I think I remember reading somewhere that you could have multiple VLANs assigned to a single interface by way of a pseudo interface. Googling with that vocabulary doesn't return proper results though, so I hope I'm just using the wrong words. I have a Cisco WS-C4507R running 12.2(18)EW3 (I know it's old).
I thought the syntax was something like that shown below, but the '.1' isn't making a new interface.
MySwitch#sh run int g4/47
Current configuration : 149 bytes
!
interface GigabitEthernet4/47
description "The Server's address on VLAN 7"
switchport access vlan 7
switchport mode access
no cdp enable
end
MySwitch#sh run int g4/47.1
Current configuration : 151 bytes
!
interface GigabitEthernet4/47
description "The Server's address on VLAN 12"
switchport access vlan 12
switchport mode access
no cdp enable
end
Am I misremembering this feature? Is it a thing, but not for my old AF IOS? It appears I can assign two wildly different IPs on a single physical NIC on the client machine, but I would also need to have its switch uplink on the two appropriate VLANs. Am I resigned to making the interface a trunking int and have the two different IPs on the client NIC?
EDIT: Having a client machine with two IPs on a single NIC, that wouldn't create a broadcast loop/storm unless the NIC had bridging or routing configured on it, correct?
no switchport
command, and then assign subinterfaces on the physical interface. Also, many servers can understand VLANs, so you may beble to trunk to the server if you configure it correctly.no switchport
stuff in a bit.