after two days of awaiting "moderation" i figured i would just repost from
the account i'm subscribed from. sigh.

- brett

---------- Forwarded message ----------
Date: Wed, 3 Apr 2002 08:37:53 -0800 (PST)
From: Brett Eldridge <[EMAIL PROTECTED]>
To: Burke McCrory <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Re: PIX and OSPF updates

On Fri, 29 Mar 2002, Burke McCrory wrote:

> I am trying to put a PIX into a network that uses OSPF between its
> routers.  So far I haven't been able to find a way to allow the OSPF
> updates to pass through the PIX.  Does anyone have any ideas or
> suggestions?  Thanks.

the problem you are running into is the OSPF uses multicast by default and
the pix won't (and shouldn't) route multicast.

one solution i have used to this solve problem is to force OSPF to use
NBMA mode (effectively point-to-point routing updates). each OSPF node is
told a specific neighbor to send updates to. i've used both GateD and IOS
in these situations (and both with MD5 auth). i'm not sure if NBMA can be
used between different subnets though.

i haven't tried this through the pix and i'm not sure the pix can be told
to allow ip protocol 89 between specific IP addresses on different
interfaces.


- brett


_______________________________________________
Firewalls mailing list
[EMAIL PROTECTED]
http://lists.gnac.net/mailman/listinfo/firewalls

Reply via email to