[CentOS] IPv6 under Centos?

I wonder if anyone is running IPv6 under Centos-5.2?
Particularly with shorewall?

I see that shorewall6 is specifically designed for updating shorewall
to IPv6, as described in <http://www.shorewall.net/IPv6Support.html>.

Unfortunately, this explicity requires kernel 2.6.25 or later,
and iptables 1.4.0 or later,
both of which are later than any versions I've seen on a Centos repository.

I'm wondering how safe it would be to install Fedora versions
of the required kernel and iptables?

Or is there any alternative to shorewall that is IPv6 compatible?
I don't really want to run iptables directly, unless forced to do so,
as I have found shorewall very reliable and simple to configure.


-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland