Does the AP support layer-3 registration through the option 138 field carried by the DHCP server, and what is the format?

2023-06-30 22:38:46 Published
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Problem Description

Does the AP support layer-3 registration through the option 138 field carried by the DHCP server, and what is the format?

Solution

 The AP supports Layer 3 registration through the option 138 field carried by the DHCP Server, and the format of the configuration method is consistent with option 43:

[AC-dhcp-pool-vlan100] option 138 hex 80070000 01 C0A80A64

#80: Option type, fixed to 80, 1 byte.

#07: option length, indicating the length of the following content (the number of hexadecimal numbers, here means there are 7 hexadecimal numbers behind, 0B means there are 11 hexadecimal numbers behind), one byte. #0000: Server type, fixed as 0000 two bytes.

#01: The number of subsequent IP addresses, one byte.

# C0A80A64: The hexadecimal representation of the AC's IP address 192.168.10.100.

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