kalau saya baca dari buku "Red Hat Linux Firewall",

proses iptables kayak gini:
mangle PREROUTING > nat PREROUTING > route ... nah disini bercabang deh dan
susah nulisnya kalau gak pakai gambar. :D

jadi, gimana kalau syntax dibawah dirubah sedikit menjadi:
iptables -t mangle -A PREROUTING -d $gateway -p icmp --icmp-type
echo-request -j DROP
iptables -t mangle -A PREROUTING -d $gateway -p icmp --icmp-type
echo-reply -j DROP

CMIIW

----- Original Message ----- 
From: "kenarok" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, September 05, 2003 11:11 AM
Subject: Re: [linux-admin] tutup protokol icmp


> Coba command sb:
> #
> iptables="/sbin/iptables"
> gateway1="192.168.242.26"
> #
> # Gateway
> # Echo Request
> $iptables -t nat -A PREROUTING -d $gateway1 \
>                -p icmp --icmp-type echo-request -j DROP
> # Echo reply
> $iptables -t nat -A PREROUTING -d $gateway1 \
>                -p icmp --icmp-type echo-reply -j DROP
> # .end
>
> Sintax tsb diatas diasumsikan bahwa IP 192.168.242.26 tdk diperbolehkan
utk
> PANG-PING-PONG :D


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