Update topology.json

[klondi]

The static arp tables in the hosts use the wrong MAC addresses for the routers using 01:00 and 02:00 for router 1 and 03:00 and 04:00 for router 2.

If we check the runtime topologies we can see that router 1 has 01:00, router 2 has 02:00, router 3has 03:00 and router 4 has 04:00.

Update the host configuration so the MAC address on their packets matches the expected address for the specific router.

[github-actions]

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[jafingerhut]

It is fairly common to configure routers with different MAC addresses on different ports. It is also common to configure routers with the same MAC address on different ports.

Given those facts, the current configuration isn't actually a bug, is it? It is simply a configuration that maybe not everyone is familiar with.

[jafingerhut]

It is fairly common to configure routers with different MAC addresses on different ports. It is also common to configure routers with the same MAC address on different ports.

Given those facts, the current configuration isn't actually a bug, is it? It is simply a configuration that maybe not everyone is familiar with.

Actually, I might be wrong that it is also common to configure routers with the same MAC address on different ports. That might actually be an unusual and potentially error-prone configuration. Not certain.

Regardless of the correct answer to that question, it is definitely common to configure different MAC addresses on different ports.