Now im facing an issue. Currently in my environment, my core switch has a big flat VLAN of /20 subnet mask.
interface Vlan 1
ip address 10.4.129.1 255.255.240.0
That is to say, the range cover from .128.x till .143.x
Management would like to break them dwn to multiple class C subnets instead of a big Flat VLAN. making use of the opportunity of office expansion, i would like to set things right for a couple of new VLANs first before changing the whole IP addressing and configuration.
That is to say, for my new office area, i would like to use .133.x/24 segment.
Here is my question (i haven tried)
if on the core switch, am i allow to create the following config
interface vlan 133
ip address 10.4.133.1 255.255.255.0
knowing that this config conflicts with the previous VLAN configuration, will my Core switch allow to me set this IP address? since it interlap into /20 vlan.