VPN client routing setting

infern0 · 08-10-2014, 06:23 PM

Client computer is connected to the VPN, has two intefaces: wlan0 for internet and ppp0 for VPN.
After setting route add default gw 192.168.2.1 wlan0 and route add default gw 10.10.10.1 ppp0, connection to VPN works but very laggy. Access to 10.10.10.X and e.g. google.com is very slow. When computer pings 10.10.10.X and 8.8.8.8 simultaneously, I see that only one of them gets pong, when one gets, second doesn't and it rotate. I'm not sure if it make sense for you, sorry for my english.
My routing table:

Code:

default         10.10.10.1      0.0.0.0         UG    0      0        0 ppp0
default         192.168.2.1     0.0.0.0         UG    0      0        0 wlan0
10.10.10.1      *               255.255.255.255 UH    0      0        0 ppp0
<real_ip_of_10.10.10.1>    192.168.2.1     255.255.255.255 UGH   0      0        0 wlan0
loopback        *               255.0.0.0       U     0      0        0 lo
192.168.2.0     *               255.255.255.0   U     0      0        0 wlan0

Can somebody say me, why don't work simultaneously(how I find out above) these two connections? And how set route on ppp0 correct.
Thanks a lot.

infern0 · 08-10-2014, 10:23 PM

I found solution on https://wiki.gentoo.org/wiki/Vpnc
Command route add -net 10.10.10.0 netmask 255.255.255.0 dev ppp0 solved it. I thought that every connections to 10.10.10.x are transmitted throught ppp0 automatically. I'm not sure how it works. Now I think gateway route on subnet is setting automatically when starting ppp0 interface(in my system via command pon <peer_name>), it's ok. How is it with transmission to 10.10.10.x IPs? When I connect laptop on eth0, I can access his IP without any issue which I had with ppp0. What's different in base? If somebody can response me, I'l be happy.