Hm... it seems to be working now.  I had them not-in-sequence (i.e.
0,3,4,&5 were rules, but 1&2 forwarded other things... I put the rules
in sequential order and it seemed to work.  Odd.  Well, thanks for the
help :]
 -david

-----Original Message-----
From: Charles Steinkuehler [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, January 29, 2002 7:04 PM
To: david goodrich; [EMAIL PROTECTED]
Subject: Re: [Leaf-user] ip filtering

> This is something of an odd request, but here goes... I'm a college
> student, and use my dachstein 1.0.2 floppy firewall to keep my servers
> away from all the hacktivity on the local net... I forward the
necessary
> services to my servers, easy enough.  But here's the deal: my floor
> wants to put on a game tournament to raise money, and we want to make
> sure that nobody else gets to the game server except ip's that have
paid
> the entry fee.  I tried using
>
> [from /etc/network.conf]
> EXTERN_TCP_PORT4="[ip of paid-for user]/32 27015"
> EXTERN_TCP_PORT5="[another paid-for ip]/32 27015"
> [and so on and so forth]
>
> and then pointed to the port 27015 server with
>
> [from /etc/network.conf]
> INTERN_SERVERS="... tcp_${EXTERN_IP}_27015_192.168.1.11_27015
> ..."
>
> but that only works for the EXTERN_TCP_PORTx ip with the highest
x-value
> (only the last referenced ip address can get in, none of the
others)...
> i'd like to allow only the ip addresses in the list to access port
> 27015, and it's not just a subnet.. it will be a list of (essentially)
> random ip addresses.  I think maybe ipchains can do it, but I'm
> extremely new to this whole lrp game.  Thanks for your help.

You're on the right track...what you list above ought to work (assuming
your
EXTERN_TCP_PORTx settings start with x=zero and increment with no
missing
numbers).

Can you provide the output of "net ipfilter list"?

Charles Steinkuehler
http://lrp.steinkuehler.net
http://c0wz.steinkuehler.net (lrp.c0wz.com mirror)



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