5 .Id $Id: startup-config.5,v 1.14 2005/09/15 09:34:49 bodea Exp $
6 .TH STARTUP-CONFIG 5 "\*(Dt" L2TPNS "File Formats and Conventions"
8 startup\-config \- configuration file for l2tpns
10 /etc/l2tpns/startup-config
13 is the configuration file for
16 The format is plain text, in the same format as accepted by the
19 telnet administrative interface. Comments are indicated by either the
25 Settings are specified with
27 .BI "set " "variable value"
35 Set the level of debugging messages written to the log file. The
36 value should be between 0 and 5, with 0 being no debugging, and 5
40 This will be where all logging and debugging information is written
41 to. This may be either a filename, such as
44 .BR syslog : \fIfacility\fR ,
47 is any one of the syslog logging facilities, such as
51 If set, the process id will be written to the specified file. The
52 value must be an absolute path.
55 Path to random data source (default
57 Use "" to use the rand() library function.
62 for authenticating tunnel request. Must be the same as the LAC, or
63 authentication will fail. Only actually be used if the LAC requests
67 Restart timer for PPP protocol negotiation in seconds (default: 3).
70 Number of configure requests to send before giving up (default: 10).
73 Number of Configure-Nak requests to send before sending a
74 Configure-Reject (default: 5).
77 PPP link MRU (default: 1452).
79 .BR primary_dns , " secondary_dns"
80 Whenever a PPP connection is established, DNS servers will be sent to the
81 user, both a primary and a secondary. If either is set to 0.0.0.0, then that
84 .BR primary_radius , " secondary_radius"
85 Sets the RADIUS servers used for both authentication and accounting.
86 If the primary server does not respond, then the secondary RADIUS
89 .BR primary_radius_port , " secondary_radius_port"
90 Sets the authentication ports for the primary and secondary RADIUS
91 servers. The accounting port is one more than the authentication
92 port. If no ports are given, authentication defaults to 1645, and
96 If set to true, then RADIUS accounting packets will be sent. A
98 record will be sent when the session is successfully authenticated,
101 record when the session is closed.
106 is on, defines the interval between sending of RADIUS interim
107 accounting records (in seconds).
110 Secret to be used in RADIUS packets.
113 A comma separated list of supported RADIUS authentication methods
114 ("pap" or "chap"), in order of preference (default "pap").
117 Port for DAE RADIUS (Packet of Death/Disconnect, Change of Authorization)
118 requests (default: 3799).
120 .B allow_duplicate_users
121 Allow multiple logins with the same username. If false (the default),
122 any prior session with the same username will be dropped when a new
123 session is established.
126 When the tun interface is created, it is assigned the address
127 specified here. If no address is given, 1.1.1.1 is used. Packets
128 containing user traffic should be routed via this address if given,
129 otherwise the primary address of the machine.
132 Address to send to clients as the default gateway.
135 Determines whether or not to send a gratuitous ARP for the
137 when the server is ready to handle traffic (default: true). This
138 setting is ignored if BGP is configured.
141 Sets the default speed (in kbits/s) which sessions will be limited to.
144 Number of token buckets to allocate for throttling. Each throttled
145 session requires two buckets (in and out).
148 If set to a directory, then every 5 minutes the current usage for
149 every connected use will be dumped to a file in this directory.
152 After starting up and binding the interface, change UID to this. This
153 doesn't work properly.
156 If set to true, then the current bandwidth utilization will be logged
157 every second. Even if this is disabled, you can see this information
163 Number of packets to read off each of the UDP and TUN fds when
164 returned as readable by select (default: 10). Avoids incurring the
165 unnecessary system call overhead of select on busy servers.
168 Sets the scheduling policy for the
172 This causes the kernel to immediately preempt any currently running
174 (normal) process in favour of
176 when it becomes runnable.
178 Ignored on uniprocessor systems.
181 Keep all pages mapped by the
186 Maximum number of host unreachable ICMP packets to send per second.
189 Maximum number of packets of downstream traffic to be handled each
190 tenth of a second per session. If zero, no limit is applied (default:
191 0). Intended as a DoS prevention mechanism and not a general
192 throttling control (packets are dropped, not queued).
195 Multicast cluster address (default: 239.192.13.13).
198 Interface for cluster packets (default: eth0).
201 TTL for multicast packets (default: 1).
203 .B cluster_hb_interval
204 Interval in tenths of a second between cluster heartbeat/pings.
206 .B cluster_hb_timeout
207 Cluster heartbeat timeout in tenths of a second. A new master will be
208 elected when this interval has been passed without seeing a heartbeat
211 .B cluster_master_min_adv
212 Determines the minumum number of up to date slaves required before the
213 master will drop routes (default: 1).
216 Enable negotiation of IPv6. This forms the the first 64 bits of the
217 client allocated address. The remaining 64 come from the allocated
218 IPv4 address and 4 bytes of 0s.
221 The routing configuration section is entered by the command
227 specifies the local AS number.
229 Subsequent lines prefixed with
230 .BI "neighbour " peer
231 define the attributes of BGP neighhbours. Valid commands are:
233 .BI "neighbour " peer " remote-as " as
235 .BI "neighbour " peer " timers " "keepalive hold"
239 specifies the BGP neighbour as either a hostname or IP address,
241 is the remote AS number and
244 are the timer values in seconds.
245 .SS NAMED ACCESS LISTS
246 Named access lists may be defined with either of
248 .BI "ip access\-list standard " name
250 .BI "ip access\-list extended " name
252 Subsequent lines starting with
256 define the body of the access\-list.
258 .B Standard Access Lists
260 Standard access lists are defined with:
262 .RB { permit | deny }
263 .IR source " [" dest ]
269 specify IP matches using one of:
282 are in dotted-quad notation, bits in the
284 indicate which address bits in
286 are relevant to the match (0 = exact match; 1 = don't care).
297 .BR 255.255.255.255 '.
300 .B Extended Access Lists
302 Extended access lists are defined with:
304 .RB { permit | deny }
306 .IR source " [" ports "] " dest " [" ports "] [" flags ]
319 are as described above for standard lists.
321 For TCP and UDP matches, source and destination may be optionally
326 .RB { eq | neq | gt | lt }
337 .RB { match\-any | match\-all }
338 .RB { + | - }{ fin | syn | rst | psh | ack | urg }
341 Match packets with any or all of the tcp flags set
348 Match "established" TCP connections: packets with
358 Match IP fragments. May not be specified on rules with layer 4