Hi, when (re)emerge or emerge -u iptables the dir /var/lib/iptables are removed by portage. This is due to thee ebuild doesn't create a .keep file to keep Portage from removing it on unmerge. I have only tested this for 1.2.7a and 1.2.7a-r1
aliz: you can do: keepdir /var/lib/iptables in the src_install section, I believe
Fixed in -r2. Thanks for finding this!