How to determine the boundaries of a local network in an office network?

The boundaries of a local area network (LAN) in an office network are determined by the following methods:

• IP addressing and subnet mask: The local network usually has a specific range of IP addresses, for example, 192.168.1.0/24. The subnet mask (e.g., 255.255.255.0) defines which addresses are considered local.
• Physical topology: All devices connected to a single switch or a group of switches form a local network.
• Routers and gateways: The boundary of the local network is the device that connects the LAN to an external network (e.g., the internet). Usually, this is a router.

To determine the boundaries, you can run the command ipconfig (Windows) or ifconfig/ip addr (Linux) and check the IP address and subnet mask. You can also check the router settings to understand which devices are inside the LAN.