[ILUG] linux pptp client woes

[Martin Feeney]

Philip Brennan wrote:

> We use a pptp based vpn, which runs on linux. Windows clients are fine, 
> but having spent probably 20 hours on it,
> we cannot get a linux client to work.  The connection comes up fine, but 
> no packets seem to go through the tunnel,
> no matter how we set the routing up. Does anyone here have experience 
> with setting up linux as a pptp client?

Are you using the same kernel and ppp packages on the linux server 
machine and client machine?  Which MPPE patches have you applied to pppd 
and the kernel?

Can we have a look at your pptpd and pppd configs on client and server? 
  As Baruch mentioned, try adding debug to both on client and server.

What are the routing tables like on client and server after connect?
Do the correct IPs get assigned to the connection?

Make sure your windows clients are *actually* connecting in the fashion 
you'd like - unless you tick the various "require encryption" boxes, 
they silently fall back to unencrypted if an encrypted connection fails.

Martin.