Hi: OK, am not quite sure what some of that means, but I'll give you my suggestion. Firstly, you only need to forward 2074 and 4074. Forwarded ports are only those that need to make it back to the internal host, and therefore only need to be the ones that sfspeaker uses. This might sound wrong to you, but I've been behind a machine using the uredir program doing this and it worked just fine. So now I'll borrow a line I used to get buddyphone working and modify it for your purposes. I presume the IP you gave is your internal machine. ipmasqadm portfw -a -P udp -L `ipofif ppp0` 2074 -R 172.20.50.100 2074 ipmasqadm portfw -a -P udp -L `ipofif ppp0` 4074 -R 172.20.50.100 4074 OK, so what's the `ipofif ppp0` thing? Well, ipofif is a debian script that comes with the debian ipmasq package which gives the IP address of a particular interface. It's a pretty simple script and I include it below for your interest and perusal. Putting it in accents means that the output of the script is to be used in the command line, pretty neat hey. I don't know if it actually needs to be there, but it doesn't hurt. So this command simply says, forward this UDP port 2074 from the PPP0 interface to the internal machine on port 2074. Pretty self explanatory. I note that ipmasqadm uses different modules to get its jobs done, so the autofw module may have different commandline options and thus might do (or be close to doing) the above. Then again, they might all use the same ones in which case, it seems you were a bit off the mark. Oh and consult the ipmasqadm man page as you need certain stuff compiled into the kernel and it's all listed there which saves me trying to remember it all. Geoff. Script follows: #!/bin/sh # # ipofif Determines the IP address of the interface given on the # commandline # # v1.0 19 July 1998 # v1.1 12 June 1999 ##### export LC_ALL="C" /sbin/ifconfig $1 | grep 'inet addr:' | sed 's/.*inet addr:\([0-9.]*\).*/\1/g'
