Linux Netfilter discussions
 help / color / mirror / Atom feed
From: "Stanislav Puffler DiS." <stanislav.puffler@seznam.cz>
To: netfilter@lists.netfilter.org
Subject: tcp packets on 25 port FORWARDING
Date: Fri, 12 Mar 2004 10:46:41 +0100	[thread overview]
Message-ID: <E1B1jEu-0002TS-U9@vishnu.netfilter.org> (raw)

[-- Attachment #1: Type: text/plain, Size: 735 bytes --]

Hi there,

I need to forward all tcp packets with port 25 (SMTP) from Internet to
machine in my network. My settings (eth0 = internet IP, eth1 = 192.168.200.1
- dmz IP connected to another machine with Postfix, eth2 = 192.168.0.1 -
gateway - LAN). Have opened port 25 and setup rule :

 

iptables -t nat -A PREROUTING -p tcp -dport 25 - i eth0 -j DNAT -to
192.168.200.2:85

 

iptables -A FORWARD -i eth0 -p tcp -d 192:168.200.2 -dport 25 -m state
-state NEW,ESTABLISHED,RELATED -j ACCEPT

 

But it still doesn´t route tcp packets on port 25 to my Postfix computer :o(
If I try telnet 192.168.200.2 25 from FW it works, if I try this from
Internet, it doesn´t work :o( Any ideas ? Thanks a lot.

Stan.

 


[-- Attachment #2: Type: text/html, Size: 3064 bytes --]

             reply	other threads:[~2004-03-12  9:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-12  9:46 Stanislav Puffler DiS. [this message]
2004-03-12  9:57 ` tcp packets on 25 port FORWARDING Antony Stone
2004-03-12 10:47   ` Stanislav Puffler DiS.
  -- strict thread matches above, loose matches on Subject: below --
2004-03-12 10:03 peter.gehle
2004-03-12 10:21 ` Antony Stone

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E1B1jEu-0002TS-U9@vishnu.netfilter.org \
    --to=stanislav.puffler@seznam.cz \
    --cc=netfilter@lists.netfilter.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox