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Create 2 VLANs on 3Com 4200G with fiberconnection
I have one 3Com 4200G 48-ports (switch nr1) and a 3Com 4200G 24-ports (switch nr2) switch connected to each other with fiber with a 1000BASE-SX SFP TRANSCEIVER.
Switch 1 is the one in the central serverroom and is connected to all LAN servers and workstation.
Switch 2 is in a other building (office2) and is connected with fiber with switch 1. All workstations in this building can access workstations and servers in the serverroom that are connected to switch1. Switch 1 and 2 are 1 LAN.
At office2 there is a wifi internet router that supplies also dhcp. We want to use this internetconnection for our guests a both sides. I created a new VLAN (vlan2) on switch2 (ports 2,3,4,5,6,7,8,9), all other ports keeps default LAN ports. I connected the internet router to one of the vlan2 ports. That works fine. Every guestpc thats plugged in to one of the vlan2 ports gets an ip address from the dhcp server from the internet router. Till now everything works fine.
Now we also want this internet connection is reachable on the other side of the building. So I thought to create a new VLAN on switch1 (ports 17,18,19,20,21,22) and let this VLAN connect to the VLAN2 in office2. But Im totally confused of how to do this. I read 3com manual, read stuff like hybrid, trunk ports. But I stuck now.
Switch 1 is the one in the central serverroom and is connected to all LAN servers and workstation.
Switch 2 is in a other building (office2) and is connected with fiber with switch 1. All workstations in this building can access workstations and servers in the serverroom that are connected to switch1. Switch 1 and 2 are 1 LAN.
At office2 there is a wifi internet router that supplies also dhcp. We want to use this internetconnection for our guests a both sides. I created a new VLAN (vlan2) on switch2 (ports 2,3,4,5,6,7,8,9), all other ports keeps default LAN ports. I connected the internet router to one of the vlan2 ports. That works fine. Every guestpc thats plugged in to one of the vlan2 ports gets an ip address from the dhcp server from the internet router. Till now everything works fine.
Now we also want this internet connection is reachable on the other side of the building. So I thought to create a new VLAN on switch1 (ports 17,18,19,20,21,22) and let this VLAN connect to the VLAN2 in office2. But Im totally confused of how to do this. I read 3com manual, read stuff like hybrid, trunk ports. But I stuck now.
Mick Finley
The link between switch 1 and switch 2 needs to be tagged(802.1q) for v1 and v2. The ports to end nodes needs to be untagged.
ASKER
I would highly appreciate if you can guide me through the setup of tagging ports. I also need to know witch ports what configuration need. I can choose between "access", "hybrid" and "trunk".
ASKER
" The link between switch 1 and switch 2 needs to be tagged(802.1q) for v1 and v2. The ports to end nodes needs to be untagged."
I did this for switch1 and switch2:
I untagged the endstation ports for the vlans.
I tagged the fiberinterface for vlan2 but i can't do that for vlan1, it says: " not available for selection."
I did this for switch1 and switch2:
I untagged the endstation ports for the vlans.
I tagged the fiberinterface for vlan2 but i can't do that for vlan1, it says: " not available for selection."
ASKER CERTIFIED SOLUTION
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ASKER
I don't understand everything you write. I untagged allready all end node ports but i'm not getting done to tagged the fiberinterface for for vlan1, it says: " not available for selection."
I hope there's someone who has experiance with this...
I hope there's someone who has experiance with this...
ASKER
I found the solution. The 3com 4200 has much more settings and isn't very user-friendly. First make sure all end ports are untaaged and set the port type for the fiberinterfaces to type: Trunk. After you create the vlan on both switches you have to make sure the fiberinterface will listen to both vlan's. In my case, vlan1 and vlan2. The best way to do that is (for me) by the web interface.
- go to: Device > VLAN
- tab: modify port
- select membership type: Tagged
- select the fiberinterface-port (it will be marked blue)
- change "Select VLAN's to apply this change for" to: All Vlans and click on apply.
(you can also type in specific vlans) But in my case i want all vlans to pass this interface.
Mick shoot me in the right directions so he earned the points!
- go to: Device > VLAN
- tab: modify port
- select membership type: Tagged
- select the fiberinterface-port (it will be marked blue)
- change "Select VLAN's to apply this change for" to: All Vlans and click on apply.
(you can also type in specific vlans) But in my case i want all vlans to pass this interface.
Mick shoot me in the right directions so he earned the points!