FWIP.SYS

IP Packet Filter Driver used by the firewall built into IBM TCP/IP 4.1 and above. DEVICE=\MPTN\PROTOCOL\FWIP.SYS

This component of the VPN security system manages the firewall packet fileter and address translation service.

For configuring the Firewall get the program ServerConfig/2 which can be found at:
 * https://www.michelinakis.gr/Dimitris/sc/
 * A GUI configuration util for Apache 1.3.9, InetPowerServer/2 0.85 and the IBM TCP/IP for OS/2 firewall.