[pptp-devel] PPTP/PPPD On Demand + Static Routes

[Kevin Y. <ke...@yi...>]

I've gotten pptp/pppd on-demand to work but not automatically.

I've created my custom /etc/ppp/peers/tunnel and start up the pppd portion by 
using 'pppd call tunnel' where tunnel matches the configured tunnel name in 
/etc/ppp/peers.

My problem is after starting up pppd, I can add the host route that I need to 
be able to initiate on-demand pptp connections.

After pptp comes up, the original host route I added disappears and is replaced 
by a the host route to the remote side of the pptp tunnel.  In this particular 
configuration, the remote side is on a different network than my desired host.

So I have to manually re-add the host route, then traffic can progress as I 
would like it.  I've also added an idle timeout and when the idle timeout kicks 
in and the tunnel comes back down, the host route that was re-added has 
disappeared once again and the host route back to the remote side is back 
again.

Using pptp-linux-1.3.1, ppp-2.4.2-cvs-20030610, kernel-ppp-mppe-0.0.5-5dkms, 
and kernel rev 2.4.20-28.8smp w/ RedHat 8.0.

I couldn't find any other existing topics on the mailing list that talked about 
demand pppd and additional static routes.  If I don't use demand pppd, then it 
works fine by using the `pptp-command' to start the tunnel as it has facilities 
to configure static routes via comments in /etc/ppp/peers/tunnel.