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Author Topic: Why can't we forward two different external ports to one internal port?  (Read 4251 times)

V@nо

  • Level 1 Member
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  • Posts: 14

Hello.
I'm trying setup "Internet access to home media" which is a new feature of Windows 7. The help file says that it needs two ports to be forwarded:
external 44948 to internal 10245
and
external 443 to internal 10245

As you can see the internal port is the same, so when I try add new rule in the router it gives me error:
Quote
'Media Share' [TCP:44948]->192.168.10.212/10245 conflicts with 'Media Share2' [TCP:443]->192.168.10.212:10245.

Technically I don't understand why router wouldn't let it happen, why would it care which part forwarded to which port?

Have anyone successfully setup internet access to home media?

Thanks
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Trikein

  • Guest
Re: Why can't we forward two different external ports to one internal port?
« Reply #1 on: October 09, 2010, 12:09:14 AM »

Well because your not forwarding it. A forward is when certian traffic is assigned to a certian port on your WAN, its assigned to a certian IP with the same port. What you need to do is set up a trigger that when port 44948 is triggered on your WAN, that traffic is assigned to a different port on your LAN. The conflict is your trying to direct two ports on the WAN to the same port on your LAN. A trigger will only activivate on request, while a forwarding acts all the time.

First, you might want to look at your ISP's TOS, and see if this is allowed. Many ISP's block some of these ports to stop you from hosting a server from your house, and since that is what your looking to do (albeit a small one) they may frown apon it.

With that said, you will need to use the Virtual Server Function. More info can be found here Good luck
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V@nо

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  • Posts: 14
Re: Why can't we forward two different external ports to one internal port?
« Reply #2 on: October 09, 2010, 11:41:43 AM »

Thank you for the reply.

The virtual server is what I've been using in the first place and is what was giving me the error message.

The triggering thingies you've mention is in "Application Rules" but it doesn't look like the place this has to be done...
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