What is the DHCP Option 43 hex value for a single WLC with the IP address 192.168.123.100?

Group of answer choices

F104C0A87B64

F104C0A99B70

F108C0A87B64

F102C0A87B64

1 answer

To calculate the DHCP Option 43 hex value for a Wireless LAN Controller (WLC) with the IP address 192.168.123.100, we need to follow the format specified for Option 43.

The format generally is:

  • The first byte is the type of option, which is f1 for vendor-specific options.
  • The second byte indicates the length of the data that follows, which typically would be 04 for a 4-byte IP address.
  • The next bytes represent the IP address in hexadecimal format.

The IP address 192.168.123.100 needs to be converted to hex:

  • 192 in hex is C0
  • 168 in hex is A8
  • 123 in hex is 7B
  • 100 in hex is 64

So the IP address 192.168.123.100 in hex would be C0A87B64.

Putting it all together:

  • Type: F1
  • Length: 04
  • IP: C0A87B64

The final Option 43 value becomes F104C0A87B64.

Based on the provided options, the correct answer is:

F104C0A87B64.