Empty default gateway

bonjurkes

What I am trying to do: Use ip/connection of my openvpn server (Debian) when I connect to it via gui over win 8 desktop

The problem : I followed http://openvpn.net/index.php/open-source/documentation/howto.html#redirect this guide, and made proper changes, right after openvpn is connected I started to get DNS error (Server's DNS not resolved) and can't visit any site from my browser. I also tried pushing DNS settings from conf. Plus for some reason I have blank default gateway settings when I check it from windows.

server conf

port 3131
proto udp
dev tun
ca ca.crt
cert open.crt
key open.key # This file should be kept secret
dh dh1024.pem
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
push "redirect-gateway def1"
push "dhcp-option DNS 10.8.0.1"
keepalive 10 120
comp-lzo
persist-key
persist-tun
status openvpn-status.log
log-append openvpn.log
verb 6

client conf

client
dev tun
proto udp
remote 1** 3131
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert client.crt
key client.key
ns-cert-type server
comp-lzo
verb 6

ipconfig /all part from windows (client) - notice the empty default gateway-

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9
Physical Address. . . . . . . . . : 00-FF-D9-1F-84-6A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::2cbb:b7ec:3194:62ae%32(Preferred)
IPv4 Address. . . . . . . . . . . : 10.8.0.6(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.252
Lease Obtained. . . . . . . . . . : 30 Mayıs 2013 Perşembe 01:52:42
Lease Expires . . . . . . . . . . : 30 Mayıs 2014 Cuma 01:52:41
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 10.8.0.5
DHCPv6 IAID . . . . . . . . . . . : 536936409
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-22-FF-7B-14-FE-B5-AB-01-2D

DNS Servers . . . . . . . . . . . : 10.8.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

verb6 logs from client while connecting

http://pastebin.com/hDNymihB

I don't have well knowledge about openvpn so please let me know if there is any missing or required logs, and I can share it gladly. By the way I also did iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE . And I am sure that eth0 is the main interface on server

janjust

you're using

redirect-gateway def1

so I'm not surprised that this is not shown as a default route in Windows; remove the 'def1' to make it show up as the actual default route; note that in the current setup it should also be working, however.

I also see

DNS Servers . . . . . . . . . . . : 10.8.0.1

is there an actual DNS server running on the openvpn server? can you reach it? what happens if you ping an IP address, e.g. 8.8.8.8 from the VPN client?

jimbo88

Hi there,

This solved my problem, in the server config, put these settings:
dev-node [YOUR-TAP-INTERFACE]
topology subnet
#---------------add these lines to route internet traffic from VPN--------------------
push "redirect-gateway def1"
push "dhcp-option DNS 208.67.222.222"
push "dhcp-option DNS 208.67.220.220"
#------------------------------------------------------------------------------------------

then go to Start->type "services.msc" and enter"->look for "Routing and Remote Access"->set to automatic and start it.

After that, go to Control Panel->Network and Sharing->Adapter Settings->look for the interface with internet connection->go to Sharing tab->tick "Allow other Computer to use this internet" and select the OpenVPN TAP interface->Apply->DONE