Re: Problem of blocking ICMP packets

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On Wed, 16 Jun 2004 11:00:29 PDT, Sally Floyd said:

> to the browser.  Presumeably if the web server wanted to use something
> like QuickStart, it could have the firewall configured to allow the
> IP QuickStart Option not to be blocked on the outgoing SYN packet?

Given the number of times we've had IWF reports that basically boil
down to 'ntp-[12].vt.edu is probing me from port 123", and even more
interestingly the number of times we've been asked by the remote user
why their machine is trying to contact ntp-1.vt.edu, I have to classify
the concept that "People will remember to put appropriate punchouts
in their firewall when they deploy a service" as "wishful thinking".

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