On Sun, 8 Nov 1998, Neil Moore-Smith wrote:
> Date: Sun, 8 Nov 1998 19:26:53 -0000
> From: Neil Moore-Smith <[EMAIL PROTECTED]>
> To: 'Linux-Net Mailing List' <[EMAIL PROTECTED]>
> Subject: What's meant by "Input" and "Output" Firewall in IPFWADM?
I saw that, sneakingly not mailing the LRP list :)
> same result. So what's the difference between F, I, and O? Is F simply a
> combination of I and O for ease of use?
F is for forwarding. It tells the kernel if it is allowed to toss packets
from one of its interfaces to other interfaces.
I is for the input firewall. It is a list of rules the kernel applies to all
packets it receives from other machines.
O is for the output firewall. It is a list of rules the kernel applies to
all packets it will send to other machines.
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