> Is it possible to use IPTables version 1.2.7a with Redhat
> 7.3? RH 7.3 comes with a different version by default and I
> wanted to upgrade to 1.2.7a. Is it possible?
Yes, you can compile a brand new version for your own system.
It's not that hard...
> Also, do you know if any RPMs exist for IPTables version
> 1.2.7a and RH 7.3?
A Google search on "iptables 1.2.7a redhat rpm" returns results like http://www.haoli.org/rpm/redhat-7.x/RPMS/i386/.
But I still think you'd better compile your own.
Rob