Re: �е��iptables��

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Article #14251

#14251

From: lfree
Date: Sat, 06 Oct 2001 02:53

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��ӭ����news://news.cn99.com��cn.comp.os.linux������
��ʹ��www.google.com����www.google.com/linux��������Ҫ��������ĵ�


"youngtsin" <youngtsin@21cn.com> wrote in message
news:9pkb7q$8l5$1@mail.cn99.com...
> ����֮��������ֻ�ܵõ���̬IP��ַ(��ǰΪ1.2.3.4)��
> ������ͨ��绰��֪�Է�IP��ַ��
> �����Է��������WWW������(192.168.1.1)��
>
> ������д�Բ��ԣ�
> iptables -F
> iptables -t nat -F
> iptables -A PREROUTING -i ppp0 -p tcp --dport 80 -j DNAT --to 192.168.1.1
> iptables -A POSTROUTING -o eth1 -s 192.168.1.1 -j SNAT --to ppp0
> Ϊʲô���ǲ�ͨ��
��û��ʵ����Ҿ���������е��ң����Լ�Ҳ�е�㣩��
����Կ���
URL http://netfilter.samba.org/unreliable-guides/cn/NAT-HOWTO-chn.tgz


POSTROUTING == > snat
PREROUTING  ===> dnat
Ӧ���޸�Ϊ��������ppp0Ϊ�ⲿ�ӿڣ�

 iptables -t nat -A PREROUTING -i ppp0 -j DNAT --to 192.168.1.1
 #�����ⲿip���Է���192.168.1.1

 iptables -t nat -A POSTOUTING -o ppp0 -j MASQUERADE
 #�����ڲ��������ַ���Գ�ȥ������
 iptables -t nat -A POSTOUTING -o ppp0 -j SNAT --to 1.2.3.4

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From: "lfree" <zwsqyy0483@cn899.com>
Newsgroups: cn.comp.os.linux
Subject: Re: �е������iptables��������
Date: Sat, 6 Oct 2001 10:53:24 +0800
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Re: �е��iptables��