RIP

Command

RIP -- Routing Interface Protocol configuration commands.

Synopsis

RIP AC[cept] <ip_address>
RIP A[dd] <ip_address> <secs>
RIP D[rop] <ip_address>
RIP L[earn] [ON | OFF]
RIP R[efuse] <ip_address>
RIP S[tatus]
RIP T[imeout] [secs]

Description

RIP allows routers to learn of each other's routing, in a similar fashion to NetRom. Xrouter implements RIP98, which is a form optimised for radio, and the RIP commands are used to configure the system.

Options

Peers which have been added to the refuse list using the RIP REFUSE command can be removed using RIP ACCEPT, allowing the router to learn information from them. <ip_address> is the IP address of the peer.

RIP ADD adds a peer to the list of those who will receive RIP transmissions from us. The <secs> parameter specifies the interval between transmissions, and should be chosen in agreement with the peer, so that <secs> is approximately one quarter of the lifetime of their RIP entries. This allows up to 4 transmissions to be lost before the route is purged.

RIP DROP removes a peer from the list of those who will receive RIP transmissions from us.

RIP LEARN turns route learning on or off. By default, RIP98 route learning is OFF. If no arguments are given, the current status is reported. "ON" allows Xrouter to learn routes from its RIP98 peers, and "OFF" prevents it. It is recommended that you enable LEARN mode.

RIP REFUSE is the opposite of ACCEPT. It adds a peer to the refuse list so broadcasts from that peer will be ignored. This command is providied in case you need to exclude a peer which is advertising faulty routes.

RIP STATUS displays various RIP98 parameters such as the list of peers who receive broadcasts from us, the list of peers we are ignoring, the timeout value, and the setting of learn mode.

RIP TIMEOUT is used to display and set the lifetime of learned routes. Routes learned from peers have a finite lifetime. If the route entry is not refreshed within this lifetime, it is removed from the routes table. The timeout should preferably be 4 times the interval between broadcasts from peers, and the default is currently 4 hours.

Examples

RIP ACCEPT 44.131.95.2
RIP ADD 44.131.95.240 3600
RIP DROP 44.131.90.6
RIP LEARN ON
RIP REFUSE 44.131.57.1
RIP STATUS
RIP TIMEOUT 14400

Files

The RIP ADD, LEARN, REFUSE and TIMEOUT commands may also beused within IPROUTE.SYS or BOOTCMDS.SYS.

Availability

Sysop-only.

See Also

BOOTCMDS.SYS(8) -- Commands to Execute at Bootup.
IPROUTE.SYS(8) -- IP Router Configuration File.