Can't access internet cross BGP Route

[pochlikimhun]

Hi everyone, based on this diagram, how can PC3 access internet cross BGP Protocol?

 

[pochlikimhun]

Here is my file.

[M02@rt37]

Hello @pochlikimhun 

The key is that your Router 3 attached to PC3 must have the Default Route !

Your Router BGP-1 AS100 has got default route learn by OSPF! So redistribute that default route under its BGP process:

add this command on BGP-1 Router:

router bgp 100
bgp router-id 1.0.0.5
bgp log-neighbor-changes
no synchronization
neighbor 10.11.1.6 remote-as 101
redistribute ospf 1 match external 1 external 2

-- Router BGP-2 should learn now default route via BGP! And this router now has to redistribute this default route with OSPF:

BGP-2 Router:

router ospf 1
router-id 1.0.0.6
log-adjacency-changes
redistribute bgp 101 subnets
network 10.10.5.4 0.0.0.3 area 3
default-information originate

--Router-3 has got now default route and ping forme PC-3 to 8.8.8.8 is ok!

[pochlikimhun]

Thank you so much for your help, I will follow your comment.

[M02@rt37]

You're so welcome

[pochlikimhun]

Thank you so much now PC3 can ping 8.8.8.8