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From: Buddy wu <ejournal4me@gmail.com>
To: Rob Sterenborg <rob@sterenborg.info>
Cc: netfilter@lists.netfilter.org
Subject: Re: what's the problem of DNAT
Date: Mon, 31 Oct 2005 16:26:59 +0800	[thread overview]
Message-ID: <43a0cdcb0510310026t66d553f2v@mail.gmail.com> (raw)
In-Reply-To: <54583.193.173.147.3.1130746205.squirrel@webmail.sterenborg.info>

> Has anything changed in the FORWARD chain ? You need to allow it there.
>
follows are FORWARD chain. I think I DROP nothing except in the list.
I HAVE modified the policy of FORWARD chain to ACCEPT. that's why i'm
puzzled.
Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
DROP       all  --  0.0.0.0/0            0.0.0.0/0           ipp2p
v0.8.0_rc3 --ipp2p
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           state
RELATED,ESTABLISHED
ACCEPT     tcp  --  192.168.20.90        192.168.8.66        tcp dpts:137:445
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:445
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpts:137:139
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:5554
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpts:1433:1444
DROP       all  --  0.0.0.0/0            202.101.43.60
DROP       all  --  0.0.0.0/0            202.101.43.67
DROP       all  --  0.0.0.0/0            202.101.43.57

And there is another Interest thing (I'm pained with the "interesting thing")
where I use 'sbin/iptables -t nat -A PREROUTING -d Inet2 -p tcp
--dport 8087 -j DNAT --to 192.168.16.100:8087' rule, I can access
http://Inet2:8087 in the LAN, but I can't access http://Inet2:8087
through Internet(I have a machine direct access to internet)

when turn to use 'sbin/iptables -t nat -A PREROUTING -d Inet2 -p tcp
--dport 80 -j DNAT --to 192.168.16.100:8087' then I can access
http://Inet2:80 in the LAN, and both can access http://Inet2:80 in
Internet... that's the thing i had meet


  reply	other threads:[~2005-10-31  8:26 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-31  3:31 what's the problem of DNAT Buddy wu
2005-10-31  5:24 ` Buddy wu
2005-10-31  6:59 ` Henrik Nordstrom
2005-10-31  7:58   ` Buddy wu
2005-10-31  8:10     ` Rob Sterenborg
2005-10-31  8:26       ` Buddy wu [this message]
2005-10-31 13:25         ` Henrik Nordstrom

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