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Re: Cisco ASA code quirk
From: "Farrukh Haroon" <farrukhharoon () gmail com>
Date: Fri, 5 Dec 2008 14:42:26 +0300

The ASA uses regular subnet masks in the route command and not wildcard
masks, you need to do this now:

no route int2 0.0.0.0 0.255.255.255 172.16.12.8 10
route int2 10.0.0.0 255.0.0.0 <http://0.255.255.255/> 172.16.12.8 10

It would also be nice to change this:

no route int1 0.0.0.0 0.0.0.0 172.5.3.47 10
route int1 0.0.0.0 0.0.0.0 172.5.3.47

Regards

Farrukh

On Thu, Dec 4, 2008 at 8:08 AM, Terry Clark <ts.clark () yahoo com> wrote:

I'm not very familiar with firewalls, but I've inherited a network where
the only networking devices *are* firewalls.  I tried to make a change
tonight, as follows:

route int2 10.0.0.0 0.255.255.255 172.16.12.8 10
no route int2 0.0.0.0 0.0.0.0 172.16.12.8 1

The existing routes were:

route int1 0.0.0.0 0.0.0.0 172.5.3.47 10
route int2 0.0.0.0 0.0.0.0 172.16.12.8 1

Just to finish the story, I was trying to get private traffic to go across
int2, and public (everything else) traffic across link 1, which - as
configured - is dark copper until int2 blows up.

Anyway, when I made the change, the firewall responded to a "sh run route"
with:

route int2 0.0.0.0 0.255.255.255 172.16.12.8 10
route int1 0.0.0.0 0.0.0.0 172.5.3.47 10

Obviously not what I wanted, and the end result was no change in traffic
patterns.  The only thing I can think of that might explain it is if the
firewall is routing classfully, but it's got a /30 interface, so I know
that's not the case.

What gives?

TIA,
Terry




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