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Forum Discussion
CabelModem>Switch>RBK & RBR
I am currently running an RBR network at one property. I’ll be installing an RBK network at another property that will eventually inherit the RBR hardware. Is it possible to connect a cable modem ...
matiernoII wrote:
Is it possible to connect a cable modem to a switch and then connect the RBR & RBK to the switch to run two independent networks?
No. Typically the ISP only allow one device where it will assign a public routeable IP address (required for the router operations) so only one router can be used at a time. Few ISP might allow more than one public IP by assigning a small subnet of public IP addresses, typically on business contracts (or when subscribing to add-on services). In this case, the ISP might not assign these addresses dynamically (talk to your ISP about details), so you might have to program the additional address and subnet and default gateway, DNS, et all manually following the installation information.
Alternate approsch with two routers would be connecting one of the two Internet/WAN ports to the LAN port of the other router. This will make that LAN an intermediate subnet.
However, operating two wireless backhauls and two wireless networks on a small space can be very ineffective, causing interference and massive amounts of collisions/retries: There is simply not enough bandwidth available on the very limited free 2.4 and 5 GHz bands to operate everything on independent channel sets. Further on, that hard splitting the two networks can and will lead to limitations where devices can't be seen or shared, say for example printers, media players, or you need to change the wireless connection to talk to the "other" network.