Cisco 871 Router VLAN

[odannycx]

Hi,

I am trying to configure 2 VLANS on my Cisco 871 router. VLAN 10 & VLAN 20.

VLAN 10 is for my VoIP.

VLAN 20 is for my Data.

My physical connection is this: ISP > Cisco 871 > Unmanaged Switch > All Devices

So I have My ISP connected to FastEthernet 4 & I have my Unmanaged Switch connected to FastEthernet 1 .. All my network devices are connected to that unmanaged switch.

What I want to do is tag all my cisco SPA IP phones with vlan 10. And have that port Fe1 do some sort of subinterface.

I'm not sure how that would work...

Can Anyone tell me what I'm trying to do is possible?

& If so. How?

[Leo Laohoo]

Not sure if your unmanaged switch can understand any other VLANs other than VLAN 1.

[narcis antonie]

It does not. A unmamaged switch cannot work with dot1q. He has to get a managed switch in order to create Vlans.