Hi Ross - 

On Fri, Feb 05, 2010 at 12:46:01PM -0500, Ross Vandegrift wrote:
> I'm working on a lab configuration that involves three ScreenOS
> 6.1.0r3.0 boxes running BGP to JUNOS routers.  All BGP sessions are
> between loopback interfaces, Block Intra-zone traffic is disabled for
> Untrust, all boxes have default policy.  Two of the firewalls are
> working normally.
> 
> On the third, ScreenOS adamantly refuses to open BGP on the correct
> interface.  I've tried:
>       1) Killing off all of the BGP config and recreating it.
>       2) Rebooting the box.
>       3) Upgrading ScreenOS to the exact version running on the two
>       working firewalls.  Here's the relevant config bits:
>
> [...]
> 
> Has anyone seen this?

Can you try adding the "outgoing-interface loopback.1" to your neighbor
statement?

set neighbor 10.2.30.254 remote-as 65001 src-interface loopback.1 
outgoing-interface loopback.1

That being said, I did see something like this (debug messages looked
similar, at least) a few years back when trying to get ScreenOS to
connect to a Quagga box of mine.  I never got ScreenOS to initiate the
connection successfully - I had to set BGP to passive and let the Quagga
box initiate the connection, which ended up working, strangely enough.
It's not a great solution, but got things working at the time.

On the other two firewalls that /are/ working, do you know who initiated
the BGP connection?  I'm wondering if JUNOS happened to initiate the
connection first, which is why they're working.

Also, I ran into some other problems with ScreenOS BGP (somehow, upon
connection failure, ScreenOS would take 40+ minutes to reconnect to the
neighbor) that were resolved with an upgrade to 6.1.0r6.0.  I'd
recommend grabbing the latest 6.1.0 just in case.

Good luck!

- Mark

-- 
Mark Kamichoff
[email protected]
http://www.prolixium.com/

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