Linux PPP protocol development
 help / color / mirror / Atom feed
From: tatel@euskalnet.net
To: linux-ppp@vger.kernel.org
Subject: active-filter
Date: Sun, 07 Mar 2004 14:09:26 +0000	[thread overview]
Message-ID: <3d9ff3e0e9.3e0e93d9ff@euskalnet.net> (raw)

Hi, 

I'm trying to set an active-filter expression for on-demand, but I'm
really stuck with. I can't get effective help from neither from
documentation neither from user mailing lists.

Problem is people scanning (mostly) netBIOS ports. These packets (I
think) are holding the link up by resetting idle-timeout to zero.

I'm using woody with ppp 2.4.1 from debs and compiled kernel with
filtering option enabled

If I set something like "active-filter 'inbound port 135'" I get a parse
error message. This stucks me since man tcpdump says inbound is for ppp
connections.

If I set something like "active-filter 'dst port 135'" there is no parse
error message, but modem dials nothing

Does anybody know an appropiate active-filter expression?

Thanks a lot

Roman






             reply	other threads:[~2004-03-07 14:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-07 14:09 tatel [this message]
2004-03-07 14:51 ` active-filter Florent Capdeville

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=3d9ff3e0e9.3e0e93d9ff@euskalnet.net \
    --to=tatel@euskalnet.net \
    --cc=linux-ppp@vger.kernel.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