All of lore.kernel.org
 help / color / mirror / Atom feed
From: Philip Craig <philipc@snapgear.com>
To: netfilter@lists.netfilter.org
Subject: Re: DNAT pptp to windows machine
Date: Wed, 03 Aug 2005 16:25:02 +1000	[thread overview]
Message-ID: <42F0633E.4020000@snapgear.com> (raw)
In-Reply-To: <01d001c597f2$246fe580$0100a8c0@newlife>

Ming-Ching Tiew wrote:
> As far as I know, PPTP connection tracking is for the PPTP client going
> through firewall, ie pptp masquerade. It is not needed for DNAT of PPTP 
> into a pptp server.

The PPTP connection tracking works for both clients and servers,
since after all, you need one of each to make a PPTP connection.

While you can get by without it for DNAT to a server, the PPTP
connection tracking allows you to automatically NAT the related
GRE connections, and you can use a conntrack state match to only
allow related GRE packets through the firewall.


  reply	other threads:[~2005-08-03  6:25 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-02 21:35 DNAT pptp to windows machine J.T. Moore
2005-08-03  6:11 ` Ming-Ching Tiew
2005-08-03  6:25   ` Philip Craig [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-08-02 15:12 Gary W. Smith

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=42F0633E.4020000@snapgear.com \
    --to=philipc@snapgear.com \
    --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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.