Vicomsoft has a made a public beta (the first) of Internet Gateway for Mac OS X available.
Internet Gateway is a software router used to connect networks to the Internet. It’s designed to offer shared, secure Internet functionality for networked Macs. Internet Gateway is designed for modularity and expandability for a range of applications.
The Mac OS X beta incorporates all of the features of the current Internet Gateway, while taking full advantage of the high performance and improved user interface available to native applications under Apple’s new operating system, according to the folks at Vicomsoft.
It includes: a firewall; Internet access controls by user or group; Web caching to improve Internet performance and reduce bandwidth usage; automatic connection to the Internet as needed; teaming of multiple Internet connections; dial-in access for a network; built in DNS and DHCP servers for simplified network management; and remote management.