Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!ucbvax!PARK-STREET.BBN.COM!tmallory
From: tmallory@PARK-STREET.BBN.COM
Newsgroups: comp.protocols.tcp-ip
Subject: Re: ICMP's & IP src addrs
Message-ID: <8809151450.AA23101@ucbvax.Berkeley.EDU>
Date: 15 Sep 88 13:04:17 GMT
References: <23634@hi.unm.edu>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 17



> a `ping {-t,-n,-i,} 129.24.15.255' sometimes yields 129.24.15.255 as
> the src IP address on the packet that is being returned to me and
> sometimes the ping yields 129.24.#.# as the src IP address where #.# is
> the correct IP address of the responding machine.


Flame:  An ICMP echo to a broadcast address should get no response!  What an
incredibly obnoxious thing to do!

Opinion: If a reply is sent, then the best response is to insert the IP
address of the interface over which the packet was received in the source
address field of the reply.

Tracy Mallory
BBNCC