[j-nsp] BGP session is not coming up

[Matthias Gelbhardt]

Hi!

After deleting the local-address (and testing with multihop) I get

Jul 22 09:13:41.322465 advertising receiving-speaker only capabilty to  
neighbor x.x.x.x (External AS xx)
Jul 22 09:13:41.323342 bgp_send: sending 59 bytes to x.x.x.x (External  
AS xx)
Jul 22 09:13:41.323954
Jul 22 09:13:41.323954 BGP SEND x.x.x.x+52277 -> x.x.x.x+179
Jul 22 09:13:41.325172 BGP SEND message type 1 (Open) length 59
Jul 22 09:13:41.327835
Jul 22 09:13:41.327835 BGP RECV x.x.x.x+179 -> x.x.x.x+52277
Jul 22 09:13:41.329110 BGP RECV message type 1 (Open) length 29
Jul 22 09:13:41.329866
Jul 22 09:13:41.329866 BGP RECV x.x.x.x+179 -> x.x.x.x+52277
Jul 22 09:13:41.331374 BGP RECV message type 3 (Notification) length 21

The strange thing: That has stopped working out of the blue. As this  
is a provider, we are unable to get the other side.

Matthias

Am 22.07.2009 um 09:04 schrieb Muhammad Aamir:

> Dear matthias,
>
> Have u tried this with "multihop", Because you have used local- 
> address in your ebgp config. If local address is your loopback  
> interface then you need to configure multihop. Also please share the  
> remote end config as well if possible.
>
> Regards.
>
> Aamir
>
> On Wed, Jul 22, 2009 at 12:55 PM, Matthias Gelbhardt <matthias at commy.de 
> > wrote:
> Hi!
>
> We have a problem with a BGP session. The session is not coming up,  
> and I dont know why. It is a eBGP session:
>
> Log:
>
> Jul 22 08:30:08  muenster /kernel: tcp_auth_ok: Packet from x.x.x.x: 
> 179 missing MD5 digest
>
> tracelog:
>
> Jul 22 08:50:16.426122 bgp_connect_complete: error connecting to  
> x.x.x.x (External AS x): Socket is not connected
>
> tcpdump;
>
> 08:49:07.632649 Out IP x.x.x.x.60582 > x.x.x.x.179: S  
> 594093001:594093001(0) win 16384 <mss 1460,nop,wscale  
> 0,nop,nop,timestamp[|tcp]>
>
> config:
>
> group external {
>    type external;
>    neighbor xx {
>        description uplink_;
>        local-address xx;
>        import import_bgp_;
>        inactive: authentication-key "$9$u-xxx"; ## SECRET-DATA
>        export [ export_prepend export_bgp_external ];
>        peer-as xx;
>    }
> }
>
> Any ideas?
>
> Leaving the MD5 does not work, I even have restartet the routing  
> process with no luck.
>
> Matthias
>
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