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OpenVPN
OpenVPN is software to connect two LANs together, so that a client can access both subnets. OpenVPN, unlike IPSec, uses SSL/TLS to maintain secure connections.
Server Configuration
The simplest way to setup a VPN connection is to have the LAN's subnet address be different than a client's home subnet. For example, 192.168.12.0 at work, since 192.168.1.0 would be common elsewhere.
OpenVPN recommends UDP over TCP.
IPFire Setup
- OpenVPN on RED
- Local VPN Hostname/IP: vpn.beandog.org
- OpenVPN subnet: 10.117.209.0/255.255.255.0
- OpenVPN device: TUN
- Protocol: UDP
- Destination Port: 1194
- MTU size: 1400
- LZO-Compression
- Encryption: AES-256-CBC