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Forum Discussion
rand__
Jun 18, 2017Aspirant
Same VLAN on two switches (S3300's) will not communicate
Hi, probably its just a stupidity issue on my side but I can't get this to work. I am trying to get two boxes to communicate over two switches using a particular vlan. This is actually the simplifi...
- Jun 28, 2017
That's correct. Functionality of VLANs is to separate the actual/physical networks. VLANs also have a default gateway even if it is set to static and even if they are working on the same subnet. You should have a default gateway(router) configured if not the traffic will not route across the network. Have you tried the setup that I suggested? That is also how VLAN works even if you use different switches. Every network has its own default gateway even if we are not talking about VLANs.
Regards,
JohnC_V
Jun 21, 2017NETGEAR Employee Retired
Hi rand__,
Welcome to the community!
It seems that we need to pass VLAN 6 on both switches and I notice that you don't have a trunk going to your firewall/router that will provide dhcp or default gateway for VLAN 6 devices. You may try this setup:
e.g.
Switch A
g1 - T (VLAN 6) - PVID 1 - goes to Switch B
g2 - T (VLAN 6) - PVID 1 - goes to Firewall/Router(it should have VLAN 6 and the port should be set as trunk)
Switch B
g1 - T (VLAN 6) - PVID 1 - goes to Switch A
g2 - U (VLAN 6) - PVID 6 - goes to the Windows Box
Basically, VLAN aware devices should be set as T and for non-VLAN aware devices should be set as U then specify the PVID.
You may also open a case/chat online on NETGEAR support to further assist you setting up this VLAN.
Regards,
rand__
Jun 22, 2017Aspirant
Hi JohncarloV,
thanks for your answer.
I would think that I wouldnt need to define a gateway if all VLAN 6 members are on the same L2/Subnet? I've been assigning static IPs for this in the same /24 Class C subnet, so there should be no routing involved. Since this is a flat/single subnet there is no default gw to add in the first place (as none of the switches would qualify as router/have a routing interface).
Is that a misconception on my side?
Happy to try your setup o/c if you think this might resolve the issue, but would not really cover the final solution design I was looking for to be honest.
Thanks,
regards
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