On Cisco SG300 I CAN exclude (or forbid) DEFAULT VLAN1 on switch ports!That's not a question and yet you say:
This is whole question.Please pardon my confusion.
By default, VLAN 1 is the managementSo, it may be advisable to keep VLAN 1 as the management VLAN just to avoid more work and resulting confusion (and/or bugs!).
VLAN, but this can be modified. When operating in Layer 2 system mode, the
device can only be reached at the configured IP address through its management VLAN.
Ok works.. Other switches change the PVID together with the "untagged"-VLAN. 54.36.60.191 54.36.60.191
I see "WAN" mentioned with VLAN 5 - so that suggests it.
Also "LAN" mentioned with VLAN 10.
Also, Untagged is on VLAN 1.
Without being able to move around the interface and look at other displays, my guess is:
- The switch is operating in Layer 3. I generally don't do that so I'm at a disadvantage here for you.
- There is a WAN and a LAN but I don't know if there is NAT. I suspect NOT in this case but that could be wrong.
Anyway, that might well explain why there is traffic between ports.
There may be DHCP relaying turned on.
etc.
In my set of preferences, I would run the switch Layer 2.
I have no idea why all the VLANs. I see no need for any but the default (VLAN 1?).
Maybe an idea of what you're trying to accomplish with this?