Wireshark-users: Re: [Wireshark-users] need to find what blocks icmp
From: Kok-Yong Tan <ktan@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 20 Aug 2009 00:49:19 -0400
Make sure there isn't a third party firewall installed on the machines that nobody thought to tell you about. This may sound stupidly obvious but I once had a similar issue and already had the Windows firewall off on the machine so I couldn't figure out why nothing seemed to be connecting. I later noticed that the user had self-installed (without informing me) a third party firewall and it was causing all my grief. Even he had forgotten he had installed it, let alone documented the fact. Never underestimate the trouble a user/junior administrator with admin access can get up to...

On Aug 19, 2009, at 23:52, Boris Blinchevsky wrote:

Windows Firewall is off on both machines.


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