If I have a switch port trunk directly connect to a router with the follow scenario below:
-------- g1/0/1 (Trunk) g1/0/1 |------|
|switch| Native VLAN 1 SVI=192.168.1.1 ==> IP=192.168.1.254 |Router|
-------- Tagged VLAN 2 SVI=192.168.2.1 Secondary IP=192.168.2.254|------|
Assuming no ACL is set & IP is within /24, why do VLAN 1 SVI can ping .254 but not VLAN 2?
Can someone explain the process going in behind?
My colleague told me because (I was using a FW at the time) that by default L3 device interface is using native and they don't see tag. My view is L3 device will strip the L2 frame regardless so it shouldn't matter tagged or not? I also noted with my lab testing above scenario, VLAN 2 is actually down and even if I make it to "up" with assigning the VLAN 2 elsewhere the above result stay the same.