Date: Wed, 28 Apr 2004 10:28:25 +0400 From: Gleb Smirnoff <glebius@cell.sick.ru> To: "Steven N. Fettig" <freebsd@stevenfettig.com> Cc: freebsd-questions@freebsd.org Subject: Re: Load Balanced Dual T1's - Same default gateway for both CSU/DSU's? Message-ID: <20040428062825.GD15740@cell.sick.ru> In-Reply-To: <408F22DF.9090102@stevenfettig.com> References: <408F22DF.9090102@stevenfettig.com>
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On Tue, Apr 27, 2004 at 10:19:59PM -0500, Steven N. Fettig wrote: S> I know this is possible using a Cisco router with two or dual CSU/DSU's S> for data T1's, but I am struggling to figure out how to get this to work S> with FreeBSD: S> I have a Sangoma Dual T1 (CSU/DSU) card in a FreeBSD box I want to use S> as the router and firewall for. Global Crossing has provided me with S> two T1's that they are "load balancing" on their end (they will not S> employ multilink ppp) - traffic will be distributed "evenly" across both S> T1's - one is not a main vs. backup - they are both mains and if one S> goes down, both go down. I need to somehow tell the gateway/router to S> use two different pipes as the default gateway. I.e. the far side of S> the wan is 123.1.1.161 for T1-1 and 123.1.2.166 for T1-2. I can only S> add a default route for one and not set it to both. Is there a way to S> either use ipfw or simple routing to make this work? otherwise, I guess S> Cisco is it... Surely, the best way ever is multilink PPP. You can also try this hack: route delete default route add 0.0.0.0/1 123.1.1.161 route add 128.0.0.0/1 123.1.2.166 Does Sangoma has a netgraph driver? If it does you can try to use ng_one2many. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE
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