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Vlan tagging - newbie question 2

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Bujitsu

MIS
Oct 23, 2003
67
AU
Hi,

I have a ip telephone (not Cisco) that that has a 2 lan ports 1 for connection to a swtch and another port for a pc. The ip phone can set the vlan id (say vlan 10), but the pc cannot set the vlan id, however the PC must be in vlan 20.
How do I set up the cisco 3550 port to enable traffic to flow to the correct vlans?

Regards.
 
Usually the IP Phone expects the PC to send un-tagged packets, it is the access VLAN the switchport is in that determines which VLAN they are on.

interface FastEthernet0/1
switchport access vlan 20
switchport mode access
switchport voice vlan 10

This configures the switchport for what you require. It creates a psudo-trunk if you like, that has one tagged VLAN (Voice) and one untagged VLAN (Access). Usually the trickiest part is getting the IP Phone to discover the Voice VLAN automatically....

HTH

Andy
 
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