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Make 2 VLAN in a 3com switch using only one port to the entire network


I have a 3COM 4200G switch. I need to do 2 VLAN. One VLAN including all ports to use PCs and other VLAN including only one port to use an IP Phone. The problem is that the IP range of PCs and Phones are different and switch has only one port that communicate with all network.

How can I make that traffic of both vlans go to the network using the same port?

Thank you!
Network Management

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Mick Finley

8/22/2022 - Mon

the easyest way is to give your router secondary lan IP address to be apple to route traffic, this will make switch understand the traffic even there is just one port

Thank you for answering. The router has secondary IP configured. In the network there are many other switches and IP phones sharing network with PCs using two different IP ranges.

But the problem is that I don't know how to configure this switch to make the traffic of the VLAN2 goes to the main network through the port that VLAN1 uses to communicate with main network.
Mick Finley

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Mick Finley

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