Feb 15, 2019 · Snom decided to use OpenVPN because it is compatible with SSL/TLS, RSA Certificates and X509 PKI, NAT, DHCP, and TUN/TAP virtual devices. NOTE: Starting from 8.7.5.17 the VPN feature is now not enabled by default, in order to enable it you have to download the VPN patch from this page. OpenVPN is Open Source and is licensed under the GPL.

NAT the VPN client traffic to the Internet. change the ip address mask according to your info of tun0 result while running "ifconfig" command. iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE. If your default iptables OUTPUT value is not ACCEPT, you will also need a line like: iptables -A OUTPUT -o tun+ -j ACCEPT OpenVPN through double NAT Good afternoon, As with all ISP in France, mine requires to use their own modem/router to benefit from VoIP services (the phone is connected to their modem/router). SNAT rules are automatically added by omv-openvpn you up your interface so don't need to add iptables-persistent config file. remove all is ok. for your environment you should have two NAT first is 10.8.0.0 <-> 192.168.1.10 <-> internet IP router do NAT for 192.168.1.10 <-> internet IP (they uses masqurade here since most isp uses dynamic ip) Set OpenVPN to push a gateway configuration, so all clients send internet traffic through it. iptables -t nat -A POSTROUTING -s 10.89.0.0/24 -o eth0 -j MASQUERADE

A guide on how to route all traffic through an OpenVPN tunnel using a NAT. Code Transphporm. Transphporm is a novel templating engine that takes a completely different approach to others. Transphporm uses a CSS like syntax to allow writing content to any element on the page.

OpenVPN through double NAT Good afternoon, As with all ISP in France, mine requires to use their own modem/router to benefit from VoIP services (the phone is connected to their modem/router). SNAT rules are automatically added by omv-openvpn you up your interface so don't need to add iptables-persistent config file. remove all is ok. for your environment you should have two NAT first is 10.8.0.0 <-> 192.168.1.10 <-> internet IP router do NAT for 192.168.1.10 <-> internet IP (they uses masqurade here since most isp uses dynamic ip)

L2TP VPN for servers behind NAT

If you followed my pFSense OpenVPN tutorial then you have Firewall and NAT setup correctly. Firewall for WAN interface should look like this: Under OpenVPN there should be also one firewall rule . That is it for the firewall – we don`t need custom rules for OpenVPN under LAN or OPT1 interface.