Windows DHCP Client-Side Feature Updates

Introducing MSFT 50 XBOX Identifier

The DHCP client-side feature in Windows has undergone an update, introducing a new identifier value: MSFT 50 XBOX. This value denotes an Xbox device and will be displayed accordingly on compatible devices.

Vendor Class Identifier (VCI) and DHCP

DHCP, or Dynamic Host Configuration Protocol, is a network protocol used by devices to obtain IP addresses and other network configuration settings from a DHCP server. The Vendor Class Identifier (VCI) is a field within the DHCP request that allows the client device to identify its type to the DHCP server.

Previously, Windows devices would use the VCI "MSFT 50" to indicate that they were Windows computers. Now, with the addition of "MSFT 50 XBOX," Xbox devices can also be specifically identified during DHCP exchanges.

DHCP and Wireshark Analysis

When using network analysis tools like Wireshark to examine DHCP traffic, you may notice that the DHCPv4 client transmits the VCI "MSFT 50." This value is typically ignored by the DHCPv4 server.

However, if a device requests a DHCP lease with the VCI "MSFT 50 XBOX," the DHCP server will recognize this identifier and may provide specialized configuration settings tailored for Xbox devices.

Conclusion

The addition of the MSFT 50 XBOX identifier to the Windows DHCP client-side features enhances the network experience for Xbox users. By providing a specific VCI for Xbox devices, DHCP servers can deliver customized settings and optimize network performance for these devices.