Date: Mon, 04 Oct 2004 19:46:55 +0200 From: "Devon H. O'Dell" <dodell@sitetronics.com> To: Claudiu Dragalina-Paraipan <dr.clau@rdslink.ro> Cc: freebsd-hackers@freebsd.org Subject: Re: 2 inet connections Message-ID: <41618C8F.6090703@sitetronics.com> In-Reply-To: <41618AC7.1040808@rdslink.ro> References: <41618AC7.1040808@rdslink.ro>
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Claudiu Dragalina-Paraipan wrote: > Hi, > > I have this situation: 2 inet connection at 2 different ISP, one with > 2Mbps and one with 128kbps; and a big NATed network behind it, and a > small group of real addresses. > I want to do this: use the first connection as "primary" connection, and > if this fails, go to the second connection, as a backup. > The problem is that none of the ISP will help me in any way, so I have > to find a solution by my own. > > I am trying to avoid the making of a software that watches the > connections and "declare" a line dead when no TCP connection can be > made, thus switching to the secondary/backup line. > I realize that there is no way of using the group of real addresses on > the backup line, since they are not routed, but this is not of such > importance. I need only to provide Internet connection for the NATed > network. > > So... can someone provide me with some good practical advice for this > situation ? > > NOTE: > I want to use FreeBSD for this, so FreeBSD specific advices are welcome. > In fact I don't even think of other solution. > > I realize that this is not a very common situation, and I hope I have > explained it sufficiently clear. > > Thank you very much. > > Best regards, You might want to look at various patches for FreeBSD multipath routing that are available via the mailing lists. They're pretty easy to find with a search for FreeBSD Multimath routing via google. --Devon
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