.IP "compress = yes|true|on | no|false|off" 4 521.IP "compress = yes|true|on | no|false|off" 4
420.IX Item "compress = yes|true|on | no|false|off" 522.IX Item "compress = yes|true|on | no|false|off"
421Wether to compress data packets sent to this host (default: \f(CW\*(C`yes\*(C'\fR). 523Wether to compress data packets sent to this node (default: \f(CW\*(C`yes\*(C'\fR).
422Compression is really cheap even on slow computers and has no size 524Compression is really cheap even on slow computers and has no size
423overhead at all, so enabling this is a good idea. 525overhead at all, so enabling this is often a good idea.
424.IP "connect = ondemand | never | always | disabled" 4 526.IP "connect = ondemand | never | always | disabled" 4
425.IX Item "connect = ondemand | never | always | disabled" 527.IX Item "connect = ondemand | never | always | disabled"
426Sets the connect mode (default: \f(CW\*(C`always\*(C'\fR). It can be \f(CW\*(C`always\*(C'\fR (always 528Sets the connect mode (default: \f(CW\*(C`always\*(C'\fR). It can be \f(CW\*(C`always\*(C'\fR (always
427try to establish and keep a connection to the given host), \f(CW\*(C`never\*(C'\fR 529try to establish and keep a connection to the given node), \f(CW\*(C`never\*(C'\fR
428(never initiate a connection to the given host, but accept connections), 530(never initiate a connection to the given host, but accept connections),
429\&\f(CW\*(C`ondemand\*(C'\fR (try to establish a connection on the first packet sent, and 531\&\f(CW\*(C`ondemand\*(C'\fR (try to establish a connection when there are outstanding
430take it down after the keepalive interval) or \f(CW\*(C`disabled\*(C'\fR (node is bad, 532packets in the queue and take it down after the keepalive interval) or
431don't talk to it). 533\&\f(CW\*(C`disabled\*(C'\fR (node is bad, don't talk to it).
534.Sp
535Routers will automatically be forced to \f(CW\*(C`always\*(C'\fR unless they are
536\&\f(CW\*(C`disabled\*(C'\fR, to ensure all nodes can talk to each other.
537.IP "deny-direct = nodename | *" 4
538.IX Item "deny-direct = nodename | *"
539Deny direct connections to the specified node (or all nodes when \f(CW\*(C`*\*(C'\fR
540is given). Only one node can be specified, but you can use multiple
541\&\f(CW\*(C`allow\-direct\*(C'\fR and \f(CW\*(C`deny\-direct\*(C'\fR statements. This only makes sense in
542networks with routers, as routers are required for indirect connections.
543.Sp
544Sometimes, a node cannot reach some other nodes for reasons of network
545connectivity. For example, a node behind a firewall that only allows
546connections to/from a single other node in the network. In this case one
547should specify \f(CW\*(C`deny\-direct = *\*(C'\fR and \f(CW\*(C`allow\-direct = othernodename\*(C'\fR (the other
548node \fImust\fR be a router for this to work).
549.Sp
550The algorithm to check whether a connection may be direct is as follows:
551.Sp
5521. Other node mentioned in an \f(CW\*(C`allow\-direct\*(C'\fR? If yes, allow the connection.
553.Sp
5542. Other node mentioned in a \f(CW\*(C`deny\-direct\*(C'\fR? If yes, deny direct connections.
555.Sp
5563. Allow the connection.
557.Sp
558That is, \f(CW\*(C`allow\-direct\*(C'\fR takes precedence over \f(CW\*(C`deny\-direct\*(C'\fR.
559.Sp
560The check is done in both directions, i.e. both nodes must allow a direct
561connection before one is attempted, so you only need to specify connect
562limitations on one node.
432.IP "dns-domain = domain-suffix" 4 563.IP "dns-domain = domain-suffix" 4
433.IX Item "dns-domain = domain-suffix" 564.IX Item "dns-domain = domain-suffix"
434The \s-1DNS\s0 domain suffix that points to the \s-1DNS\s0 tunnel server for this node. 565The \s-1DNS\s0 domain suffix that points to the \s-1DNS\s0 tunnel server for this node.
435.Sp 566.Sp
436The domain must point to a \s-1NS\s0 record that points to the \fIdns-hostname\fR, 567The domain must point to a \s-1NS\s0 record that points to the \fIdns-hostname\fR,
437i.e. 568i.e.
438.Sp 569.Sp
439.Vb 2 570.Vb 2
440\& dns-domainname = tunnel.example.net 571\& dns\-domainname = tunnel.example.net
441\& dns-hostname = tunnel-server.example.net 572\& dns\-hostname = tunnel\-server.example.net
442.Ve 573.Ve
443.Sp 574.Sp
444Corresponds to the following \s-1DNS\s0 entries in the \f(CW\*(C`example.net\*(C'\fR domain: 575Corresponds to the following \s-1DNS\s0 entries in the \f(CW\*(C`example.net\*(C'\fR domain:
445.Sp 576.Sp
446.Vb 2 577.Vb 2
447\& tunnel.example.net. NS tunnel-server.example.net. 578\& tunnel.example.net. NS tunnel\-server.example.net.
448\& tunnel-server.example.net. A 13.13.13.13 579\& tunnel\-server.example.net. A 13.13.13.13
449.Ve 580.Ve
450.IP "dns-hostname = hostname/ip" 4 581.IP "dns-hostname = hostname/ip" 4
451.IX Item "dns-hostname = hostname/ip" 582.IX Item "dns-hostname = hostname/ip"
452The address to bind the \s-1DNS\s0 tunnel socket to, similar to the \f(CW\*(C`hostname\*(C'\fR, 583The address to bind the \s-1DNS\s0 tunnel socket to, similar to the \f(CW\*(C`hostname\*(C'\fR,
453but for the \s-1DNS\s0 tunnel protocol only. Default: \f(CW0.0.0.0\fR, but that might 584but for the \s-1DNS\s0 tunnel protocol only. Default: \f(CW0.0.0.0\fR, but that might
… …
465was compiled using the \f(CW\*(C`\-\-enable\-dns\*(C'\fR option. 596was compiled using the \f(CW\*(C`\-\-enable\-dns\*(C'\fR option.
466.IP "enable-icmp = yes|true|on | no|false|off" 4 597.IP "enable-icmp = yes|true|on | no|false|off" 4
467.IX Item "enable-icmp = yes|true|on | no|false|off" 598.IX Item "enable-icmp = yes|true|on | no|false|off"
468See \fIgvpe.protocol\fR\|(7) for a description of the \s-1ICMP\s0 transport protocol. 599See \fIgvpe.protocol\fR\|(7) for a description of the \s-1ICMP\s0 transport protocol.
469.Sp 600.Sp
470Enable the \s-1ICMP\s0 transport using icmp packets of type \f(CW\*(C`icmp\-type\*(C'\fR on this 601Enable the \s-1ICMP\s0 transport using \s-1ICMP\s0 packets of type \f(CW\*(C`icmp\-type\*(C'\fR on this
471node. 602node.
472.IP "enable-rawip = yes|true|on | no|false|off" 4 603.IP "enable-rawip = yes|true|on | no|false|off" 4
473.IX Item "enable-rawip = yes|true|on | no|false|off" 604.IX Item "enable-rawip = yes|true|on | no|false|off"
474See \fIgvpe.protocol\fR\|(7) for a description of the \s-1RAW\s0 \s-1IP\s0 transport protocol. 605See \fIgvpe.protocol\fR\|(7) for a description of the \s-1RAW\s0 \s-1IP\s0 transport protocol.
475.Sp 606.Sp
… …
488.Sp 619.Sp
489Enable the UDPv4 transport using the \f(CW\*(C`udp\-port\*(C'\fR port (default: \f(CW\*(C`no\*(C'\fR, 620Enable the UDPv4 transport using the \f(CW\*(C`udp\-port\*(C'\fR port (default: \f(CW\*(C`no\*(C'\fR,
490unless no other protocol is enabled for a node, in which case this 621unless no other protocol is enabled for a node, in which case this
491protocol is enabled automatically). 622protocol is enabled automatically).
492.Sp 623.Sp
493\&\s-1NOTE:\s0 Please specify \f(CW\*(C`enable\-udp = yes\*(C'\fR if you want t use it even though 624\&\s-1NOTE:\s0 Please specify \f(CW\*(C`enable\-udp = yes\*(C'\fR if you want to use it even though
494it might get switched on automatically, as some future version might 625it might get switched on automatically, as some future version might
495default to another default protocol. 626default to another default protocol.
627.IP "hostname = hostname | ip [can not be defaulted]" 4
628.IX Item "hostname = hostname | ip [can not be defaulted]"
629Forces the address of this node to be set to the given \s-1DNS\s0 hostname or \s-1IP\s0
630address. It will be resolved before each connect request, so dyndns should
631work fine. If this setting is not specified and a router is available,
632then the router will be queried for the address of this node. Otherwise,
633the connection attempt will fail.
634.Sp
635Note that \s-1DNS\s0 resolving is done synchronously, pausing the daemon. If that
636is an issue you need to specify \s-1IP\s0 addresses.
496.IP "icmp-type = integer" 4 637.IP "icmp-type = integer" 4
497.IX Item "icmp-type = integer" 638.IX Item "icmp-type = integer"
498Sets the type value to be used for outgoing (and incoming) packets sent 639Sets the type value to be used for outgoing (and incoming) packets sent
499via the \s-1ICMP\s0 transport. 640via the \s-1ICMP\s0 transport.
500.Sp 641.Sp
501The default is \f(CW0\fR (which is \f(CW\*(C`echo\-reply\*(C'\fR, also known as 642The default is \f(CW0\fR (which is \f(CW\*(C`echo\-reply\*(C'\fR, also known as
502\&\*(L"ping\-replies\*(R"). Other useful values include \f(CW8\fR (\f(CW\*(C`echo\-request\*(C'\fR, a.k.a. 643\&\*(L"ping-reply\*(R"). Other useful values include \f(CW8\fR (\f(CW\*(C`echo\-request\*(C'\fR, a.k.a.
503\&\*(L"ping\*(R") and \f(CW11\fR (\f(CW\*(C`time\-exceeded\*(C'\fR), but any 8\-bit value can be used. 644\&\*(L"ping\*(R") and \f(CW11\fR (\f(CW\*(C`time\-exceeded\*(C'\fR), but any 8\-bit value can be used.
645.IP "if-up-data = value" 4
646.IX Item "if-up-data = value"
647The value specified using this directive will be passed to the \f(CW\*(C`if\-up\*(C'\fR
648script in the environment variable \f(CW\*(C`IFUPDATA\*(C'\fR.
504.IP "inherit-tos = yes|true|on | no|false|off" 4 649.IP "inherit-tos = yes|true|on | no|false|off" 4
505.IX Item "inherit-tos = yes|true|on | no|false|off" 650.IX Item "inherit-tos = yes|true|on | no|false|off"
506Wether to inherit the \s-1TOS\s0 settings of packets sent to the tunnel when 651Wether to inherit the \s-1TOS\s0 settings of packets sent to the tunnel when
507sending packets to this node (default: \f(CW\*(C`yes\*(C'\fR). If set to \f(CW\*(C`yes\*(C'\fR then 652sending packets to this node (default: \f(CW\*(C`yes\*(C'\fR). If set to \f(CW\*(C`yes\*(C'\fR then
508outgoing tunnel packets will have the same \s-1TOS\s0 setting as the packets sent 653outgoing tunnel packets will have the same \s-1TOS\s0 setting as the packets sent
509to the tunnel device, which is usually what you want. 654to the tunnel device, which is usually what you want.
510.IP "max-retry = positive-number" 4 655.IP "max-retry = positive-number" 4
511.IX Item "max-retry = positive-number" 656.IX Item "max-retry = positive-number"
512The maximum interval in seconds (default: \f(CW3600\fR, one hour) between 657The maximum interval in seconds (default: \f(CW3600\fR, one hour) between
513retries to establish a connection to this node. When a connection cannot 658retries to establish a connection to this node. When a connection cannot
514be established, gvpe uses exponential backoff capped at this value. It's 659be established, gvpe uses exponential back-off capped at this value. It's
515sometimes useful to set this to a much lower value (e.g. \f(CW120\fR) on 660sometimes useful to set this to a much lower value (e.g. \f(CW120\fR) on
516connections to routers that usually are stable but sometimes are down, to 661connections to routers that usually are stable but sometimes are down, to
517assure quick reconnections even after longer downtimes. 662assure quick reconnections even after longer downtimes.
663.IP "max-ttl = seconds" 4
664.IX Item "max-ttl = seconds"
665Expire packets that couldn't be sent after this many seconds
666(default: \f(CW60\fR). Gvpe will normally queue packets for a node without an
667active connection, in the hope of establishing a connection soon. This
668value specifies the maximum lifetime a packet will stay in the queue, if a
669packet gets older, it will be thrown away.
670.IP "max-queue = positive\-number>=1" 4
671.IX Item "max-queue = positive-number>=1"
672The maximum number of packets that will be queued (default: \f(CW512\fR)
673for this node. If more packets are sent then earlier packets will be
674expired. See \f(CW\*(C`max\-ttl\*(C'\fR, above.
518.IP "router-priority = 0 | 1 | positive\-number>=2" 4 675.IP "router-priority = 0 | 1 | positive\-number>=2" 4
519.IX Item "router-priority = 0 | 1 | positive-number>=2" 676.IX Item "router-priority = 0 | 1 | positive-number>=2"
520Sets the router priority of the given host (default: \f(CW0\fR, disabled). If 677Sets the router priority of the given node (default: \f(CW0\fR, disabled).
521some host tries to connect to another host without a hostname, it asks
522the router host for it's \s-1IP\s0 address. The router host is the one with the
523highest priority larger than \f(CW1\fR that is currently reachable.
524.Sp 678.Sp
525Make sure all hosts always connect (\f(CW\*(C`connect = always\*(C'\fR) to the router 679If some node tries to connect to another node but it doesn't have a
526hosts, otherwise connecting to them might be impossible. 680hostname, it asks a router node for it's \s-1IP\s0 address. The router node
681chosen is the one with the highest priority larger than \f(CW1\fR that is
682currently reachable. This is called a \fImediated\fR connection, as the
683connection itself will still be direct, but it uses another node to
684mediate between the two nodes.
685.Sp
686The value \f(CW0\fR disables routing, that means if the node receives a packet
687not for itself it will not forward it but instead drop it.
527.Sp 688.Sp
528The special value \f(CW1\fR allows other hosts to route through the router 689The special value \f(CW1\fR allows other hosts to route through the router
529host, but they will never route through it by default. The value \f(CW0\fR 690host, but they will never route through it by default (i.e. the config
530disables routing. The idea behind this is that some hosts can, if 691file of another node needs to specify a router priority higher than one
692to choose such a node for routing).
693.Sp
694The idea behind this is that some hosts can, if required, bump the
531required, bump the \f(CW\*(C`router\-priority\*(C'\fR setting to higher than \f(CW1\fR in their 695\&\f(CW\*(C`router\-priority\*(C'\fR setting to higher than \f(CW1\fR in their local config to
532local config to route through specific hosts. If \f(CW\*(C`router\-priority\*(C'\fR is 696route through specific hosts. If \f(CW\*(C`router\-priority\*(C'\fR is \f(CW0\fR, then routing
533\&\f(CW0\fR, then routing will be refused, so \f(CW1\fR serves as a \*(L"enable, but do 697will be refused, so \f(CW1\fR serves as a \*(L"enable, but do not use by default\*(R"
534not use by default\*(R" switch. 698switch.
699.Sp
700Nodes with \f(CW\*(C`router\-priority\*(C'\fR set to \f(CW2\fR or higher will always be forced
701to \f(CW\*(C`connect\*(C'\fR = \f(CW\*(C`always\*(C'\fR (unless they are \f(CW\*(C`disabled\*(C'\fR).
535.IP "tcp-port = port-number" 4 702.IP "tcp-port = port-number" 4
536.IX Item "tcp-port = port-number" 703.IX Item "tcp-port = port-number"
537Similar to \f(CW\*(C`udp\-port\*(C'\fR (default: \f(CW655\fR), but sets the \s-1TCP\s0 port number. 704Similar to \f(CW\*(C`udp\-port\*(C'\fR (default: \f(CW655\fR), but sets the \s-1TCP\s0 port number.
538.IP "udp-port = port-number" 4 705.IP "udp-port = port-number" 4
539.IX Item "udp-port = port-number" 706.IX Item "udp-port = port-number"
540Sets the port number used by the \s-1UDP\s0 protocol (default: \f(CW655\fR, not 707Sets the port number used by the \s-1UDP\s0 protocol (default: \f(CW655\fR, not
541officially assigned by \s-1IANA\s0!). 708officially assigned by \s-1IANA\s0!).
542.SH "CONFIG DIRECTORY LAYOUT" 709.SH "CONFIG DIRECTORY LAYOUT"
543.IX Header "CONFIG DIRECTORY LAYOUT" 710.IX Header "CONFIG DIRECTORY LAYOUT"
544The default (or recommended) directory layout for the config directory is: 711The default (or recommended) directory layout for the config directory is:
545.IP "\(bu" 4 712.IP "gvpe.conf" 4
546.IX Xref "gvpe.conf" 713.IX Item "gvpe.conf"
547The config file. 714The config file.
548.IP "\(bu" 4 715.IP "if-up" 4
549.IX Xref "if-up" 716.IX Item "if-up"
550The if-up script 717The if-up script
551.IP "," 4 718.IP "node-up, node-down" 4
552.IX Xref "node-up node-down" 719.IX Item "node-up, node-down"
553If used the node up or node-down scripts. 720If used the node up or node-down scripts.
554.IP "\(bu" 4 721.IP "hostkey" 4
555.IX Xref "hostkey" 722.IX Item "hostkey"
556The private key (taken from \f(CW\*(C`hostkeys/nodename\*(C'\fR) of the current host. 723The private key (taken from \f(CW\*(C`hostkeys/nodename\*(C'\fR) of the current host.
557.IP "\(bu" 4 724.IP "pubkey/nodename" 4
558.IX Xref "pubkey nodename" 725.IX Item "pubkey/nodename"
559The public keys of the other nodes, one file per node. 726The public keys of the other nodes, one file per node.
560.SH "SEE ALSO" 727.SH "SEE ALSO"
561.IX Header "SEE ALSO" 728.IX Header "SEE ALSO"
562\&\fIgvpe\fR\|(5), \fIgvpe\fR\|(8), \fIgvpectrl\fR\|(8). 729\&\fIgvpe\fR\|(5), \fIgvpe\fR\|(8), \fIgvpectrl\fR\|(8).
563.SH "AUTHOR" 730.SH "AUTHOR"
564.IX Header "AUTHOR" 731.IX Header "AUTHOR"
565Marc Lehmann <gvpe@plan9.de> 732Marc Lehmann <gvpe@schmorp.de>

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