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Date:      Thu, 7 Jun 2001 18:05:37 +0200
From:      "Marcel Dijk" <nascar24@home.nl>
To:        <freebsd-security@FreeBSD.ORG>
Subject:   IPFW rules > ports still open!
Message-ID:  <02ab01c0ef6b$b1002610$0900a8c0@windows>
References:  <Pine.BSF.4.30_heb2.09.0106061220000.50496-100000@slis-two.lis.fsu.edu><009e01c0ef55$da422340$9201a8c0@home.net> <1569370004.20010607180037@mail.spbnit.ru><0e4001c0ef5c$034299e0$241da8c0@ke.balt.net> <20010607190013.4a57045e.nikolaj@mail.spbnit.ru>

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Hello,

i have tried to make a good firewall but I have some problems. This is my
rc.firewall.rules file.

add 500 allow all from 192.168.0.0/16 to any
add 525 allow all from any to 192.168.0.0/16

#add 575 allow ip from any to MY_IP
#add 600 allow ip from MY_IP to any

add 615 allow tcp from any to MY_IP 22,5618,10000
add 625 allow tcp from MY_IP to any

add 650 allow udp from any to MY_IP
add 700 allow udp from MY_IP to any

add 800 allow icmp from any to MY_IP
add 750 allow icmp from MY_IP to any

(MY_IP is my internet IP address. I have blocked it for abvious reasons)

The problem is that I can't access the services that I have allowed. For
example I can't access the service that's behind port 22 on MY_IP.
Why is this? If I allow IP from any to MY_IP and allow ip from MY_IP to any
all ports are open. And that;s just what I don't want.

I hope you guys fill me and can help me.

Thanks, I can't seem to solve this one.

Marcel


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