Static IP Wan and Lan

[deramon]

I operate a small professional service company. I have about six computers and an NAS for data storage. These are all on a LAN with a Linksys router. I have static IP service with a local cable company, with five static IP's.

My problem is that four computers have two network cards, one is configured with a static IP and gateway. The second card is a dynamic IP issued by the Linksys router. I know that having two gateways is not proper but actually it worked pretty good for a few years. In the past couple of years I have problems with the devices on the network and connectivity.

I need the static IP's because several employees work from outside the office using Microsoft remote desktop connection. Using It allows fast connection and is just like physically being at that work station.

How can I configure my network to keep both needs? What I have now is not really working. Also I am not a network engineer, just a long term PC user with basic knowledge.

Thank you.

 

[SecurityTheatre]

I operate a small professional service company. I have about six computers and an NAS for data storage. These are all on a LAN with a Linksys router. I have static IP service with a local cable company, with five static IP's.

My problem is that four computers have two network cards, one is configured with a static IP and gateway. The second card is a dynamic IP issued by the Linksys router. I know that having two gateways is not proper but actually it worked pretty good for a few years. In the past couple of years I have problems with the devices on the network and connectivity.

I need the static IP's because several employees work from outside the office using Microsoft remote desktop connection. Using It allows fast connection and is just like physically being at that work station.

How can I configure my network to keep both needs? What I have now is not really working. Also I am not a network engineer, just a long term PC user with basic knowledge.

Thank you.

This is probably best asked in the networking forum. But in brief, you can use some routers to do port-forwarding. Unfortunately, your average cheap Linksys may not handle the VIP NAT that is required to do multiple-port fowarding, but you can always use different ports to accomplish it with just a single IP.

Honestly, having a Windows machine on the Internet without a firewall (as it sounds like you are doing) isn't the best idea, so I encourage you to look into a solution that involves port forwarding.