DHCP Vendor Class Sub Options
First the “sub options code” and then the length of the data(string) and then the data(string).
0x01 = sub options code (splash-protocol)
03 = length in hex
‘3,1’ = the string
0x02 = sub options code (kernel-protocol)
03 = length in hex
‘3,1’ = the string
0x0a = sub options code (bootcast-address)
10 = length in hex
‘239.255.1.3:2222’ = the string
And so on…
You have to breakdown the vendor-class code into a very long code, like this.
0x0103'3,1'0x0203'3,1'0x0a10'239.255.1.3:2222'
So the mikrotik cli code line like this.
dhcp-server option add code 43 name vendor-class value="0x0103'3,1'0x0203'3,1'0x0a10'239.255.1.3:2222'"