[c-nsp] bgp weird issue

[Michael K. Smith]

Hello John:


On 11/30/08 10:32 AM, "mm-tech" <mm at math.pub.ro> wrote:

<snip>

> The issue is after I configure the iBGP relationship between Router1 and
> Router2: connectivity to the 62.217.X.X/29 subnet on Router1 is lost. It
> cannot be pinged anymore from outside. The 91.195.X.X/23 is announced
> correctly through both ISPs and any IP in this /23 subnet is pingable from
> outside. They only problem is with the 62.217.X.X/29 block that becomes
> unreachable after configuring the iBGP relationship and I don't understand
> why this is happening.
> 
> Sorry for the long post and I hope you'll give me some hints -:)
> 
> Thanks,
> John
> 

How is the /29 configured on router 1?  If it's being statically routed from
your ISP, then you need to have it in your IGP somehow.  Something simple
would be:

Interface x/x
Ip address 62.217.x.x 255.255.255.248

Router ospf 10
Redistribute connected subnets

More information is needed, I'm afraid.

Regards,

Mike