From owner-freebsd-questions Tue Aug 20 07:22:33 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id HAA01821 for questions-outgoing; Tue, 20 Aug 1996 07:22:33 -0700 (PDT) Received: from alpha.xerox.com (alpha.Xerox.COM [13.1.64.93]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id HAA01815 for ; Tue, 20 Aug 1996 07:22:30 -0700 (PDT) Received: from crevenia.parc.xerox.com ([13.2.116.11]) by alpha.xerox.com with SMTP id <14674(9)>; Tue, 20 Aug 1996 07:21:57 PDT Received: from localhost by crevenia.parc.xerox.com with SMTP id <177517>; Tue, 20 Aug 1996 07:21:49 -0700 To: mike@networx.ie cc: FreeBSD Support Subject: Re: Does FBSD 2.1 honour ICMP redirects? In-reply-to: Your message of "Tue, 20 Aug 96 02:35:20 PDT." Date: Tue, 20 Aug 1996 07:21:40 PDT From: Bill Fenner Message-Id: <96Aug20.072149pdt.177517@crevenia.parc.xerox.com> Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk In message you write: >Even if what you say *is* the situation in my particular case, and he is >wrong in sending the Redirects, still why doesn't FreeBSD honour them? >After all, the router he's redirecting me to *is* on the same IP network: > > me=194.125.135.89 > mypeer=194.125.135.23 > peer_says_redirect_to 194.125.135.1 If you decided to start sending to 194.125.135.1 instead, would you still be sending down the PPP link or would you use another link? If the PPP link, then you can't actually do anything (since the IP address of the router is only used to get the link layer address and there's only one machine on the other end of the PPP link). If not, then RFC1122 says to ignore the redirect. The router on the other end of your PPP link is asking you to do something impossible; it's asking you to not use it as a router to get to things that are beyond it. Bill