From: Becky Qiang (becky.qiang@wincomsystems.com)
Date: Wed Sep 11 2002 - 19:26:04 GMT-3
that's my point. I looked back at my message and missed a 'never'. As you
may see my in my next sentence....Becky
----- Original Message -----
From: "Howard C. Berkowitz" <hcb@gettcomm.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, September 11, 2002 1:24 PM
Subject: Re: non-ICMP ping and non-ICMP traceroute
> At 11:04 AM -0700 9/11/02, Becky Qiang wrote:
> >I've heard of such thing. Both ping and traceroute command in Cisco CLI
are
> >developed based on ICMP...Becky
>
> Ping is completely ICMP. Traceroute, in almost everyone's
> implementation except Microsoft, is half UDP and half ICMP.
>
> In the example below, I've skipped repeated sends in the interest of
clarity.
>
> Ping Traceroute
>
> 1. Send ICMP Echo Request 1. Start with UDP packet with a high,
> undefined port and TTL=1.
>
> 2. Receive ICMP Echo Reply from 2. Receive ICMP TTL Expired from first
hop
> destination
>
> 3. Send UDP packet with a high,
> undefined port and TTL=2.
>
> 4. Receive ICMP TTL Expired from 2nd
hop
>
> ...continue,increasing TTL
> >
> >
> >----- Original Message -----
> >From: "Ravi Chandran" <s_ravichandran@hotmail.com>
> >To: <ccielab@groupstudy.com>
> >Sent: Wednesday, September 11, 2002 9:09 AM
> >Subject: non-ICMP ping and non-ICMP traceroute
> >
> >
> >> Hi everyone,
> >>
> >> While in a telenet session on a Cisco switch, can I generate a
non-ICMP
> > > ping and non-ICMP traceroute from the command line?
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