In my working environment that I managed for almost 2 years running network that had multiple subnet on it .The subnet are 192.168.61.0/24 and 192.168.64.0/24. The question is the subnet was run without logically separated with VLAN or physically separated with LAN, but it run well and how it possible?
Because as I know in order those 2 subnet to work it must on the same subnet mask and in this case it would be using netmask /17 or the network must be separated either with a LAN or VLAN?
The main switch HP ProCurve 2530-48G which is connected with router SonicWall TZ105 and it is connected with only 1 port on the router (X0). The switch was managed by me and the router was managed by our HQ in Japan.
Here is the diagram of our network: