- Any iptables-based device (e.g. Linux kernel/OS, DD-WRT, OpenWRT, RaspberyPi) - DLink devices that allow selecting of "Other" protocol, DLink provides Web GUI simulators for most router models

**On D-Link

1.) Browse to Network Settings > Advanced > Virtual Server 2.) Add name and IP address of 44GW, or select IP from the list and click the "<<" button 3.) Change Protocol to "Other" and enter "4" in the box under Protocol 4.) Click "Save Settings"

**Command for Static IP (tested on DD-WRT and OpenWRT):

iptables -t nat -I PREROUTING -p ipencap -d <GW Public IP> -j DNAT --to-destination <GW LAN IP> iptables -t filter -I FORWARD -p ipencap -d <GW LAN IP> -j ACCEPT

**Command for Dynamic IP - (WAN is vlan1 in DD-WRT in OpenWRT it is usually eth0.1):

iptables -t nat -I PREROUTING -p ipencap -i vlan1 -j DNAT --to-destination <GW LAN IP> iptables -t filter -I FORWARD -p ipencap -d <GW LAN IP> -j ACCEPT

73,

Lynwood KB3VWG