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Author Topic: aMule, pbG4 & airport extreme  (Read 2466 times)

leelinn

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aMule, pbG4 & airport extreme
« on: March 29, 2006, 12:06:58 PM »
Hello to everyone.
this is the  second chance to solve my problem (i posted the same thread in italian...yes i'm italian..i apologize in advance for my bad english! :baby: )

Ok

I have 2 pbG4s with airport extreme card.  The first pb is connected to a Netgear DG632 (firmware version 3.6.0 - the last available). The second pb receives adsl/internet connection from first pb by airport extreme card. Both pbG4s have installed Mac OS X 10.4.5

Netgear IP 192.168.xxx.xxx
1 PbG4 IP 192.168.xxx.xxx  -->same IP LAN --so router and PbG4 are part of the same LAN
2 PbG4 IP 10.0.xxx.xxx---? network window in system preferences show me as router IP 10.0.xxx.xxx (i think this one is the IP of first airport extreme card).
Both aMules use different ports for tcp/udp services. Both mac os x firewalls are set for respective ports forwarding

First mac give me no problem with aMule: HIGH ID and KAD OK...perfect!!! (this was easy: netgear firewall is easy to set up!!..very very easy)

The problem is second pbG4. It's impossbile to assign the same IP series of LAN 192.168.xxx.xxx so the rules setted into Netgear have no effect. In fact, aMule shows LOW ID and KAD firewalled.
I think that the only way to reach a good result is to set service for router 10.0.xxx.xxx but i don't know how do this....is it possible to set ports of airport extreme card?

pls help

lee
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ken

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Re: aMule, pbG4 & airport extreme
« Reply #1 on: April 02, 2006, 07:50:07 AM »
Well, this is fairly similar to the problem discussed in this thread.  Your first PowerBook is acting as a router between your NetGear and your second PowerBook.  You need to configure the NetGear to forward data which comes in on the ports used by your second PowerBook to your first PowerBook.  Then you need to configure your first PowerBook to forward those ports to your second PowerBook.  That's the question, though: how to do that?

I don't know of an easy way.  The software within Mac OS X that allows it to act as a router is called "natd".  You can read its man page from the Terminal and try to configure it, but it's not simple.  Mac OS X Server has a GUI tool to configure the NAT function, but the client version of Mac OS X doesn't.

Hmm, it seems that IPNetShareX may meet your needs here, and it seems like it's free for non-commercial use.
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ken

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Re: aMule, pbG4 & airport extreme
« Reply #2 on: April 02, 2006, 09:51:46 AM »
So, I downloaded IPNetShareX and it does not provide a GUI for configuring port forwarding.  It seems that IPNetShareX only assists with certain simple configuation of the natd program that comes with Mac OS X.  This is the same program that is enabled by Apple's Internet Sharing technology.

Nevertheless, I think you want to use IPNetShareX instead of Internet Sharing, anyway.  The reason is that when natd is run by IPNetShareX it pays attention to /etc/natd.conf, but when it's run by Internet Sharing it doesn't.  I think.  What this means is that setting up port forwarding "sticks" (persists across reboots) when using IPNetShareX but might not when using Apple's Internet Sharing.  I think (again).

Anyway, the makers of IPNetShareX provide some simple instructions for enabling port forwarding using natd.  In theory, these instructions are natd-specific, not IPNetShareX-specific, so they might work with Apple's Internet Sharing, too.  Or, they might not.  You could try following the instructions first, before switching from Internet Sharing to IPNetShareX, to see if they do the trick.  Be sure to test if they work across a reboot.
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