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Linux - Networking This forum is for any issue related to networks or networking.
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Old 03-14-2016, 06:50 PM   #1
LQ Newbie
Registered: Oct 2011
Posts: 2

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implement vpn killswitch using route?

I have a headless ubuntu 14.04LTS server that I want connected to VPN all the time. It seems that is nearly impossible using just pptp/pppd. So, barring that, I want to set the kernel default route to put all traffic except 192.168.1.* through the connection ppp0 and not eth0. That way if ppp0 is not available, the only connections that should work through eth0 are local VLAN IP's. Is that possible?
Old 03-15-2016, 12:03 PM   #2
Registered: Aug 2012
Location: Ontario, Canada
Distribution: Slackware 14.2, LFS-current, NetBSD 6.1.3, OpenIndiana
Posts: 319

Rep: Reputation: 112Reputation: 112
You don't need to hack the routing tables, use IP tables to forward and block all traffic you want to mangle


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