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nbari
Asked: 2022-10-03 23:16:02 +0800 CST

how to reach a subnet using a parent router via OSPF

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I am trying to configure OSPF (using bird) to reach a subnet from a router that has no direct connection to the node with the subnet, something like this:

ospf

The AS has two networks, but for testing purposes, I am announcing them in different VMs,

VM1 advertises fdad:23e:f50::/48

VM2 advertises fdba:54:32::/48

Between VM1 and VM2 I have a wireguard tunnel and can reach/ping the networks

In VM3 I would like to use network fdba:54:32::2/64, I have a wireguad tunnel between VM2 and VM3 and I can ping/reach the IP's.

The problem I have is that from VM1 I can't reach VM3 and vice versa, this is my OSPF config:

VM2 configuration:

protocol ospf v3 wg6 {
    ipv6 {
        export all;
    };
    area 0 {
        interface "wg.4242421477";
        interface "wg.stub";
    };
}

VM3 configuration

protocol ospf v3 wg6 {
    ipv6 {
        export all;
    };
    area 0 {
        interface "wg.stub";
        interface "ens192";
    };
}

From VM3 (the stub) This is the output of show route for the IP In VM1

bird> show route for fdad:23e:f50::1
Table master6:
fdad:23e:f50::/48    unicast [wg6 17:35:44.984] E2 (150/20/10000) [217.160.50.77]
        via fe80::1:45:136:71:70 on wg.stub

How to use VM2 as the router between VM1 and VM2?

ospf

0 Answers