Re: [Etherape-users] found a crash

[Juan T. <to...@us...>]

On Tue, May 15, 2001 at 08:12:07AM +0000, Matthew Franz wrote:
> > > Other point : you put the ICMP protocol in the layer 4. I am not agree with 
> > > that. ICMP use and is a part of IP. It's layer 3. Each IP implementation must 
> > > have ICMP.
> > ICMP is part of the TCP/IP suite of protocols, yes, but ICMP doesn't travel
> > atop any IP packet, but rather directly over the Ethernet frame.

Perhaps what I was trying to say (and then I got mixed up) is that 
not everytime the position a protocol has in the stack will relate
directly to the function stated in the OSI model.

And the, because of the way that EtherApe identifies protocols it would be
pretty difficult to fix it. Maybe I should state more clearly that
the protocol stack level dropdown does not intend to be OSI correct, and
the examples are there just for reference.

More than ICMP, what bothers me is that in FDDI and Token Ring, there
is always the LLC header over ther 802 header, and that is being
counted as a protocol stack level. That means that IP is showing in the
fourth level, instead of the third.

Regards,
Juan.

-- 
EtherApe, a graphical network monitor modeled after etherman
http://etherape.sourceforge.net/