LinuxSA Mailing list archives

  From: Alex Garner <alex@netcraft.com.au>
  To  : Richard Russell <richardrussell@mail.com>
  Date: Mon, 8 Jan 2001 19:03:19 +1030 (CST)

Re: ping

> >  > this is so simple but i just dont know...  when you ping a
> >  > system, which port (if any) is it hitting?
> >
> > It isn't.  It's using ICMP, which doesn't entertain the concept of
> > "ports".
> 
> my understanding is that ICMP is on the same level as TCP and UDP.

As far as I was aware, ICMP was considered network layer (layer 3) and
UDP and TCP are transport layer (layer 4)?

Cheers

Alex!


-- 

Alex Garner <alex@netcraft.com.au>

NetCraft Australia
Phone (08) 8338 0888
http://www.netcraft.com.au

"Don't tell me your problems!" - David Bennett, 1997

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