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  Asked: Feb 17 2008   11:18 AM GMT
  Asked by: Welshone

Static ip setup advice


Networking, IP addressing, Routers

Hi,

Im new to this side of things so any help appreciated..:)

The router i have is a 3com Office connect adsl modem/router 3crwdr200a-75.

My isp provides me with 5 static ip address`s and what i would like to do is route some of these ip address`s to different pc`s i have so that i can run a ftp server, web server etc

Sorry if the explanation is not very good.

Many Thanks

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Last Answered: Feb 17 2008  9:02 PM GMT  by Mrdenny




I'm not familiar with that specific router / DSL modem, but within the admin screen you'll be looking for something which says NAT or port forwarding.

You'll need to assign each machine which you want to setup NAT (Network Address Translation) for with a static LAN IP (192.168.1.3 or what ever fits within your network setup), then assign within the NAT or Port Forwarding screen from the public IP that your ISP gives you to the private IP. Only open up the needed ports, not all of them. Opening to many ports is a security risk and will allow people access to services which they should not be accessing.
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Welshone  |   Feb 18 2008  3:31PM GMT

Many thanks for the reply, I tried that and still couldnt connect, what I later found was the answer for this type of router which someone else may find useful:

What you have to do is run the setup wizard and put in the static ip given by the provider also the subnet mask, then disable nat and change the router ip to the static ip from provider, then in the dhcp you can enter the range of static ip address`s given by the provider.

Then on each pc on the network give each one one of the static ip address`s and dont forget to give it the same subnet mask as well and the default gateway would be the routers ip address..

Long winded i know but it works..