ELTEX ESR-3100 - Page 262

ESR series service routers.ESR-Series. User manual
262
Create and enable virtual link with the identifier 0.0.0.3:
esr(config-ospf-area)# virtual-link 0.0.0.3
esr(config-ospf-vlink)# enable
For R3 router, proceed to 1.1.1.1 area configuration mode:
esr(config-ospf)# area 1.1.1.1
Create and enable virtual link with the identifier 0.0.0.1:
esr(config-ospf-area)# virtual-link 0.0.0.1
esr(config-ospf-vlink)# enable
Example of routing table on R1 router:
esr# show ip route
C * 10.0.0.0/24 [0/0] dev gi1/0/12, [direct 00:49:34]
O * 10.0.1.0/24 [150/20] via 10.0.0.1 on gi1/0/12, [ospf1 00:49:53] (0.0.0.3)
O * 192.168.20.0/24 [150/30] via 10.0.0.1 on gi1/0/12, [ospf1 00:50:15] (0.0.0.3)
C * 192.168.10.0/24 [0/0] dev lo1, [direct 21:32:01]
Example ofrouting table on R3 router:
esr# show ip route
O * 10.0.0.0/24 [150/20] via 10.0.1.1 on gi1/0/12, [ospf1 14:38:35] (0.0.0.2)
C * 10.0.1.0/24 [0/0] dev gi1/0/12, [direct 14:35:34]
C * 192.168.20.0/24 [0/0] dev lo1, [direct 14:32:58]
O * 192.168.10.0/24 [150/30] via 10.0.1.1 on gi1/0/12, [ospf1 14:39:54] (0.0.0.1)
Since OSPF considers virtual link as the part of the area, R1 routes received from R3 are marked as an
intrazone and vice versa.
To view the neighbors, use the following command:
esr# show ip ospf neighbors 10
To view OSPF routing table, use the following command:
esr# show ip ospf 10
Enable OSPF protocol (89) in the firewall.
