Linux Netfilter discussions
 help / color / mirror / Atom feed
From: "Rob Sterenborg" <rob@sterenborg.info>
To: netfilter@lists.netfilter.org
Subject: RE: Excluding IP ranges from masquerade rules
Date: Mon, 13 Oct 2003 12:03:40 +0200	[thread overview]
Message-ID: <20031013125520.A8BA91B9BC@smtp.ttp.nl> (raw)
In-Reply-To: <1066038290.5801.35.camel@tarkus>

> I presently exclude 1 ip block in POSTROUTING using "! 
> X.X.X.X/24" . Is their a way to specify multiple ranges that 
> are excluded?

If you mean to specify a range instead of a complete block, there is a
Netfilter "iprange" patch for that. You'll have to compile a new kernel
and iptables.
http://www.netfilter.org/documentation/pomlist/pom-base.html#iprange
Create multiple rules for each range you want to exclude.

> Is their a way to have POSTROUTING only have affect on a 
> certain interface?

iptables -t nat -A POSTROUTING -o <if_out> ...
You cannot use "-i <if_in>".
See "man itables".


Rob



  reply	other threads:[~2003-10-13 10:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-13  9:44 Excluding IP ranges from masquerade rules Ted Kaczmarek
2003-10-13 10:03 ` Rob Sterenborg [this message]
2003-10-13 13:24 ` Ralf Spenneberg
2003-10-14  2:39   ` Ted Kaczmarek

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=20031013125520.A8BA91B9BC@smtp.ttp.nl \
    --to=rob@sterenborg.info \
    --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