hi everyone
I am a newbee to firewall scripting. cannot understand how to write rules per host. in ip6tables.
anyone plz:(
Apart from addressing details AFAIK ip6tables ain't different from iptables. If you don't know how to write rules at all then you might want to start reading. The Iptables Tutorial 1.2.2 seems to be the most commonly cited HOWTO and includes examples.
You did not mention which distribution you were using. However, I far as I know most distributions do not yet support an IPv6 nat table. This means that it is not possible to perform IPv6 network address translation related tasks, such as masquerading and port forwarding.