Simon,
I have been working on a similar solution. To begin with you
need to
recompile the kernel with Julian's patches that can be found at
http://www.linuxvirtualserver.org/~julian/#routes
and then read
http://www.linuxvirtualserver.org/~julian/nano.txt
I have yet to actually get this to work. Although I know from others
that is does. My problem is I have two SDSL routers doing NAT instead of
the linux router doing nat. That is why I am still having problems with
Julian's patches.
I am working on a double NAT solution but am having some problems I am
still trying to work out with NAT and 2.2 kernels. I am used to 2.4 and
iptables. Although ip route has some nice features that I have yet to
get to work. Like it's nat feature. But there is still ipchains and the
other 2.2 utilities.
Julian has been very gratious to respond directly to emails I have sent
him. Hopefully I will have a working solution soon and when I do will
definetly document and post my results. So far it's been a painful
learing process.
FYI, I am using a 2.2.21 kernel from kernel.org with the guts of the
Linux Router Project 2.9.8 with some other modifications.
Good luck, if you are able to achieve a working solution please post
your results. I may have a few questions as will others in the future.
Also you will need to setup split DNS here is another good link.
http://www.samag.com/documents/s=1824/sam0201h/0201h.htm
On Sat, 2002-06-01 at 16:23, Simon Matthews wrote:
> I should add that my box is running Redhat 6.2 with a 2.2.19 series
> kernel (it runs the standard RH kernel, but I can re-compile from the
> standard kernel sources if required).
>
> Simon
>
> ---------- Forwarded message ----------
> Date: Sat, 1 Jun 2002 16:21:59 -0700 (PDT)
> From: Simon Matthews <simon@paxonet.com>
> To: lartc@mailman.ds9a.nl
> Subject: Failover with 2 ISP's and one ethernet card?
>
> I am trying to figure out how to configure up a failover setup. I have 2
> ISP's:
> 1. Wireless -- up to 2MPS
> 2. Fractional T1 - 384Kbps
>
> So, I want the wireless interface to be used in preference. The T1
> connection comes into a Cisco 1605R router and from there into my external
> subnet. The Wireless connection comes straight in (I have no control over
> the ISP's router) to the external subnet. The wireless ISP and T1-ISP
> provide different IP addresses to me. Furthermore, the wireless ISP does
> not provide any routing protocol data (RIP, OSPF, etc) into my subnet.
>
> My proxy/mail/DNS box has one physical interface, and I want to define
> multiple aliases, one for the address provided by each ISP.
>
> Furthermore, I want my proxy box to failover to using the T1 connection if
> the wireless connection goes down.
>
> I have tried to configure this, but the iproute2 commands do not seem to
> accept alias names for the device (eg. eth0:2).
>
> Can someone tell me how I should configure this setup?
>
> Thanks!
> Simon
>
>
> _______________________________________________
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>
--
Sincerely,
William L. Thomson Jr.
Support Group
Obsidian-Studios Inc.
439 Amber Way
Petaluma, Ca. 94952
Phone 707.766.9509
Fax 707.766.8989
http://www.obsidian-studios.com
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