[ale] Traceroute vs tracert

[Token]

Also, note that windows tracert uses a 92 byte packet which some ISP's
are filtering.  I know that Global Crossing does.  Can't tell ya how
many times have had customers call up complaining that they their traces
are dying only to have them trace from a router or a *nix box and it
work fine.

--chip

-----Original Message-----
Steele From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf
Of Joe Steele Sent: Saturday, November 29, 2003 6:05 PM
To: Atlanta Linux Enthusiasts
Subject: RE: [ale] Traceroute vs tracert

On Saturday, November 29, 2003 11:18 AM, Robert L. Harris wrote:
>
>   I know there's a difference in how Linux/Solaris/Unix traceroute
works
> versus how windows tracert uses concerning the protocol type, etc.
> Anyone have a good link to this difference?

Windows tracert only uses ICMP echo requests, whereas traceroute can 
either use UDP datagrams (by default) or ICMP echo requests 
(controlled by the -I option).  Other than that, the two programs 
work similarly by incrementing the TTL field in order to elicit an 
ICMP "time exceeded" response from each host along the route.

--Joe
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