Network within a network

[bogsdolox]

I have an office in a shared business suite. Network connectivity is provided as part of the service. However, I can see other computers on the network that are not in my organisation and I know that they can see mine. As a result I have no shares set up and no remote access. This is holding me back and concerns me about security.

I attach to the business suite network directly into a hole in the wall. I have no router and/or firewall.

My current IP addresses are 192.168.1.x and 192.168.1.y.

How can I best prevent access from others whilst opening up my network to be able to share etc and reatin internet access?

I have tried a few old spare routers but get confused with ip addressing and subnets... or am i confusing myself??

 

[Silverhazesurfer]

A router is necessary if you plan to change the subnets. Basically, it will translate information from 10.X.X.X to 192.X.X.X. Otherwise you will never get to the internet.

I would look for a firewall/router...perhaps even one that runs a VPN so you could have remote access from home (for example).

What type of address is assigned to your machine when you connect it to this "direct" internet connection?

 

[bogsdolox]

The ip address that is assigned to my PCs is 192.168.1.x. I do not see and 10.x.x.x addresses.

Could you suggest a router that would work?

What settings would i use?

 

[Silverhazesurfer]

the 10.X.X.X was an example of wildly different networks. Really, only one bit off from the subnet scheme will prevent access.

Something like this would work. http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=405220&CatId=198

If you have a small PC, you could install Untangle. http://www.untangle.com/ That may be out of your league though. I don't know what your proficiency is with computers. I use it here for the office and it does very well.