Need same port for 2 ips

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xdeamon
Posts: 2
Joined: Thu Apr 12, 2012 2:11 pm

Need same port for 2 ips

Post by xdeamon »

Hi Guys

My laptops static ip is 192.168.1.130 and my ps3 is 192.168.1.131

I need to port forward for example port 443 on both

Is there anyway to do this on the 7800N?

Thanks

Keith
admin
Site Admin
Posts: 92
Joined: Mon Jul 04, 2011 2:53 pm

Re: Need same port for 2 ips

Post by admin »

This looks to be a bug as it is not possible to forward the same external port to two different LAN machine, well at least on the 7800N or Billion routers.

The explanation is because the router will not know which device the traffic should go to if the external listening port is the same.

Why do you need the same port to forward to two different LAN IP? What's the application?

Most people with multiple webserver on the LAN for example will use port redirection so you basically use a different external listening port e.g. port 81 and 82) but then the router can redirect it to the same port 80 on the different LAN webserver. This is possible because each LAN IP has its own port 80 and unlike WAN has only one unique port shared by all LAN devices externally.
xdeamon
Posts: 2
Joined: Thu Apr 12, 2012 2:11 pm

Re: Need same port for 2 ips

Post by xdeamon »

the application is msn on the laptop and the ps3 needs port 443 aswell

is the anyway I can do this? they won't be used at the same time

thanks

Keith
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