Ethereal-users: Re: [Ethereal-users] No source and destination port for ICMP protocols??

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From: Bjorn Townsend <eriktown@xxxxxxxxx>
Date: Tue, 27 Sep 2005 14:24:55 -0700
For the same reason that the IP protocol does not have a source and
destination port -- it doesn't apply. Only the TCP and UDP protocols
have source and destination ports, and they're not even in the same
layer of the OSI model (layer 3 vs. layer 4).

This is like asking "Why doesn't HTTP have a source and destination
port?" -- meaningless.

On 9/27/05, JS <fedevaps@xxxxxxxx> wrote:
> Why is it that an ICMP protocol does not have any
> source and destination port?
>
>
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--
Bjorn Townsend | eriktown@xxxxxxxxx