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ospf

sarahr202
Level 5
Level 5

Hi every body

how is every one?

I set  up the lab as shown below.

R2--------------------R3

both are connected by fast ethernet.

R3 config:

loopback1  10.10.10.10/24

fo/0 200.200.200.3/24

ospf1

network 200.200.200.0  0.0.0.255 area 0

network 10.0.0.0 0.255.255.255 area 0

====================================

The problem is  r2 is learning 10.10.10.0  as

0 10.10.10.10 via 200.200.200.3

It should have learned the route 10.10.10.0/24 via 200.200.200.3

i attached the config and output of show ip route on r3 in a file.

Thanks and have a nice week.

1 Accepted Solution

Accepted Solutions

cadet alain
VIP Alumni
VIP Alumni

Hi,

By default OSPF advertises loopback networks as /32 and if you want to advertise the correct prefix length then you can change the

ip ospf network type to point-to-point under the loopback interface with the following command: ip ospf network point-to-point

Regards.

Alain.

Don't forget to rate helpful posts.

View solution in original post

1 Reply 1

cadet alain
VIP Alumni
VIP Alumni

Hi,

By default OSPF advertises loopback networks as /32 and if you want to advertise the correct prefix length then you can change the

ip ospf network type to point-to-point under the loopback interface with the following command: ip ospf network point-to-point

Regards.

Alain.

Don't forget to rate helpful posts.