Hi every body.
It has been a long while since I came to this forum last time.
1) Here is my setup:
R1-area 0-----R2---area 1-----R3
R1 has loopback addresses: 10.1.1.1/24 10.1.2.2/24 ( these loopback addresses are configured with network type point to point)
R2 is ABR.
The goal is the summarize 10.1.1.0/24 10.1.2.0/24 as 10.0.0.0/8 and inject it into area 1 at ABR.
R2 configuration is shown below:
router ospf 1
router-id 2.2.2.2
log-adjacency-changes
area 1 range 10.0.0.0 255.0.0.0
network 199.199.199.2 0.0.0.0 area 0
network 200.200.200.2 0.0.0.0 area 1
Routing table at R2 is shown below:
C 200.200.200.0/24 is directly connected, Serial0/1
C 199.199.199.0/24 is directly connected, Serial0/0
10.0.0.0/24 is subnetted, 2 subnets
O 10.1.2.0 [110/65] via 199.199.199.1, 00:10:29, Serial0/0
O 10.1.1.0 [110/65] via 199.199.199.1, 00:10:29, Serial0/0
The problem is R2 is not summarizing the following routes as 10.0.0.0/8 and injecting it into area 1 even though" area1 range 10.0.0.0 255.0.0.0 " is configured.
O 10.1.2.2
O 10.1.1.0
2) My second question is can we summarize external routes at abr? for example if R2 is abr and has following routes, can we perform summarization at abr? I understand Such summarization should be done at asbr but iam just curious.
OE2 199.199.198.0/255
O E2 199.199.199.0/255
Thanks and have a great week.
