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OpenVPN "Force all client generated traffic through the tunnel." IPv4 only
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Topic: OpenVPN "Force all client generated traffic through the tunnel." IPv4 only (Read 9302 times)
netgeek
Newbie
Posts: 16
Karma: 0
OpenVPN "Force all client generated traffic through the tunnel." IPv4 only
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on:
January 27, 2020, 12:19:04 am »
I'm running OpenVPN on 20.1-RC1. I select "Force all client generated traffic through the tunnel" in my OpenVPN Remote Access server config. I use the client export utility. I can connect fine from my laptop, and I get assigned a working IPv4 and IPv6 address. However, only the 0.0.0.0/1 and 128.0.0.0/1 routes through the VPN tunnel are added when I connect. No IPv6 routing table entries are made, and none of my IPv6 traffic goes over the VPN. Shouldn't ::/1 and 8000::/1 routes be added when I connect? If I manually add the routes on my laptop, it can access the internet fine over the IPv6 OpenVPN link, but by default, no IPv6 traffic goes over the tunnel.
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bartjsmit
Hero Member
Posts: 2017
Karma: 194
Re: OpenVPN "Force all client generated traffic through the tunnel." IPv4 only
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Reply #1 on:
January 27, 2020, 07:02:43 pm »
Not sure if it is the same with 20.1-RC1 (I'm not brave enough) but on 19.7 I've added this option under 'Advanced' in my OpenVPN server:
push "route-ipv6 2000::/3"
This allows the clients to access public IPv6 addresses through the tunnel. You can add any ULA ranges that you have on the server end, if required.
Bart...
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OpenVPN "Force all client generated traffic through the tunnel." IPv4 only