Re: BGp Multihome Problems

Is there any MTU issue when the client try to use preferred link?

Somehow the Http packets are getting chopped up...

Regards,
Nish

are:you::ipv6:ready?

On 6 Nov 2010, at 17:36, Marcin Zgola <MZgola_at_netrixllc.com> wrote:

> problem with my BGP multihomed Setup.
>
> I have a 7200 series router that connects via ebGP to verizon, and has another iBGP connection via 6500 to another 7200 which connects eBGP to SPrint.
>
> verizon - ebgp -- 7200 -- ibgp 7200 --- ebgp sprint
>
> physically
>
> 7200 --- 6500 --- 7200 (internally)
>
> now i have a client with couple of T1 lines connected to 7200 (verizon).
>
> When i look at the BGP table destined for comcast IP address (AS numbers) connection via Sprint is preferred. But comcast packets to reach my customer come through verizon because i am advertising /24 of the client via verizon. I also advertise /21 of that subnet via both.
>
> Here is my problem. connections to website of the client do not work , but VPN works , and lots of stuff can get back to the client using TCP and UDP.
>
> When i force 7200 to use verizon for comcast, the client websites work fine.
>
> Any ideas?
>
>
>
>
> Marcin Zgola
> Internetwork Lead
> CCIE #18676
> Netrix, LLC
> http://www.netrixllc.com
> Ph. 847-964-5300
> Fax.: 847-964-5350
>
>
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Received on Sun Nov 07 2010 - 09:01:23 ART