RIP
RIP is a widely deployed interior gateway protocol. RIP was developed in the 1970s at Xerox Labs as part of the XNS routing protocol. RIP is a distance-vector protocol and is based on the Bellman-Ford algorithms. As a distance-vector protocol, RIP router send updates to its neighbors periodically, thus allowing the convergence to a known topology. In each update, the distance to any given network will be broadcast to its neighboring router.
Supported versions of RIP are:
General Configuration
This command enables RIP and sets the RIP enable interface by NETWORK. The interfaces which have addresses matching with NETWORK are enabled.
This command specifies a RIP enabled interface by interface name. Both the sending and receiving of RIP packets will be enabled on the port specified in this command.
This command specifies a RIP neighbor. When a neighbor doesn’t understand multicast, this command is used to specify neighbors. In some cases, not all routers will be able to understand multicasting, where packets are sent to a network or a group of addresses. In a situation where a neighbor cannot process multicast packets, it is necessary to establish a direct link between routers.
This command sets the specified interface to passive mode. On passive mode interface, all receiving packets are processed as normal and VyOS does not send either multicast or unicast RIP packets except to RIP neighbors specified with neighbor command.
Optional Configuration
This command change the distance value of RIP. The distance range is 1 to 255.
Note
Routes with a distance of 255 are effectively disabled and not installed into the kernel.
This command sets default RIP distance to a specified value when the routes source IP address matches the specified prefix.
This command can be used with previous command to sets default RIP distance to specified value when the route source IP address matches the specified prefix and the specified access-list.
This command can be used to filter the RIP path using access lists.
in and out this is the direction in which the access
lists are applied.
This command allows you apply access lists to a chosen interface to filter the RIP path.
This command can be used to filter the RIP path using prefix lists.
in and out this is the direction in which the prefix
lists are applied.
This command allows you apply prefix lists to a chosen interface to filter the RIP path.
This command is specific to FRR and VyOS. The route command makes a static
route only inside RIP. This command should be used only by advanced users
who are particularly knowledgeable about the RIP protocol. In most cases,
we recommend creating a static route in VyOS and redistributing it in RIP
using redistribute static.
This command specifies the update timer. Every update timer seconds, the RIP process is awakened to send an unsolicited response message containing the complete routing table to all neighboring RIP routers. The time range is 5 to 2147483647. The default value is 30 seconds.
This command specifies the timeout timer. Upon expiration of the timeout, the route is no longer valid; however, it is retained in the routing table for a short time so that neighbors can be notified that the route has been dropped. The time range is 5 to 2147483647. The default value is 180 seconds.
Redistribution Configuration
This command redistributes routing information from the given route source into the RIP tables. There are five modes available for route source: bgp, connected, kernel, ospf, static.
This command specifies metric for redistributed routes from the given route source. There are five modes available for route source: bgp, connected, kernel, ospf, static. The metric range is 1 to 16.
This command allows to use route map to filter redistributed routes from the given route source. There are five modes available for route source: bgp, connected, kernel, ospf, static.
This command modifies the default metric (hop count) value for redistributed
routes. The metric range is 1 to 16. The default value is 1. This command
does not affect connected route even if it is redistributed by
redistribute connected. To modify connected routes metric
value, please use redistribute connected metric.
Interfaces Configuration
This command sets the interface with RIP simple password authentication. This command also sets authentication string. The string must be shorter than 16 characters.
This command sets the interface with RIP MD5 authentication. This command also sets MD5 Key. The key must be shorter than 16 characters.
This command disables split-horizon on the interface. By default, VyOS does not advertise RIP routes out the interface over which they were learned (split horizon).3
Operational Mode Commands
Codes: R - RIP, C - connected, S - Static, O - OSPF, B - BGP
Sub-codes:
(n) - normal, (s) - static, (d) - default, (r) - redistribute,
(i) - interface
Network Next Hop Metric From Tag Time
C(i) 10.0.12.0/24 0.0.0.0 1 self 0
C(i) 10.0.13.0/24 0.0.0.0 1 self 0
R(n) 10.0.23.0/24 10.0.12.2 2 10.0.12.2 0 02:53
The command displays current RIP status. It includes RIP timer, filtering, version, RIP enabled interface and RIP peer information.
Routing Protocol is "rip"
Sending updates every 30 seconds with +/-50%, next due in 11 seconds
Timeout after 180 seconds, garbage collect after 120 seconds
Outgoing update filter list for all interface is not set
Incoming update filter list for all interface is not set
Default redistribution metric is 1
Redistributing:
Default version control: send version 2, receive any version
Interface Send Recv Key-chain
eth0 2 1 2
eth2 2 1 2
Routing for Networks:
10.0.12.0/24
eth0
Routing Information Sources:
Gateway BadPackets BadRoutes Distance Last Update
10.0.12.2 0 0 120 00:00:11
Distance: (default is 120)
Configuration Example
Simple RIP configuration using 2 nodes and redistributing connected interfaces.
Node 1:
set interfaces loopback address 10.1.1.1/32
set protocols rip network 192.168.0.0/24
set protocols rip redistribute connected
Node 2:
set interfaces loopback address 10.2.2.2/32
set protocols rip network 192.168.0.0/24
set protocols rip redistribute connected