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Hi list,
I apologize if this has been discussed before, I'm new to this list and could 
not find approriate help in the HOWTO nor could I read/find the list 
archive...

here is the problem: i have setup a linux (kernel 2.2.14) router with
ipchains firewall as described in the firewall HOWTO, it works ok. for
most apps, but it refuses to let a win98 client to play counterstrike via 
internet.
my /var/log/messages contains lines like this:

Jul 14 21:19:46 router kernel: Packet log: output REJECT ppp0 PROTO=17 
62.96.171.207:61011 216.52.220.16:27010 L=33 S=0x00 I=40449 F=0x0000 T=127 
(#33) 

from which I can see that there are packets for port 61011 and 27010 which 
are rejected. I also noticed, that the corresponding IP adresses change 
randomly, so it would not be useful setting up rules for certain IP adresses.
in addition, port adresses vary from 61000 to 61500, 27010 seems to be fixed.
to reflect this, I have tried the following lines in my firewall script:
    
    # ----------------
    ipchains -A output -i $EXTERNAL_INTERFACE -p tcp  \
            -s $IPADDR $UNPRIVPORTS \
            --destination-port 61000:61500 -j ACCEPT 


    # ----------------
    ipchains -A input -i $EXTERNAL_INTERFACE -p tcp  \
            -s $IPADDR $UNPRIVPORTS \
            --destination-port 61000:61500 -j ACCEPT 

and the same for the 27010 ports, but it doesn't work either.
any hints would be appreciated.
werner

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