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Article #14329

Re: DNAT �� SNAT ����

#14329
From: madog
Date: Tue, 11 Sep 2001 06:08
69 lines
4003 bytes
"jkwoocn" <jkwoocn@yahoo.com> wrote in message
news:9nk7a9$35s$1@mail.cn99.com...
> ������A��IPΪ192.168.1.1

����ô˵�ľ�������һ����û����ʵ�������������Ŀ�أ�

> ���ڲ���--destination-port�е�destinationָ��������A����Router2��������B?

destination

> ʹ������������������

��ʾ��ʲô����һ��Could not open a connection to host: Connect failed ?

>     iptables -A PREROUTING -t nat  -i eth0  -s 192.168.1.1  -d 128.1.1.2 \
>              -p tcp --dport 23 -j DNAT --to 128.2.2.3

#iptables -t nat -L

�ѽ����������һ��



>
> "madog" <no@no.no> wrote in message news:9nk07i$l63$1@madogcc.myip.org...
> > ������� "--sport 23" ��
> > ����������IPTABLES�Ļ������Ӧ����ROUTER2ֻ��A������23�������Լ�23������
ת
> ȥ
> > B
> >
> > ����A��ROUTER2 ������TELNET����һ����
> > A������1024������һ���˿�--->router2:23
> >
> > �?128.1.1.1&128.1.1.2��ͬ�εģ��м���ô���и�ROUTER1����ʲô���õģ�
> >
> > ��Ҳ��̫����˵���˱����
> >
> >
> > --
> > http://madogcc.myip.org  news://madogcc.myip.org
> >
> > "jkwoocn" <jkwoocn@yahoo.com> wrote in message
> > news:9njuf6$q9b$1@mail.cn99.com...
> > > ����,���繹������
> > >
> > >   ______             _______             _______            ______
> > >   |     |           (       )           (       )          |      |
> > >   |����A|-----------(Router 1)----------(Router2)----------|����B |
> > >   |_____|           (_______)        eth0(___)eth1         |_____ |
> > >   192.168.1.1                      128.1.1.2    128.2.2.2    128.2.2.3
> > >
> > > ����,����B�ܹ�ͨ������·�ɷ�������A,������Aֻ��ͨ��һ��·�ɷ��ʵ�
> Router2,
> > ��
> > > ����Ϊ��ȫ���趨��
> > >
> > > ��Ϊ����������A��ijһ�˿��ܷ�������B, ��Router2����DNAT,��:
> > >
> > >     iptables -A PREROUTING -t nat  -i eth0  -s 128.1.1.1  -d 128.1.1.2
\
> > >              -p tcp --sport 23 --dport 23 -j DNAT --to 128.2.2.3
> > >
> > > ����,����A��Ȼ����������B��ͨ��,��������Ϊʲô?�Ƿ��ʱ����B��������
A
> ʱ,
> > ��
> > > ��ֱ����ԭ�е�·��,��Ӧ��Router2�������һ��SNAT����MASQUERADE?
Technical Details
Message-ID: <9nk9pl$mpf$1@madogcc.myip.org>
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References: <9njuf6$q9b$1@mail.cn99.com> <9nk07i$l63$1@madogcc.myip.org> <9nk7a9$35s$1@mail.cn99.com>

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From: "madog" <no@no.no>
Newsgroups: cn.comp.os.linux
Subject: Re: DNAT �� SNAT ����
Date: Tue, 11 Sep 2001 14:08:55 +0800
Organization: madogcc.myip.org
Lines: 72
Message-ID: <9nk9pl$mpf$1@madogcc.myip.org>
References: <9njuf6$q9b$1@mail.cn99.com> <9nk07i$l63$1@madogcc.myip.org> <9nk7a9$35s$1@mail.cn99.com>
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