I have a problem with my lab work. I need to provide network routing with ospf. My Net has the following layout:
So... When I start 3 virtual machine with all working interfaces, everything is ok - routing tables is right, all connections work.
But when I put down IF1 on R3 machine, after 120 sec routing tables on R1 and R2 have changed. But even after 1 hour routing tables on R2 doesn't change, and I have problem with routing to 172.16.3.0 network. I know in OSPF there are something like "flooding" routing - first wave of changing goes after 120 sec, and next step - after something like 8-9 min...
Please, help to make ospf work fine!
Here is conf files of
ospf.conf for R2 machine (for others all conf the same, exept IP addresses, network, hostsname and router id.
hostname Router password zebra enable password zebra interface lo description loopback interface em0 ip address 192.168.9.3/24 interface em1 ip address 172.16.2.1/24 interface em2 ip address 172.16.1.2/24
hostname R2 password zebra enable password zebra interface em0 no ip ospf authentication-key interface em1 no ip ospf authentication-key interface em2 no ip ospf authentication-key router ospf ospf router-id 0.0.0.2 network 192.168.9.0/24 area 0 network 172.16.2.0/24 area 0 network 172.16.1.0/24 area 0 redistribute connected
Note: For all machines - em0=IF3, em1=IF2, em2=IF3
UPDATE: Thanks... Problem solved. I just add link-detect corectly... Sorry, I temporally can't vote for answer...