Secure wireless gateway
I'll go to abroad in the near future. At the hotel there will be Internet connection at the room, but only wired. I'll take my Android phone and my laptop, so I'll bring a small wireless router with me too. It is a Fonera 2g as hardware but runs OpenWrt.
As I'll have my own AP there why not secure my connection? I also have a private server somewhere at the USA, so I fired up an OpenVPN connection between my router and my server, and redirected all data through it. So now I'll have unsniffable connection in the hotel.
How I did it? It was easy after putting the VPN together (was also wasn't a big deal). Here is the recipe:
First I configured the OpenVPN normally but added the redirect-gateway at the end of the client config file, to make it redirect the default gateway through the VPN. After that I enabled it at boot time with
/etc/init.d/openvpn enable
I've edited /etc/firewall.user and added the next 3 lines to it:
iptables -I forwarding_rule -i tun+ -o br-lan -d 192.168.6.0/24 -j ACCEPT
iptables -I forwarding_rule -i br-lan -o tun+ -s 192.168.6.0/24 -j ACCEPT
iptables -t nat -I POSTROUTING -o tun0 -j MASQUERADE
where 192.168.6.0/24 is my wireless IP network.
And that's all. If now I boot the router it automatically connects to VPN and after redirects the gateway through it.
