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Subject: RE: Setup/routing question with cipe
From: "Neulinger, Nathan" <nneul,AT,umr,DOT,edu>
Date: Thu, 9 Aug 2001 21:59:35 +0200

I think I found out how to do this with the advanced routing feature in
recent kernels, it can do source based routing. 

That should make things a WHOLE lot simpler.

I'll post a summary of my configuration when I have it working, as I think
it might be a useful example.

-- Nathan

> -----Original Message-----
> From: Neulinger, Nathan [mailto:nneul,AT,umr,DOT,edu
> Sent: Thursday, August 09, 2001 2:33 PM
> To: 'cipe-l,AT,inka,DOT,de'
> Subject: Setup/routing question with cipe
> 
> 
> To start off with - I have the cipe link up and running, and 
> a route from
> the server pkcipe side to the client (i.e. ping shows up on 
> client). The
> goal is to make use of a VPN to have use of static IP addresses. 
> 
> Server: 
>       CIPE-10.0.2.1
>       NET-A
> 
> Client-LAN:
>       NET-B
> 
> Client-WAN:
>       CIPE-10.0.1.1
>       NET-C (cable modem)
> 
> LanStation:
>       NET-C
> 
> 
> I have a single semi-dynamic IP on Net-C that virtually never 
> changes. It is
> a DHCP assigned address and default route.
> 
> I would like ALL traffic to go over the CIPE link to the server.
> 
> In my if-up script on the server, I route LAN/NET-B traffic 
> to 10.0.1.1, and
> set up the proxy arp. 
> 
> Would I now need to:
>       a. Drop the default route on the Client going to 
> cable-modem gateway
>       b. Add a single host route for the Server pointing at the
> cable-modem gateway
> 
> Is there any nice way of doing this other than hardwiring the 
> cable modem
> gateway and hardwiring the drop of the script?
> 
> I'd really prefer to be able to say:
>       On Client: Route all traffic from Net-C over CIPE, but 
> everything
> else use default.
> 
> i.e. any traffic from the router itself would go over default 
> route, but the
> 'forwarded' traffic would go over cipe. Is there any way to 
> do this with
> ipchains rules?
> 
> Suggestions? Am I on the right track here?
> 
> -- Nathan
> 
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul,AT,umr,DOT,edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
> 
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