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- <li><em>date</em>: Wed Jun 1 08:11:52 2005</li>
- <li><em>from</em>: pizza at shaftnet.org (Stuffed Crust)</li>
- <li><em>in-reply-to</em>: <[email protected]></li>
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- <li><em>subject</em>: [ale] Firewall design</li>
This limits its effectiveness somewhat, as you'll be forced to use
ebtables instead of iptables, which has a much smaller functionality
set. This is because when bridging the IP traffic never actually hits
the interfaces, thus the standard INPUT/FORWARD/OUTPUT rules never
apply. And NAT will certianly have to be handled by another machine;
one with actual IP addresses configured.
Is there any reason you don't do the following:
ISP ---- [ NID box ] ------ SERVER1 [nat] --- INTERNAL network
|--- SERVER2
|--- SERVER3
|--- SERVER4
|----SERVER5
Granted, this way you end up needing to configure firewalls on each
machine. You could [transparently] insert your bridge firewall machine
after the NID box much like you need a hub or switch there anyway.
The above illustration is how I have things set up at work, and if
bright house networks didn't want $80/month more for multiple IPs, at
home as well. Each SERVER has its own firewall configured, and SERVER1
does NAT for the internal private network.
- Pizza
--
Solomon Peachy ICQ: 1318344
Melbourne, FL JID: pitha at myjabber.net
Quidquid latine dictum sit, altum viditur
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<li><strong><a name="00012" href="msg00012.html">[ale] Firewall design</a></strong>
<ul><li><em>From:</em> cfowler at outpostsentinel.com (Christopher Fowler)</li></ul></li>
<li><strong><a name="00033" href="msg00033.html">[ale] Firewall design</a></strong>
<ul><li><em>From:</em> transam at verysecurelinux.com (Bob Toxen)</li></ul></li>
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