[ale] linking 2 lans via PPP ?

[Bob Toxen]

One LAN is the client PPP, one is the server, and you just need a route
command on each end to route through ppp0.  Of course, a VPN would be a
safer solution.

Bob Toxen
bob at verysecurelinux.com               [Please use for email to me]
http://www.verysecurelinux.com        [Network&Linux/Unix security consulting]
http://www.realworldlinuxsecurity.com [My book:"Real World Linux Security 2/e"]
Quality Linux & UNIX security and SysAdmin & software consulting since 1990.

"Microsoft: Unsafe at any clock speed!"
   -- Bob Toxen 10/03/2002

On Tue, Jan 06, 2004 at 08:53:11PM -0500, Christopher Bergeron wrote:
> Hi guys - I have a feeling this is an easy one; but I can't figure it out.
> 
> I'm trying to link 2 lans over the internet using pppd.  I'm NOT trying 
> to tunnel it through SSH, however.  It's an odd configuration, and 
> security isn't an issue here, so I don't need the ssh tunnel.  
> Basically, I have 2 LANs that I want to link via PPP.  Each LAN has its 
> own static gateway address.  I'd like to link them together.  Both LANs 
> are numbered differently (ie. one is 192.168.3.0 and the other is 
> 192.168.4.0).  I'd like to link them as such:
> 
> LAN1 (192.168.3.0) - Gateway (201.232.1.2) - Internet - Gateway 
> (12.31.212.69) - LAN2 (192.168.4.0)
> 
> I could easily handle the routing issues that are involved; however, I 
> just can't seem to find simple and straighforward info on how to do PPP 
> in this configuration.  The PPP howto has a 1 paragraph "chapter" on 
> linking LANs with PPP, but it simply says that the howto can show you 
> how to do it.  But it doesn't -  it only shows dialup/chat style PPP 
> connections.
> 
> I just want to do a simple "pppd noauth ... " command that I can use to 
> create a link.
> 
> Can anyone shed any light on this for me?
> 
> Much thanks in advance,
> -CB
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