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.  
 -david


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