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RE: unable to ping behind cisco pix firewall even no deny access list
From: "Charlie Winckless" <charliew () netarch com>
Date: Mon, 8 Dec 2003 14:04:31 -0700



-----Original Message-----
From: Hilal Hussein [mailto:hilalma () hotmail com]
Sent: Saturday, December 06, 2003 8:59 AM
To: security-basics () securityfocus com
Cc: sashman () ua fm; sjackson () horizonusa com

Comments in-line, below...

Till now, we are ok, let me list the problems and the crazy issues:

I can browse the internet, telnet, msn, chating, but I CAN"T 
do ping any 
internet host (like yahoo, or cnn) and also some users can't 
access the 
internet web based BANK LOGGIN ACCOUNT, and maybe other 
internet services!


On the PIX, ping (or any ICMP) is not stateful. 
You'll have to explicitly allow the ICMP types that 
you wish into your network with an ACL.

I generally allow echo-reply (depending on the policy of the
customer w.r.t clients being able to ping), unreachable, 
time-exceeded and parameter-problem.

GES.

Moreover, I am using the Kiwi Syslog Daemon software to audit 
logs of the 
pix firewall, but it is not giving anything on the screen as 
it is saying 
"unable to open UDP socket on port 514".
Please tell me, is this issue related to the aboved mentioned 
issue or what?
if not, how to resolve it, knowing that i installed Fport and 
it showed me 
that udp port is already used by the sytem, with no service 
name mentioned.

514/UDP would be syslog. Some other syslog daemon apparently
has it grabbed. If you get Vision from Foundstone, it may
well tell you what's up.

As to the individual sites that are causing issues: do you
have any common theme? Do you have activeX or java filtering
on the PIX enabled?

Regards,
Hilal

-- Charlie

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