Re: Problem of blocking ICMP packets

ietf

2004-05-10 11:16:16

On May 9, 2004, at 19:33, Dean Anderson wrote:

I have only heard that those that block ICMP echo have had
problems.

Nothing to do with ICMP echo. It's blocking ICMP unreachable,fragmentation needed that causes problems.

ICMP unreachables related to known connections should be allowedthrough the firewall.



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