Can't reach GUI on GS308E over VLAN trunk port

Question

I have a simple network with two VLANs, 1 and 15. VLAN 1 is the general LAN. Most ports on my switches are in VLAN 1, untagged as that's the VLAN most devices talk to each other on.

So I configured my GS308E to have the two VLANs, 1 and 15 set port 1 to tag both VLANs and all other ports to be in VLAN 1 untagged.

Devices from anywhere on my network on (untagged) VLAN 1 ports can reach devices on the GS308E's untagged VLAN 1 ports. So all in all, VLANs and tagging/trunking are working.

The problem comes when I try to reach the GS308E's web UI from a VLAN 1 port anywhere on the network except the GS308E. It cannot be reached. It can be reached when physically connected to the GS308E.

Now, if I unplug the trunk cable, and instead plug one of the untagged VLAN 1 ports of the GS308E into an untagged VLAN 1 port on another switch, I can access the GS308E's web UI from anywhere else in the network, even on machines not connected to the GS308E's untagged VLAN 1 ports, but connected to some other switch in the network.

It feels very much like the web UI is not bound to VLAN 1 on the GS308E, but I wonder then why it can be accessed from ports on the GS308E that are assigned to VLAN 1, or can be accessed from VLAN 1 ports on other switches but only if the "uplink" to the GS308E is untagged.

brianjmurrell · Answer

I guess it's a question of knowing what chipsets different products are being made from.&nbsp; Which the common person simply doesn't know.&nbsp; 😞&nbsp;Real bummed about this.&nbsp; I guess this is going have to just end up a dumb switch.

schumaku · Answer

The simple controller design is not workable over tagged trunks.

brianjmurrell · Answer

Ugh!&nbsp; Really!?!?&nbsp;So deploy one of these switches anywhere in an existing network a never again reach it without walking over to it with laptop?&nbsp;Well, I suspect it won't even get an IP from a DHCP server over a tagged trunk also, right?&nbsp; So definitely no reaching it.&nbsp;Is this common?&nbsp; Do other brands (tp-link, etc.) of similar switches have the same limitation?

schumaku · Answer

brianjmurrell&nbsp;wrote:
Well, I suspect it won't even get an IP from a DHCP server over a tagged trunk also, right?&nbsp; So definitely no reaching it.

Correct.
&nbsp;
brianjmurrell&nbsp;wrote:
Is this common?&nbsp; Do other brands (tp-link, etc.) of similar switches have the same limitation?

All the product lines built around the same chipset series, implemented and offered by various brands, are affected.
&nbsp;
Switch designs build on real fully blown managed cores. Keep your eyes open.
&nbsp;
&nbsp;

fitz17 · Answer

I don't know if this will help or not but I'm currently using 7 VLANs in my network and have been controlling my switch remotely through a trunk port. I'm new to Netgear products so I may or may not be correct on my assumptions.&nbsp;From what I've gathered is Netgear treats VLAN 1 as a management VLAN. Currently I have G1 configured with a PVID of 1 and all the other VLANs trunking over it. I statically assigned a IP from the VLAN 1000 subnet but DHCP was working when I initially set it up. When I initially set it up I had some issues with the VLAN/Firewall setup on my router. By any chance are you moving from one subnet to another and getting caught by a firewall rule? I access the web GUI from a desktop in VLAN 1000 that is plugged into my router.&nbsp;&nbsp;&nbsp;

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Can't reach GUI on GS308E over VLAN trunk port

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