•Edit your ipfw rules list (usually something like /etc/rc.ipfw) . In there somewhere, you should have a rule that diverts all traffic to natd, which should look something like:
${fwcmd} add divert natd all from any to any via ${natd_interface}
•Below this, add as your next rule:
# Direct Connect Active Mode Port Forwarding
${fwcmd} add pass all from any to any 1776 via ${oif}
${fwcmd} add pass all from any to any 1776 via ${iif}
•For "1776," replace any port (preferably something above 1000) that you would like as your forwarded port. Save and close /etc/rc.ipfw.
•Next open up your /etc/natd.conf file. Make sure the top line has your interface listed (replace "de0" with whatever your outside interface is):
interface de0
•Then add the following two lines at the end:
redirect_port tcp 192.168.70.2:1776 1776
redirect_port udp 192.168.70.2:1776 1776
•For 192.168.70.2, substitute the internal IP of your machine running DC++. For "1776," substitute whichever port you used above in your /etc/rc.ipfw file.
•Finally, we need to reset ipfw and also natd.
Type: ps aux | grep natd
•Find the process # for natd. Now we need to kill the process and restart it:
Type: kill -9 && natd -f /etc/natd.conf
•Last step, time to reset ipfw to make sure our traffic gets through:
/sbin/ipfw -f flush
/bin/sh /etc/rc.ipfw

Submitted by SeeKay303

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by USR56K edited by JMGullett
last modified: 2007-01-29 16:11:23