Not another VLAN question!

[Jobos]

I've spent some hours reading the forums looking for information about VLANS. I now have a slight understanding but still not 100% sure that it will work as expected.

 

What I'm trying to achieve for now anyway is to VLAN the impending 13 VoIP phones from the rest of the network.

 

At the moment the network is completely flat /23 with 10 switches, 8 managed and 2 unmanaged in 5 cabs. The phones will all be connected HP 1910 which is connected to a Netgear 7224 which the router (Cisco 800 series) connects to. As the Netgear is only a layer 2 switch I wasn't sure what to do next but found a post about using an additional port on the router so I could use a different IP range.

 

Please could you look over my plan and point out the errors

 

Create a new VLAN on the 1910

Set 13 ports to use new VLAN and remove default VLAN from these ports

Tag the uplink port with new VLAN and default VLAN

 

On the 7224 create new VLAN with 1 port that removed from the default VLAN

Tag the uplink port that connects the 1910 to 7224 with the new VLAN and default tags

Connect said port to the additional port on the router

 

How many mistakes have I made?

 

Thanks in advance

[Steve21]

From how you mentioned it if all the phones are on a seperate switch why do you need vlan routing? As it isn't leaving that vlan, unless I'm missing something

 

Unless I've misunderstood what you mean it sounds like our old system that's on a seperate switch that doesn't touch the main network

 

Apologies If im missing an obvious here lol

 

Steve

[FN-GM]

@Jobos what is going to be your layer 3 device? Your Cisco router can do it. You do not need a spare port, you can configure an existing one as a trunk (802.1Q) with sub interfaces. Not sure how trunking works on Netgear and HP but the uplinks between them will also need to be trunked in some way.

 

From how you mentioned it if all the phones are on a seperate switch why do you need vlan routing? As it isn't leaving that vlan, unless I'm missing something

 

The PBX might be a on a different VLAN. If its not and the PBX is on the same it may need routing to connect to the internet.

Edited October 30, 2015 by FN-GM

[Jobos]

@Steve21 the reason all the phones are connecting to the HP 1910 is because it is the closest switch and it will still be used for connecting the PCs in that area. My fault for not explaining more.

@FN-GM the layer 3 device is the router and planning to ask Kcom for another network address just for the phones and the new VLAN.

[Jobos]

So based on the above information what would be the best way forward for me as I don't have access to the router and no layer 3 switch. I really need something simple that a novice to VLANs can do?

[Steve21]

Where are things like your PBX etc? Is it physical/virtual?

 

Unless the phones are on the same VLAN as the PBX you need some routing in place, which only routers/L3 or higher can do.

 

So if the PXB is on another VLAN (or needs access externally), you need access to those devices. If it's only internal access and the PBX is on same LAN you wouldn't need routing etc.

 

When you say no access to the router, is that a LEA one etc? As they can do the changes for you normally if you request it.

 

Steve

[Jobos]

@Steve21 Kcom look after the router and my first thought was just to enable one of the unused ports and have a second subnet, VLANed just for the phones.