We are working on setting up a Voip phone system and I am looking at setting up VLAN's on our switches to allow for a tagged vlan for our voice network. Here is what we have:
Core switch HP 3500yl - This switch is our main switch that our servers and other switches connect back to
We have 3 x HP 2626 - These switches connect the phones and the computers back to the core
Our data network runs on the default untagged network and I would like to create a tagged vlan for use on the phones.
default vlan = 10.0.0.x/24
voice vlan = 192.168.11.x/24
I have the tagged vlan running on the 3500yl and the phones with integrated switches are working at the moment but I can not get the voice vlan to work on the edge 2626 switches.
I am not sure what should do the routing and what the default gateways need to be setup as.
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by: cscocscoPosted on 2008-03-21 at 17:13:19ID: 21184117
Hi!
Routing should be done in the HP3500. Be sure the interfaces on the 2626 switches that are connected to the 3500 are tagged for voice VLAN. The same for the interfaces on the 3500 that connect to your 2626's. The 2626's are not routing. The default gateway for the voice VLAN should be the IP address you setup for the Voice VLAN on the 3500. The default gateway for the 10.x.x.x network should be the IP address you setup for the other network in the 3500.
Here's an example for an HP switch set up for routing between 802.1q VLAN's.
--------------------------
ip routing
vlan 1 <<connection to router>>
name "Router"
ip address 10.20.108.2 255.255.255.252
tagged 1-3,7-8
no untagged 4-6
ip proxy-arp
exit
vlan 2 <<Voice Network>>
name "Voice"
ip address 10.200.108.1 255.255.255.0
ip helper-address 10.20.108.1 <<address of the device providing DHCP for VoIP>>
tagged 1-3,7-8
ip proxy-arp
exit
vlan 3 <<Main Network>>
name "Main"
untagged 1-8
ip address 10.108.1.1 255.255.0.0
ip helper-address 10.108.1.10 <<address of the device providing DHCP for the regular network>>
ip proxy-arp
exit
--------------------------
Hope this helps...