From owner-freebsd-questions  Mon May 29 11:34:31 2000
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Date: Mon, 29 May 2000 14:35:36 -0400
From: Otter <otterr@telocity.com>
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To: Florian Helmut Mueller <f-h-m@gmx.de>
Cc: questions@FreeBSD.ORG
Subject: Re: freebsd translation of linux firewall settings or natd versus 
 battlecom
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Florian Helmut Mueller wrote:
> 
> Hi!
> 
> I have our LAN connected to the Inet via a freebsd router, but Battlecom
> isnt working beause of the Firewall.
> I have found a workaraound on the Battlecom Homepage that is ment for Linux
> boxes:
> 
> To use BattleCom Client from within a network which is connected to the
> Internet through an IP Masquerade you must forward the appropriate ports to
> the PC behind the masquerade.
> 
> Step 1: You need to have root or su access.
> Step 2: Find the ipmasqadm rpm for ipchains or the ipautofw rpm if you're
> using ipfwadm and install the RPM (if not already installed... can be found
> at rpmfind.net)
> Step 3: For IP Chains use this command set:
> 
> ipmasqadm autofw -A -v -r udp 2300 2400 -h www.xxx.yyy.zzz
> ipmasqadm autofw -A -v -r tcp 2300 2400 -h www.xxx.yyy.zzz
> ipmasqadm autofw -A -v -r tcp 47624 47624 -h www.xxx.yyy.zzz
> ipmasqadm autofw -A -v -r udp 47624 47624 -h www.xxx.yyy.zzz
> ipmasqadm autofw -A -v -r udp 28800 28900 -h www.xxx.yyy.zzz
> 
> For ipfwadm:
> 
> ipautofw -A -v -r udp 2300 2400 -h www.xxx.yyy.zzz
> ipautofw -A -v -r tcp 2300 2400 -h www.xxx.yyy.zzz
> ipautofw -A -v -r tcp 47624 47624 -h www.xxx.yyy.zzz
> ipautofw -A -v -r udp 47624 47624 -h www.xxx.yyy.zzz
> ipautofw -A -v -r udp 28800 28900 -h www.xxx.yyy.zzz
> 
> You should replace www.xxx.yyy.zzz with the IP Address of the PC behind the
> masquerade that will be running the BattleCom Client.
> 
> Now as these lines seem to be a little not so common, i have trouble to
> translate them into some freebsd compatible format. I have read lots of
> Documents about freebsd and linux firewalling, but still have trouble
> finding out, just WHAT THESE LINES ARE TELLING THE FIREWALL TO DO!!
> So if somebody please could come up with an explanation or even a freebsd
> compatible version of these lines, i would be really thankfull.
> 
> cu and thx in advance
> 
> FHM
> 
As I don't use natd, and therefore not wiz with it, i'm not going on
the lecture circuit. i can tell you, however, that it does have a
redirect_port feature you might want to look in to, assuming that's
what you're using on your gateway there.
-Otter


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