Patrick,

   The Firewalls should keep on running when their Management is down
 and start logging locally.

   When talking about the SMTP port, if you are using the SMTP Security
 Server port 25 is not used (aka you won't see a port LISTENING on port
 25) but it will use a port > 1024, usually when the system is rebooted
 it is somewhere around 1030-1035.

Met vriendelijke groeten - Bien � vous - Kind regards
Guy ROELANDTS
EMEA HPS Internet Expertise Centre - CCSE-NG
Hewlett-Packard Belgium B.V.B.A./S.P.R.L.
E-mail : [EMAIL PROTECTED]
Tel: +32(02)729.85.61
Fax: +32(02)729.77.65
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-----Original Message-----
From: Mailing list for discussion of Firewall-1 [mailto:[EMAIL PROTECTED] On Behalf Of 
Audet, Patrick
Sent: Monday, March 01, 2004 14:25
To: [EMAIL PROTECTED]
Subject: [FW-1] Mng console goes down, so FW's stop processing SMTP traffic ????


We had a strange problems last week.  We have a Console managing three
firewalls. All are 4.1 SP6 on Sun Solaris.  The console apparently went down
when it stopped talking on the network. The CP stuff kept running, but I
couldn't ping the console and it couldn't ping anything else on it's subnet.
About that time, two separate mail relays, on two separate firewalls on two
separate subnets stopped working -we couldn't telnet on port 25 to known
good mail hosts.  In what little logging I could gather, it looks like
suddenly the source port of the mail relay changed from normal SMTP (Telnet
port 25) to some random high port number range.  It seems that when we
finally got the console back up on the network, suddenly the mail starts
going again.  We can't tell if the mail relays really started talking on odd
ports or if that is just what the FW's thought they saw as traffic.

All systems are running on Solaris boxes.  Shouldn't the FW's just keep on
running even if the console is down? Do they cache the log data, or is that
gone? It doesn't seem that any other access on the FW's was effected - just
the smtp traffic.  The Console is also segmented from the FW interfaces by a
router, so that rules out the network card broadcasting junk and tying up
the FW's.

Any ideas, or theories what may have happened?

Thanks!



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