Hello World (and people ;) )

Using Intrepid and trying to establish a VPN to my linux pptp server, I
got some trouble with the routing table.

Before the connection, route -n gives :
Kernel IP routing table
Destination     Gateway        Genmask         Flags Metric Ref    Use Iface
192.168.123.0   0.0.0.0         255.255.255.0   U     2      0        0 wlan0
0.0.0.0         192.168.123.254 0.0.0.0         UG    0      0        0 wlan0

This is correct as my private network is 192.168.123.0/24 and my wifi
interface wlan0

Then after the connection, route -n gives :
Kernel IP routing table
Destination     Gateway        Genmask         Flags Metric Ref    Use Iface
192.168.1.10    192.168.123.254 255.255.255.255 UGH   0      0        0 wlan0
88.191.52.170   192.168.123.254 255.255.255.255 UGH   0      0        0 wlan0
192.168.123.0   0.0.0.0         255.255.255.0   U     2      0        0 wlan0
0.0.0.0         0.0.0.0         0.0.0.0         U     0      0        0 ppp0

In the IPv4 section, I let tried several options to ignore the automatic
route changes ... without success.

So I have to manually change  the route as follows to enable access to my 
server through the vpn and access to internet through my lan:
route del 192.168.1.10
route add 192.168.1.10 dev ppp0
route del -net 0.0.0.0 gw 0.0.0.0 dev ppp0
route add -net 0.0.0.0 gw 192.168.123.254 dev wlan0

It's working just as it should then we can remove the entry pointing to the 
server:
route del 88.191.52.170

I can find a way to specify the interface in the routing section of the
vpn configuration of NM ... did I miss something or is there a hidden
feature ? Maybe a missing feature ?

Anyway, I don't get it why the default gateway is re-routed through my
ppp0 interface ...

Does anyone have a clue ?

Thanks a lot for your time,

Nicolas

-- 
PPTP plugin for network manager sets wrong routing table entries
https://bugs.launchpad.net/bugs/113622
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