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OpenBSD VPN gateway using IPSec/IKEv2

13 bytes added, 11:16, 21 February 2019
Create virtual network interface
echo 'inet 172.24.24.1 255.255.255.0 172.24.24.255' > /etc/hostname.enc0
echo 'inet6 2001:470:8c78:a0:: 1 64' >> /etc/hostname.enc0
echo 'up' >> /etc/hostname.enc0
server:
interface: 172.24.24.1
interface: 2001:470:8c78:a0::1
interface: 127.0.0.1
interface: ::1
config address 2001:470:8c78:a0::/64 \
config name-server 172.24.24.1 \
config name-server 2001:470:8c78:a0:: 1 \
tag "vpn" tap enc0
Make sure you set iked_flags in /etc/rc.conf.local:
iked_flags=rcctl set iked flags -6
Otherwise you will not have IPv6 connectivity, even outside the VPN!

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