IPFW2 verrevpath versrcreach antispoof

[abu khaled]

Greetings...

I recently build world and kernel with ipfw support. Can someone
provide examples on how to use these options (verrevpath, versrcreach
and antispoof). What can they be used for and can't! and how to use
them (proper syntax).

Execuse my poor english! I am knew to FreeBSD and UNIX / LINUX.
however thanks to searching the mailling lists I managed to setup a
FreeBSD box. I use it as a router with squid as a transparent proxy
and Bind forwarding DNS.

FreeBSD *****.*****5.4-PRERELEASE FreeBSD 5.4-PRERELEASE #0: Sat Feb
26 07:19:15 IST 2005     root@*****.*****:/usr/obj/usr/src/sys/XNET530
 i386