FWM is the answer to a large gap in management of linux firewalls. It manages network configuration, initialization, interfaces, routing, nat, and policy configuration. It is not meant to be a replacement or front end to iptables, as it requires an iptables policy and nat file (templates included).
FWM addresses several problems associated with stock linux firewalls, including: dhcp-assigned external addresses, ipsec, management, policy, network adapters, and routing.
The entire scriptset is under 100K uncompressed.
The scriptset also includes a default policy, taking full advantage of linux 2.4's state table, and protects against several common attacks, such as spoofing, source routing, and unecessary open ports. It is configured for source NAT, but can easily accommodate any network scenario.
To download FWM via ftp, click here. To download FWM via http, click here.