General Information

# NETWORK AREA
0 10.2.0.0/24 local_10
1 10.3.0.0/24 local_10
After all routers have been set up as described above, and the links between them are operational,
the routing tables of the three routers look as follows:
[admin@OSPF_MAIN] ip route> print
Flags: X - disabled, I - invalid, D - dynamic, J - rejected,
C - connect, S - static, r - rip, o - ospf, b - bgp
# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 Io 192.168.0.0/24 110
1 DC 192.168.0.0/24 r 0.0.0.0 0 main_gw
2 Do 10.3.0.0/24 r 10.2.0.1 110 to_peer_2
r 10.1.0.1
to_peer_1
3 Io 10.2.0.0/24 110
4 DC 10.2.0.0/24 r 0.0.0.0 0 to_peer_2
5 Io 10.1.0.0/24 110
6 DC 10.1.0.0/24 r 0.0.0.0 0 to_peer_1
[admin@OSPF_peer_1] ip route> print
Flags: X - disabled, I - invalid, D - dynamic, J - rejected,
C - connect, S - static, r - rip, o - ospf, b - bgp
# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 Do 192.168.0.0/24 r 10.1.0.2 110 to_main
1 Io 10.3.0.0/24 110
2 DC 10.3.0.0/24 r 0.0.0.0 0 backup
3 Do 10.2.0.0/24 r 10.1.0.2 110 to_main
r 10.3.0.2
backup
4 Io 10.1.0.0/24 110
5 DC 10.1.0.0/24 r 0.0.0.0 0 to_main
[admin@OSPF_peer_2] ip route> print
Flags: X - disabled, I - invalid, D - dynamic, J - rejected,
C - connect, S - static, r - rip, o - ospf, b - bgp
# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 Do 192.168.0.0/24 r 10.2.0.2 110 to_main
1 Io 10.3.0.0/24 110
2 DC 10.3.0.0/24 r 0.0.0.0 0 to_peer_1
3 Io 10.2.0.0/24 110
4 DC 10.2.0.0/24 r 0.0.0.0 0 to_main
5 Do 10.1.0.0/24 r 10.3.0.1 110 to_peer_1
r 10.2.0.2
to_main
Routing tables with Revised Link Cost
This example shows how to set up link cost. Let us assume, that the link between the routers
OSPF_peer_1 and OSPF_peer_2 has a higher cost (might be slower, we have to pay more for the
traffic through it, etc.).
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