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My business is growing so I've decided to purchase a second DSL line, to separate two departments to allow for more bandwidth usage.

Previously I had a network printer that served both departments. With the addition of the second DSL line, I'm potentially going to have two separate LANs.

How can I set it up so that the new LAN still has access to the Network Printer, but ensure that they are still using the new DSL line?

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You can probably achieve this with what you have, please can you provide the make and model of the existing router? – Paul Jun 16 '12 at 0:52
It's a bit of a No-Name, Black Box, all I know is it runs – ndavis Jun 17 '12 at 21:29

Using a couple of VLANs with separate default gateways but sharing internal routes could accomplish this. You can use a couple of routers with DD-Wrt installed to create the VLANs.

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