Date: Sun, 8 Jul 2001 01:39:49 -0700 From: "Crist J. Clark" <cristjc@earthlink.net> To: freebsd-questions@FreeBSD.ORG Subject: Re: IPFW/NATD or Cable Modem Trouble?? Message-ID: <20010708013949.A309@blossom.cjclark.org> In-Reply-To: <20010707231231.A22041@acadia.ne.mediaone.net>; from leblanc%2Bfreebsd@acadia.ne.mediaone.net on Sat, Jul 07, 2001 at 11:12:31PM -0400 References: <001201c10662$6043c3e0$0201a8c0@goldenrod.net> <20010707231231.A22041@acadia.ne.mediaone.net>
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On Sat, Jul 07, 2001 at 11:12:31PM -0400, Louis LeBlanc wrote: > No where near being a FreeBSD or network guru, but it seems to me that > if the gateway for your ed2 interface goes down, and you are trying to > telnet to the IP (or a hostname associated with the IP) of the ed2 > interface, it *will* route through the ed1 interface to ed2, but ed2 > will have to be able to reach its gateway (the router that cannot be > reached) in order to accept any connections. If you telnet to a > hostname or the IP associated with ed1, it should be fine. > > Keep in mind, I am assuming you are connecting from within your > network (ed1 side) to your 'gateway' (connecting your internal network > to the cable modem), but actually telnetting to the gateway (ed2) > interface. > > To my understanding, this is normal behavior. I have seen it before > on various unices. I doubt NAT will change this behavior either. No. FreeBSD, like many operating systems uses the "weak ES model" (see RFC1122). It will accept datagrams with destination address that matches the destination on any interface. -- Crist J. Clark cjclark@alum.mit.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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