RIPv2 in VRF

6 Nov 2024

      Hi,

I am trying to run RIPv2 in VRF and this doesn't seem to work correctly.
There is no RIP neighbor shown in BIRD, however a tcpdump running on the 
interface is showing RIP packets IN/OUT, advertising and receiving routes.

The configuration is below, am I missing something?

ipv4 table xxx;
protocol direct direct_xxx {
         vrf "xxx";
         ipv4 {
                 table xxx;
                 import all;
         };
         interface "ens34";
}
protocol rip rip_xxx {
         vrf "xxx";
         ipv4 {
                 import all;
                 export all;
                 table xxx;
         };
         interface "ens34" {
                 metric 2;
                 version 2;
                 address 224.0.0.9;
                 mode multicast;
         };
}

bird> show rip neighbors
rip_xxx:
IP address                Interface  Metric Routes    Seen

bird> sh route table xxx
Table xxx:
10.100.100.0/30      unicast [direct_xxx 2024-11-06 21:00:31] * (240)
	dev ens34

root:# ip link show dev ens34
3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast 
master xxx state UP mode DEFAULT group default qlen 1000
     link/ether 00:0c:29:60:5f:76 brd ff:ff:ff:ff:ff:ff

root:# ip vrf show
Name              Table
-----------------------
xxx            200

00:0c:29:60:5f:76 > 01:00:5e:00:00:09, ethertype IPv4 (0x0800), length 
86: (tos 0xc0, ttl 1, id 22904, offset 0, flags [none], proto UDP (17), 
length 72)
     10.100.100.2.520 > 224.0.0.9.520:
	RIPv2, Response, length: 44, routes: 1 or less
	  AFI IPv4,    10.100.100.0/30, tag 0x0000, metric: 1, next-hop: self

00:0c:29:21:ff:6e > 01:00:5e:00:00:09, ethertype IPv4 (0x0800), length 
66: (tos 0xc0, ttl 1, id 19130, offset 0, flags [none], proto UDP (17), 
length 52)
     10.100.100.1.520 > 224.0.0.9.520:
	RIPv2, Response, length: 24, routes: 1 or less
	  AFI IPv4,     10.11.11.11/32, tag 0x0000, metric: 1, next-hop: self

Thanks!

Mihai

Mihai

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