DHCP Vendor Class Identifier Changes
Updated Vendor Class Identifiers for Windows and Android Devices
The Dynamic Host Configuration Protocol (DHCP) Vendor Class Identifier (VCI) has been updated for some Windows-based devices. The VCI, which is included in the DHCP request, identifies the vendor and device type. For Windows 2000 and above (Vista, 7, 8, etc.), the old VCI was simply MSFT 50. The new VCI for these devices is WEB MSFT 5 0.
Additionally, a new VCI has been introduced for Android devices: WEB dhcpcd-5 5 6. This VCI will be used by all Android devices running Android 5.0 and above.
Significance of the Changes
These changes are important because they allow DHCP servers to better identify and configure client devices. This can improve network performance and security. For example, a DHCP server can use the VCI to identify Windows-based devices and configure them with specific network settings that are optimized for Windows. Similarly, a DHCP server can use the VCI to identify Android devices and configure them with settings that are optimized for Android.
The updated VCIs will be used by all DHCPv4 servers and clients. If you are using a DHCP server, you should ensure that it is up-to-date with the latest changes. If you are using a DHCP client, you should ensure that it is compatible with the new VCIs.
Conclusion
The changes to the DHCP Vendor Class Identifier are an important step in improving the efficiency and security of DHCP. By using the new VCIs, DHCP servers can better identify and configure client devices, which can lead to improved network performance and security.
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