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Forum Discussion
GS110TP Vlan Configuration
I have what I consdire a unique situation
I am trying to confgirue my GS110TP to be used as a expansion uplink to a CISCO 3750 swihtc to be used for data and voice either on the same port on the GS110TP or seperate ports
Here is the layout
DATA VLAN = 11
VOICE VLAN = 17
GS110TP IP is 192.168.11.236
On the GS110TP I have confgiured port 1 on VLAN 11 uplinkged to the Cicso 3750 (Port confgiured for VLAN 17 / 11
On the GS110TP I have confgiured port port 7 and 8 for VLAN 17 (voice)
On the GS110TP I have confgiured port port 5 and 6 for VLAN 11 DATA
When I plug in a PC to port 5 or 6 the PC can see the network and the Internet
When I plug in a phone to ports 7 or 8, the phone never receives an IP address from the DHCP server
Preferably I would liek to plug in the phone and PC into the same port but if I have to split it out that woudl be acceptable
Any thoughts?
2 Replies
You should be able to tag both VLAN 11 & 17 on the uplink to the Cisco switch as well as on the ports to the phones.
IP phones are usually VLAN aware and have the ability to tag their traffic to a configured VLAN and tagged the traffic from their client port to another configured VLAN.
You obviously also need to have the correct tagging configuration on the uplink on the Cisco switch.
This is actually is very common configuration.
Agreed, the configuration you describe should be no problem. In terms of the tagging, you will need to admit tagged traffic for VLAN IDs 11 & 17 on the interconnecting Cisco<->Netgear ports (Cisco should be "switchport mode trunk" and "switchport trunk allowed vlan 11,17", Netgear should be a "T" on the port for VLANs 11 & 17".) Then set Netgear ports 5 & 6 as untagged "U" for VLAN 11 and ports 7 & 8 to untagged VLAN 17.
To use a PC & phone on the same port on the Netgear, you will need to configure that port as tagged "T" traffic for both VLANs on that port. Then, you will need to manually configure the phone to tag its traffic with VLAN 11 and tag traffic from the uplink port as VLAN 17. If the phone can't support uplink tagging, you will need to have the PC tag its traffic with VLAN 17 (most IP phones can tag their traffic, some PCs can through their Ethernet driver config in Windows)
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