Date: Fri, 17 Aug 2001 01:30:54 -0700 From: "Crist J. Clark" <cristjc@earthlink.net> To: =?iso-8859-1?Q?Mat=EEss_Elsbergs?= <matiss@bkc.lv> Cc: freebsd-security@FreeBSD.ORG, freebsd-isp@FreeBSD.ORG Subject: Re: multiple default route Message-ID: <20010817013054.R4232@blossom.cjclark.org> In-Reply-To: <005101c12735$f1087da0$9653949f@lv>; from matiss@bkc.lv on Fri, Aug 17, 2001 at 09:01:35AM -0700 References: <005101c12735$f1087da0$9653949f@lv>
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On Fri, Aug 17, 2001 at 09:01:35AM -0700, Matīss Elsbergs wrote:
> > Is it possible for freebsd to have 2 or more default route?
>
> It is not possible for one network interface. TCP/IP interface can have only
> one default gateway.
If you are saying that having one default route is a limitation of
TCP/IP, you are incorrect. Actually, RFC1122 says,
When there is no route cache entry for the destination host
address (and the destination is not on the connected
network), the IP layer MUST pick a gateway from its list of
"default" gateways. The IP layer MUST support multiple
default gateways.
Note the last sentence. This is one of the few places where I've seen
FreeBSD to be non-compliant with STD RFCs.
--
Crist J. Clark cjclark@alum.mit.edu
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