Planning out my new network topology; I wanted to use multiple routers — and have them share routes between them. So I started looking into OSPF.
I made a simple lab in EVE-NG, and set up route sharing between MikroTik’s RouterOS and VyOS.
Table of contents
EVE-NG lab
The MikroTik router is connected to two virtual PC’s on 10.10.10.0/24. VyOS is also connected to two VPC’s; one on 192.168.10.0/24, and the other on 192.168.20.0/24.
The two routers are connected together on 10.12.13.0/24 — MikroTik being 10.12.13.1, and VyOS; 10.12.13.2.
MikroTik
Add OSPF to networks 10.10.10.0/24 and 10.12.13.0/24. Make the router-id 10.12.13.1:
routing ospf network add network=10.10.10.0/24 area=backbone
routing ospf network add network=10.12.13.0/24 area=backbone
routing ospf instance set default router-id=10.12.13.1
VyOS
Enter configuration mode, and add OSPF to networks 10.12.13.0/24, 192.168.10.0/24, and 192.168.20.0/24. Make router-id 10.12.13.2, commit and save:
config
set protocols ospf area 0.0.0.0 network 10.12.13.0/24
set protocols ospf area 0.0.0.0 network 192.168.10.0/24
set protocols ospf area 0.0.0.0 network 192.168.20.0/24
set protocols ospf parameters router-id 10.12.13.2
commit && save
More information about VyOS OSPF in the documentation.
Routes
After the two routers shared their routes — this is what the OSPF routing tables looked like:
[admin@MikroTik] > routing ospf route print
# DST-ADDRESS STATE COST GATEWAY INTERFACE
0 10.10.10.0/24 intra-area 10 0.0.0.0 bridge1
1 10.12.13.0/24 intra-area 10 0.0.0.0 ether2
2 192.168.10.0/24 intra-area 11 10.12.13.2 ether2
3 192.168.20.0/24 intra-area 11 10.12.13.2 ether2
vyos@vyos:~$ show ip ospf route
============ OSPF network routing table ============
N 10.10.10.0/24 [11] area: 0.0.0.0
via 10.12.13.1, eth0
N 10.12.13.0/24 [1] area: 0.0.0.0
directly attached to eth0
N 192.168.10.0/24 [1] area: 0.0.0.0
directly attached to eth1
N 192.168.20.0/24 [1] area: 0.0.0.0
directly attached to eth2
Fin
I’m not sure I’ll end up using multiple routers, time will tell. But it was a good learning experience to play with OSPF in EVE-NG — and now I have it documented 🙂
Last commit 2024-04-05, with message: Tag cleanup.
