SONaFR - Simple OpenBSD NAT and Firewall/Router

[junfengfan]

http://www.freebsd.nfo.sk/opbsd/openbsdeng.htm

[f5b]

补充http://www.nmedia.net/flashrd/

flashrd is an OpenBSD installer with an eye towards larger flash devices. The primary targets are USB key, Flash disk module, Compact Flash adapter, or hard disk.

做网关，我用过
http://m0n0.ch/wall/

还用过
http://www.pfsense.com/

最终用回OpenBSD 官方版自己配置，这样才可以学到东西。

如果不想花时间，pfsense确实方便