I would be interested in having iptables working on my mbwe (white ring) edition.
I was able to install iptables using ipkg but of course it needs the netfilter kernel module to be loaded to work.
Here's what iptables says :
iptables v1.4.9: can't initialize iptables table `filter': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded.
And the following website which seemed to be the reference is not available anymore. :/