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5308 VLANs

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May 19, 2004
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OK, I am pretty well familiar with VLANs and the routing principle of the routing between. I am not real familiar with the HP5308 switches. I have a new customer that has 0 knowledge of VLAN and he has these switches. Can anyone help me with a quick cheatsheet to set up a couple of VLANs for his new network.

As an example, he will have the native data VLAN1 and an Avaya IP Phone on Tagged VLAN2. There will be two vlans per port except for the servers on the network. That means the vlans will have to route.

VLAN1=192.168.1.xxx (Untagged)
VLAN2=192.168.2.xxx (Tagged)

The PC will plug directly into the built in switch on the IP Phone. I must be able to route between VLANs since that is the case.

BONUS QUESTION...As a side note and ??? This customer has 2 buildings and three physical network segments. In other words he will have three different areas with switches that will physically link to the main switch via fiber. Does anyone know how hard it would be to set up each building on different data VLANs and Voice VLANs? I know it is easy to accomplish with the data VLANs just needing one IP Scope, but I was hoping for troubleshooting purposes to actually use a few different scopes for the voice calls in the three different areas. This may not be possible since he only has one dhcp server on the network and the IP Phones depend on option 176 being in the data scope to route to a different vlan and pick up an ip adress form the voice scope.
 


You must turn on:
1. IP routing on the switch
(conf)# ip routing <cr>

2. In the DHCP server use options in the data scope to tell the IP Phone to boot into the Voice VLAN.
Option 176
46xx Options
TFTPSRVR=X.X.X.X, L2Q=1. L2QVLAN=(VLAN OF THE VOICE)

3. Use IP Helper addresses on the voice vlan, so when the phone boots into its correct VLAN is will broadcast out for a DHCP server and the IP helper address will service the request.
Voice options should be set to:
176
46xx options
Vendor=standard
MCIPADD=X.X.X.X,MCPORT=1719,TFTPSRVR=X.X.X.X

If you want to use different subnets for each of the buildings simply use the IP Helper Address pointing to the DHCP server that has the scope to service that subnet.

This will work

Nice

 
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