different between ipfwadm , ipchains , nat
1. ipfwadm
* doesn't support policy REJECT and REDIRECTION
* just support DENY,ACCEPT, and FOWARD
2. ipchains
* support policy REJECT
* support policy REDIRECTION (but only REDIRECTION to another port
at the same IP address) => if u want redirection to another IP address u
must using rinetd
3. NAT
* support all (including redirection to another different IP address
with different port)
all of them have different way to build (syntax)
so welcome to the open source society
