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Re: [Openvpn-users] redirect-gateway + http-proxy + ppp problem


  • Subject: Re: [Openvpn-users] redirect-gateway + http-proxy + ppp problem
  • From: "David Balazic" <David.Balazic@xxxxxxxxxxxxxxxxxx>
  • Date: Wed, 5 Dec 2007 16:26:25 +0100

Title: Re: [Openvpn-users] redirect-gateway + http-proxy + ppp problem
Would be nice if OpenVPN would detect the correct settings by istelf.
 
Finding the correct old routing table line is easy:
STEP A:
  - filter where both Destination and Genmask are 0.0.0.0
 
Then
STEP B:
 - IF Gateway != 0.0.0.0 THEN
   use existing code to deal with it
 - ELSE
  route add VPN_SERVER_IP  THE_DEV_FROM_THE_ROUTING_TABLE_FOUND_IN_STEP_A
eg. route add 145.11.22.33 ppp0
 
Regards,
David
 


From: openvpn-users-bounces@xxxxxxxxxxxxxxxxxxxxx on behalf of Jan Just Keijser
Sent: Wed 05-Dec-07 13:32
To: Laurent GUERBY; openvpn-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [Openvpn-users] redirect-gateway + http-proxy + ppp problem

Hi Laurent,

the messages seems pretty clear: when you're connecting using your ppp
interface then openvpn cannot determine the default gateway on your
network; you need to specify it explicitly or make sure that you *have*
a default gateway when connecting thru ppp.

Laurent GUERBY wrote:
> In the client logs in the ppp case I have a "cannot read current default
> gateway from system" message:
>
>  
the SERVERIP routing table shows the default GW:
> >>>>> 0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 wlan0
>  
where as with PPP your routing table does not have any 'UG' entries:

> #route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> 10.6.6.6        0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
> 0.0.0.0         0.0.0.0         0.0.0.0         U     0      0        0 ppp0
>  
fix this and your openvpn connection should work...

HTH,

JJK


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