I have a strange problem while using MAC based VLANs on a CBS350.
I have two VLANs (100 and 400) each running DHCP servers (with router on 10.20.30.1 and 10.20.40.1).
Where I have access ports on 100 and 400 all is as expected. Both VLANs give my clients DHCP.
I have some General ports which are untagged 100 and tagged 400. I have an ingress filter on these ports that routes specific MAC addresses onto 400. On these ports a non-specific MAC address correctly receives a 10.20.30.x address and is on VLAN 100.
My issue is that the specific MAC addresses seem to be in a bit of a no-mans-land. They are kind of on VLAN 400 but get no DHCP address from the switch. If I give the clients manual 10.20.40.x address they can't talk to the switch on 10.20.40.1. Clients on an access port to VLAN 400 can see it fine. If I wireshark DHCP I can see DHCP transactions and even an offer but my clients are not seeing DHCP for some reason. Have tried multiple clients and its the same.
While on a General port the CDP packets don't seem to have a VLAN at all.
The DHCP transactions do mention VLAN 400.
Have I found a firmware bug? (on 3.1.1.7)
Any help appreciated.
