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OSPF intro: also look at bird show route

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Hans van Kranenburg 2015-06-08 22:59:01 +02:00
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ospf-intro/README.md
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@ -300,7 +300,7 @@ The inevitable must happen. Right now, you should know enough to be able to conf
Go ahead, do it, now!
After adding the configuration and making BIRD reload it, `birdc show protocols` should show an active OSPF protocol. Now, just wait for a few seconds and do `ip r` again on R6:
After adding the configuration and making BIRD reload it, `birdc show protocols` should show an active OSPF protocol. Now, just wait for a few seconds and do `ip r` again on R6, which shows us the routing table that is actually used by the forwarding process:
root@R6:/# ip r
10.0.1.0/24 dev vlan1001 proto kernel scope link src 10.0.1.8
@ -309,6 +309,16 @@ After adding the configuration and making BIRD reload it, `birdc show protocols`
10.9.99.1 via 10.0.1.5 dev vlan1001 proto bird
10.34.2.0/24 dev vlan1034 proto kernel scope link src 10.34.2.1
In the interactive BIRD console, `show route` can be used to see the view that BIRD has on the network. You can see that the three routes that have nexthop `10.0.1.5` were learned from router `10.9.99.1`, which is the Router ID of R1.
bird> show route
10.0.1.0/24 dev vlan1001 [ospf1 2015-06-07] * I (150/10) [10.9.99.6]
10.1.2.0/24 via 10.0.1.5 on vlan1001 [ospf1 22:51:52] * I (150/20) [10.9.99.1]
10.3.56.0/24 via 10.0.1.5 on vlan1001 [ospf1 2015-06-07] * I (150/20) [10.9.99.1]
10.9.99.1/32 via 10.0.1.5 on vlan1001 [ospf1 2015-06-07] * I (150/10) [10.9.99.1]
10.9.99.6/32 dev lo [ospf1 2015-06-07] * I (150/0) [10.9.99.6]
10.34.2.0/24 dev vlan1034 [ospf1 2015-06-07] * I (150/10) [10.9.99.6]
I guess it's not very useful any more to continue typing much more text in this tutorial page now, because I'm quite surely losing your attention. :-D Just go ahead, and configure OSPF on the other two routers and see what happens. One fun thing to do is to start a `watch ip r` on R6 and see live changes of what will happen while you're working on the other routers.
When enabling OSPF on all four routers, you should be able to reach anything from anything in the whole network.