SymptomsOn 64-bit node with Parallels Server 5 Bare Metal installed one cannot enable iptables for IPv6 inside 32-bit container:
[root@localhost ~]# ip6tables -L -n
ip6tables v1.3.5: can't initialize ip6tables table `filter': Invalid argument
Perhaps ip6tables or your kernel needs to be upgraded.
64-bit containers are working fine.
CauseThis is a known issue with internal ID PSBM-8446, developers are working on fix the issue in one of the future updates.
Workaround is to use 64-bit container instead of 32-bit.