Between the 2 separate companies sharing router

I'm helping someone to share a router between the 2 separate companies.  They have a linksys E2500 and 2 companies (their own and the neighbouring company) the two connection, either wired or wireless, to the same router.

They were not aware that this meant guys next had access to computers in their network / and now are asking if there is a way to separate the 2.  So to share the Internet, but limit each group to only have access to their own computer.

Now, I knew that the current configuration was wrong, but would need advice on what needs to be done at this stage to ensure that each group.  You can create a group for each and be fixed?

Thank you.

Low-cost solutions:

1)

  • If the ISP has provided a modem which has capabililes built routing in and multiple LAN ports. Then use the device as the main router ISP and if it has wireless disable.
  • Install the E2500 in one place and connect its WAN port to the device of the ISP.
  • Install another router cheap wireless in the other location linking its WAN port to the device of the ISP.
  • Make sure all firewalls are enabled.

2)

  • Buy two inexpensive routers.
  • Keep your E2500 is the main router and disable it is wireless.
  • Install inexpensive routers at each location linking their WAN for the E2500 ports.
  • Make sure all firewalls are enabled.

The reason that you can not do with the E2500 without additional hardware, it is that it's wireless cannot be configured for the RLV or with insulation wireless. Basically any device connected to the wireless access to any other device wireless and theres no way to change this behavior, I know.

Tags: Linksys Routers

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