Tunneling all traffic through OpenVPN connection

Question

Tunneling all traffic through OpenVPN connection

networking

I completed the tutorial ~~[https://library.linode.com/networking/openvpn/ubuntu-12.04-precise" target="_blank">](https://library.linode.com/networking/o … 04-precise">https://library.linode.com/networking/openvpn/ubuntu-12.04-precise]( without problems. I went all the way to the end as I need DNS forwarding for all traffic from my client machines.

I can connect to my linode openvpn without problems. When I am on the vpn connection I can connect to my linode mailserver and the web client for it. When I try to load a page from my browser (while connected to the VPN) the pages all time out. Any pointers as to where I can look in my configuration to find the source of this problem are appreciated.

thomas

2 Replies

forum:forbajato · Answer 1 · Nov. 25, 2013, 4:46 p.m.

forum:forbajato 10 years, 5 months ago

It seems like this may be a problem from the client end - I am having the same trouble with a friend's VPN as well. Any tips on where to look to fix this?

thomas

forum:fmouse · Answer 2 · Nov. 27, 2013, 5:07 p.m.

forum:fmouse 10 years, 5 months ago

I've seen this problem on several occasions and my best guess is that it's an MTU problem. Try reducing the MTU for the OpenVPN tunnel interfaces. I believe this is what worked for me to solve the problem. Also see the paragraph on TCPMSS in the man page for iptables.

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Tunneling all traffic through OpenVPN connection

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