Please consider the future inclusion of Divert Sockets to the iptables package
(and to ipchains, and kernel). Divert sockets look fairly cool.
This would need to be in the kernel first before we'd ship it in iptables.
Well, the divert sockets code went nowhere fast. The homepage is a
404, the sourceforge site hasn't seen any updates since 2003, there is
no 2.6 version.
Thankfully, it looks like Netlink Sockets will provide equivalent
functionality. Closing this one as WONTFIX.