[j-nsp] Strange juniper - cisco MD5 problem

[Wei Keong]

Hi Waj,

I'm using an ATM interface with MTU 4470... should i reduce it to 4450 
just to be on the safe side?

Rgds,
Wei Keong

On Wed, 28 Apr 2004, Niaz, Wajahat wrote:

> Set the MTU to 1500 and see if the session is established. I have seen this
> problem while implementing MD5 between a juniper and cisco and it goes away
> after the MTU on the cisco is set to 1500.
> Waj
> 
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Wei Keong
> Sent: Wednesday, April 28, 2004 12:58 PM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] Strange juniper - cisco MD5 problem
> 
> Hi guys,
> 
> I've come across a strange problem while implementing MD5 auth on
> bgp between a juniper (5.6R2.4) & cisco (12.1.9a) router. The bgp for
> the juniper side is in a non-main routing instance. I've configured the
> MD5 password on both routers, but the bgp can't be established.
> 
> 
> On the juniper router, the log shows a lot of these:
> tcp_auth_ok: Packet from x.x.x.x:29594 unexpectedly has MD5 digest
> 
> On the cisco router, the log shows these:
> %TCP-6-BADAUTH: No MD5 digest from x.x.x.x:2124 to x.x.x.x:179
> 
> 
> I've tried to first configure MD5 on juniper, shut reset cisco bgp
> session, and then configure MD5 on cisco. But, this did not help either.
> 
> The strange thing is, the moment i move the bgp group in juniper to the
> main routing instance, the bgp session (with MD5) established after a
> few seconds... Has anyone encounter similar problem? What could be the
> cause?
> 
> Thanks,
> Wei Keong
> 
> 
> 
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