Connecting Wireless Router to Switch?

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techiejay

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Jun 4, 2014
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Hi All,

I'm moving into an office and have been provided with a single CAT5 lead which comes from a switch in the main corridor, to provide me with internet access. My question is can I connect a wireless router to this cable somehow in order to create my own network in the office, off the back of their connection? If so, do I need a router, a modem router or another switch? I'm led to believe that the connection from the switch is coming straight from their modem - there's no servers involved here.

Any advice would be great, thanks!

J
 
Solution
abailey
Is this a landlord giving you a line for internet access or is this a company your work for giving you a connection in your office? Either way the answer is maybe. Where I work we lock the wired ports down my MAC address. So once a device is plugged into the cable and the MAC address is learned, that is the only address that can be used on that port unless we reset it. If that is how it is where you are, then you may still be able to get around it by using MAC cloning which many Wifi routers support. It sounds like in your case if you were to get a wireless router then it would probably work (even if you had to clone your PC MAC address).
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abailey

abailey

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Mar 23, 2014
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Is this a landlord giving you a line for internet access or is this a company your work for giving you a connection in your office? Either way the answer is maybe. Where I work we lock the wired ports down my MAC address. So once a device is plugged into the cable and the MAC address is learned, that is the only address that can be used on that port unless we reset it. If that is how it is where you are, then you may still be able to get around it by using MAC cloning which many Wifi routers support. It sounds like in your case if you were to get a wireless router then it would probably work (even if you had to clone your PC MAC address).
 
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techiejay

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Jun 4, 2014
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Hi, thanks for the quick response! This is a connection being given to me by the landlord - from what I can see it's coming from a small unmanaged Netgear switch that's been screwed to the wall outside. They're pretty basic office units so I doubt there's anything clever going on with MAC addresses, I assume that a wireless router that's designed to be used alongside a modem (so is expecting internet to be coming in on a CAT5) would be my best bet, rather than a broadband router?

Thanks

J
 
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abailey

abailey

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That is correct. Broadband router is not what you need, but one that has an ethernet CAT5 connection for its WAN port.

 
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Alabalcho

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Jan 13, 2011
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It depends on what is "running" on this connection - it could be already behind a NAT/Router, and you can use simple Ethernet switch/hub (or WiFi access point), or it could be with "real" external I/P address, and you need a router as well.

Connect that cable to well-protected PC (at least one with firewall enabled), and see what IP address you're getting off that connection, and whether you can see other tenants' PCs.
 
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