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Can't ping other BGP AS

kdespiegeleir
Beginner
Beginner

Dear,

I'm trying out a configuration with BGP and OSPF. See below

design.png

I can't ping from R5 to R4 and R1 and reverse. Or is it that when I'm in another AS I can't ping? I tried to add a route to subnet 3.3.3.0/24 but it doesn't work either.

### IP ROUTE from R5 ###

      2.0.0.0/24 is subnetted, 1 subnets

B        2.2.2.0 [20/0] via 3.3.3.1, 01:17:55

      3.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C        3.3.3.0/24 is directly connected, FastEthernet1/0

L        3.3.3.2/32 is directly connected, FastEthernet1/0

      4.0.0.0/24 is subnetted, 1 subnets

B        4.4.4.0 [20/2] via 3.3.3.1, 01:14:49

### IP ROUTE from R1 ###

      2.0.0.0/24 is subnetted, 1 subnets

O IA     2.2.2.0 [110/2] via 4.4.4.2, 00:28:37, FastEthernet5/0

      4.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C        4.4.4.0/24 is directly connected, FastEthernet5/0

L        4.4.4.1/32 is directly connected, FastEthernet5/0

The configuration can be found in attachment.

I tried to add the routes/networks in BGP on the R1, R4 and R3 but the ICMP doesn't work either.

This is the show version:

R5#show version

Cisco IOS Software, 7200 Software (C7200-ADVENTERPRISEK9-M), Version 15.2(4)S3, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Fri 19-Apr-13 05:11 by prod_rel_team

ROM: ROMMON Emulation Microcode

BOOTLDR: 7200 Software (C7200-ADVENTERPRISEK9-M), Version 15.2(4)S3, RELEASE SOFTWARE (fc1)

Thanks for the help,

Koen

1 Accepted Solution

Accepted Solutions

Hi,

You must get the 3.3.3.0/24 network into OSPF so here are 2 ways to achieve this.

on R3:

route-map REDIS_CONN

match interface f5/0

router os 1

redistribute connected subnets route-map REDIS_CONN

another way:

router os 1

netw 3.3.3.0 0.0.0.255 a 1

passive-interface f5/0

Regards

Alain

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View solution in original post

5 Replies 5

cadet alain
Mentor
Mentor

Hi,

R1 and R4 have no route back to 3.3.3.0 network. you can use static routes or redistribute this connected interface into OSPF in your AS.

Regards

Alain

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