Why is the device type shown in the light cat MSFT 5.0

What is MSFT 5.0? Why is the device type shown in the light cat MSFT 5.0?

Let's look at a picture of a light cat.

Then look at the process of assigning IP addresses to DHCP, Discover-offer-request-ack, and finally adding an ARP acknowledgment

is actually the option field in the DHCP request (DHCP requests message) options: Vendor class identifier The vendor type identifier field, where the light cat shows its value. Similar routers can also display option: (a) Host name, option: (bayi) client Fully qualified domain name clients full domain name.

For the option 60 field, the Windows operating system client has a value of MSFT 5.0, and the Android device dhcpcd-5.5.6

The following is the corresponding relationship
MSFT 5.0 <--> Windows
DHCPCD 4.0.1 <--> Android 2.2
DHCPCD 4.0.15 <--> Android 3.0
dhcpcd-5.2.10 <--> Android 4.0

dhcpcd-5.5.6 <--> Android 4.2
UDHCP 1.19.4 <--> Pole routing or other routers

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