This is a C# deamon that implements the UPnP Internet Gateway Device specification (IGD) and allows UPnP aware clients, such as MSN Messenger or DirectPlay based applications to work properly from private networks.
Sonate is a java GUI for OpenBSD pf packet filtering. Optional code can be compiled to OpenBSD host to transfer generated configuration using SSL
yafig is a LAMP-based firewall rule generator.
jNuFw is a library and a client written in Java to the authenticating firewall NuFw.
JWall is not just a java gui for iptables. JWall is a multi firewall management client. A secure rulebase can be built with graphical objects. Rulesets can be pushed to remote firewalls (via ssh). The remote firewall just needs to be Linux with sshd
really simple (minimal) implemention for client only igd from upnp, contains just enough to allow you to open/delete ports on a upnp router. uses libcurl, libxml2 and libxslt
macf is a MAC-based packet filter. It can be on a machine acting as a firewall, router, bridge, or even a server, and allows operators to "check out" MACs which may then be used for a period of time. Right now, it's on hold for lack of interest.
Plugin for m0n0wall (http://m0n0.ch/wall) to manage direct full IP acces for specified networks through the captive portal and/or the firewall. Possibility to import a list of such networks from an http location.
a logging system for openbsd's pf. uses postgresql for storage, and is designed to cope with an unreliable network connection to the database.
Pablesticky is a PHP script that provides a web interface to a growing amount of features of OpenBSD's PF.