Date: Thu, 25 Jun 1998 23:37:01 +0200 (CEST) From: Blaz Zupan <blaz@gold.amis.net> To: Doug White <dwhite@resnet.uoregon.edu> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: IP redirects Message-ID: <Pine.BSF.3.96.980625233307.317A-100000@gold.amis.net> In-Reply-To: <Pine.BSF.3.96.980625120603.1471s-100000@resnet.uoregon.edu>
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> > I know about the sysctl variable "net.inet.ip.redirect", which one can use > > to inhibit FreeBSD _sending_ IP redirects. But is there a variable to > > Why? Do you have a misbeahving NT box? I have a machine connected to a subnet where I have two routers - one is a Cisco connected to our main satellite link, the other is a Livingston OR-ST which is the ISDN backup link. When we switch over to the backup link, the redirections start piling up on the FreeBSD box, because the default route points at the Cisco. When the Cisco comes back up, all those redirections cause havoc - the OR-HS's default route points to the (now down) ISDN link, which means most of the traffic from the BSD box goes to a nonworking link. There are (AFAIK) three solutions: 1. Run gated on the FreeBSD box (which I would rather not do) 2. Put the Cisco and the OR-HS into another subnet (which I don't like) 3. Inhibit IP redirects (which somebody suggested could be done with ipfw) I think I'll pick number 3). Best regards, Blaz Zupan, blaz@medinet.si, http://home.amis.net/blaz Medinet d.o.o., Linhartova 21, 2000 Maribor, Slovenia To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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