Linux Netfilter discussions
 help / color / mirror / Atom feed
From: "jgalvez@webpipe.net" <jgalvez@webpipe.net>
To: netfilter@lists.netfilter.org
Subject: A secure router, by MAC address
Date: Wed, 20 Oct 2004 12:46:06 -0600	[thread overview]
Message-ID: <1098297965.5686.9.camel@6-allhosts> (raw)

I am trying to setup a router, that forwards traffic from one interface
for only a specific set of MAC addresses.

Users on eth1 side will use a static IP address with a known MAC
address. DHCP will be running on eth1 for rogue users. If the source IP
is 10.0.0.0/8 all port 80 traffic needs to be redirected to localhost
port 80. ONLY traffic from a listed IP and MAC should be allowed to be
forwarded out.

I need some recommendation on how to accomplish this.  If you could
point me to a similar example or something I can figure it out . The
more specific the better.  I have a few of my notes and attempts below.

TIA
-Josh

eth0:
 -Allow all traffic, in and out
eth1:
 -Allow all DHCP traffic - something like below
  #iptables -I INPUT -i eth1 -p udp --dport 67:68 --sport 67:68 \
  -j ACCEPT
 -Allow all incoming traffic by source IP and MAC address
  #iptables -A PREROUTING -i eth1 -t mangle -m mac \
  --source 208.5.x.242 --mac-source 00:30:65:0e:91:d6 -j ACCEPT
 -Redirect all port 80 traffic from 10.0.0.0/8 to localhost:80
 -Drop all other incoming traffic
  #iptables -A PREROUTING -i eth1 -t mangle -j DROP

	



             reply	other threads:[~2004-10-20 18:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-20 18:46 jgalvez [this message]
2004-10-20 19:12 ` A secure router, by MAC address Eric Leblond
2004-10-20 19:28   ` jgalvez
2004-10-20 20:23     ` Eric Leblond
2004-10-20 20:39 ` Jason Opperisano

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=1098297965.5686.9.camel@6-allhosts \
    --to=jgalvez@webpipe.net \
    --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