3Com 2426 PWR Plus VLANs

[poisondwarf]

I'm trying to get my head round setting up 2 new VLANs on my LAN. Currently have a 3Com 2426 PWR Plus connected to a Netgear GSM7352S (via fibre modules at each end).
I would like to create 2 VLANs on the 3COM. The first comprising the fibre port and 6 ports the second comprising the fibre and 3 different ports. The reason for this is to separate 3 wireless AP's (2nd VLAN) from the rest of the traffic.
Not sure whether to use tagged or untagged for which VLAN. When I tried using untagged I lost communication with the switch entirely and had to reset to factory defaults.
The ultimate goal is to create a VLAN on the entire network purely for the wireless AP's and the one server (on the netgear) that wireless devices need to access and another VLAN for the non-wirless devices

 

[MrNick0483]

From doing a little research on both of your switches, the Netgear that you have is capable of doing layer 3 routing. With that in mind you would want to enable the routing on the switch and then do 802.1Q trunks out to your 3com so you can pass tagged vlan information to all required destinations.

 

[SYQUEST]

Following the example in the 3COM user guide, I believe the Uplink port to the Netgear should be TAGGED, where the Desktop ports would be Untagged.

....JIM....

 

[MrNick0483]

you are right SYQUEST but the uplink port on the Netgear must be in 802.1Q trunk mode for all VLANS as well.

 

[poisondwarf]

Ok. I would like to connect the access points to a bridging firewall and then onto the internal LAN. I have a second fibre module in the 3Com switch now. Is it possible to use the VLANs on the 3com so that the 12 ports and one fibre module cannot communicate with the other 12 ports and fibre module unless they are connected either with a patch lead or by the switch at the other end of the fibre cable.

 

[SYQUEST]

Unless you are using a Layer 3 device, which your Netgear is, none of the VLANs will see or be accessible between themselves (VLANs). You will have to configure the router if you want anything special on the VLANs. The 3COM2426 is only a Layer 2 device. Your VLAN configuration should work for your WAPs from what I am able to glean from your description above. Any access from the VLAN to elsewhere (Internet) will need routing configured in the Netgear.

....JIM....