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 ipfw
Author: Aaron 
Date:   14-12-02 02:10

Hi

I am trying to find a good place to find some basics on ipfw. I found some places, but there beyound my scope so far. I just want to learn some basic ipfw add funtions, like for example to deny all to ssh but sept my client login. I want to start with basic turtorials and work my way along. Any good links would be great.

Aaron

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 Re: ipfw
Author: Aaron 
Date:   14-12-02 05:57

Hi Again

ipfw is sweet ! I've covered most of the basic commands, but one thing poundering my mind is the numbers the rules are based off of. Like for example 64000. Is there any curtain numbers based themes you need to stick to when creating rules.

What I exactly mean

basic open ipfw firewall:

00100 allow ip from any to any via lo0
00200 deny ip from any to 127.0.0.0/8
00300 deny ip from 127.0.0.0/8 to any
65000 allow ip from any to any
65535 deny ip from any to any

When I create some new rules, am I bound to use curtain numbers, or are they all fair game. I know the consepts of the file wall, but just wounder what the numbers exactly mean down to detail. The articles i've read have lacked this point of discription.

Aaron

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 Re: ipfw
Author: Jess 
Date:   19-12-02 23:28

I think they can be fom 1 to 65535, reading through from 1 and so on. If you allow something at a lower number, you cannot block it further down as it has already been passed.

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