I'll have a paper on IP firewalling and masquerading, which will
be made available soon (next week, I hope - no promises).
Watch http://www.xos.nl/linux/ipfwadm, on which the paper will
be announced.
> Also, is there any documentation available on transparent proxy?
Transparent proxy facilities are available in the 1.99.7 kernel
(aka pre2.0.7).
You might look at the manual pages of ipfwadm 2.1 (!), which will
become available tomorrow. Also look at Documentation/Configure.help
in the 1.99.7 kernel tree. More documentation will follow in the
future.
-- -- Jos Vos <jos@xos.nl> -- X/OS Experts in Open Systems BV | Phone: +31 20 6938364 -- Amsterdam, The Netherlands | Fax: +31 20 6948204