IT? Do 2 laptops of a router have a common ID?
No, not really.
What ID? Each network device has its own Mac address and receives its own IP from a DHCP router so that it can be clearly assigned.
ID? You mean probably more IP?
An IP is assigned once. No two devices can use the same IP in the same network.
Web services and websites will still read the same IP on both devices, since the device itself does not communicate with the server, but the router makes the requests and its IP is used for communication.
But also in the case of an ID - although I could only think of the HardwareID or BrowserID, this is unique.
No! Neither ID, nor IP, nor name, nor anything else in common…
I guess you mean IP and not ID?
In either case, the answer is NO.
If the two laptops are connected to a router, the router provides a DHCP server. The DHCP server builds its own network with its own IP addresses which, however, can't be reached directly from the outside. Each device within this IP network has its own IP address.
From the outside, only the router that uses an IP address assigned by the Internet provider can be reached directly, this IP address is also visible to the outside, the router then forwards the requests or data to the individual devices in its own network.
For the assignment, there are also the MAC addresses of the devices, which are assigned quite unique in the world and which are transmitted in the data protocols.
If Due ID means an identification number (can actually only be the MAC address) this is fixed in the hardware (network card, Wi-Fi module, etc.) and is unique, so the devices do not share an ID with each other.
