Hi Sergio,
 
Thanks for the reply.  As it happens, it was on the 10.157.62.65 network.
We originally were utilizing traffic to flow the other direction, but NAT'd,
so it was set to a outside interface on the switch.  We removed this, and
then everything worked as expected.  I unfortunately, didn't have access to
that switch to look at it, so it took them a bit to track down the issue.
 
Thanks again.
 
-Lyle

  _____  

From: Sergio Alvarez [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 13, 2007 9:23 AM
To: Dove, Lyle
Subject: Re: [fw1-gurus] ICMP Error


First of all I don't believe you will find a solution within SmartDefense
because the "Product" that generated the drop was not SmartDefense but
"VPN-1 Power/UTM", which means just the firewall module. 

Now, about the situation itself, are you trying to actually ping from one
side of the firewall to the other? Is any of those an "external" interface?
(the src and dst IPs are both 10 addresses, which doesn't give any info) Are
you just concerned about seeing the message but not really having problems
with ICMP traffic generated by you or a particular application? 

ICMP type 0 is an "echo reply", which means the source machine received an
"echo request" at some point and replied with the packet seen and drop by
your firewall. 

Without really knowing anything about the scenario, I'm thinking maybe you
have a routing issue some where, the 10.157.62.65 <http://10.157.62.65/>
machine received the "echo request" form another ip range (not behind your
firewall) but it replied sending the packet to the firewall because it is
its default gateway.   

Regards


On 9/12/07, Dove, Lyle <[EMAIL PROTECTED]> wrote: 

I have been receiving this error, and I can't find where to determine how to
resolve it.  Here's a snapshot from my log of the error.
 

  _____  

Number:                       2549
Date:                            12Sep2007
Time:                            10:44:23
Product:                        VPN-1 Power/UTM
Interface:                      eth3
Origin:                          x.x.x.x
Type:                            Log
Action:                          Drop
Source:                         10.157.62.65
Destination:                 10.88.10.254
Protocol:                       icmp
SmartDefense Profile: Default_Protection
Information:                  ICMP: Echo Reply
                                     ICMP Type: 0
                                     ICMP Code: 0
                                     message_info: ICMP reply does not match
a previous request


  _____  

 
I've looked in my smartdefense tab, and coudn't find where to adjust this.
This might not be where to resolve the issue, but thats where I've started.
Or is this caused by something else.
 
Thoughts?
 
-Lyle
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-- 
Sergio Alvarez
(506)8301342 

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