Alcatel-Lucent IP Touch 4008 Installation Manual page 9

Method 2 - Automatic
The IP Touch 40x8EE phone is compatible with any DHCP server that correctly supports
the BOOTP server IP address - siaddr (also called 'next-server') field. See standard RFC
951 for further information.
The syntax for the 'Option' 43 IP is as follows:
<opcode> <length> <IP>
<opcode> = 0x40 (64 decimal)
<length> = 0x04 (4 decimal)
<IP> = IP Address in hexadecimal – e.g. for 192.168.1.30 content should be (0xC0 A8 01 1E)
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