I have a situation where I have a switch with 2 vlans, that needs to connect to an upstream router -- which does not and will not know abut my VLANS (this is in a datacenter, where I cant change this directly).
I have 2 vlans:
- VLAN 1 - Internal management traffic
- VLAN 24 - External traffic
Essentially, I want the port which connects upstream to
- Assign untagged incoming traffic as VLAN 24.
- Untag all outgoing traffic (only VLAN24, VLAN1 can be dropped).
I have read many conflicting things online as to what happens when untagged traffic arrives on an ACCESS or TRUNK port. How does this behave for each?
I currently have this set to ACCESS UNTAGGED with a PVID of 24. Is this correct?