Specifications

48 Appendix A
Table 1 DHCP Options
Option Description Notes
1 Subnet Mask Required.
3 Router Optional but recommended. It is not required
unless the thin client must interact with servers
on a different subnet.
6 Domain Name Server
(DNS)
Optional but recommended.
12 Hostname Optional.
15 Domain Name Optional but recommended.
43 Vendor Class Specific
Information
Optional.
50 Requested IP Required.
51 Lease Time Required.
52 Option Overload Optional.
53 DHCP Message Type Required.
54 DHCP Server IP Address Recommended.
55 Parameter Request List Sent by thin client.
57 Maximum DHCP Message
Size
Optional (always sent by thin client).
58 T1 (renew) Time Required.
59 T2 (rebind) Time Required.
61 Client identifier Always sent.
155 Remote Server IP Address
or name
Optional.
156 Logon User Name used for
a connection
Optional.
157 Domain name used for a
connection
Optional.
158 Logon Password used for a
connection
Optional.
159 Command Line for a
connection
Optional.
160 Working Directory for a
connection
Optional.
161 FTP server list Optional string. Can be either the name or the
IP address of the FTP server where the
updated thin client image is stored. If a name is
given, the name must be resolvable by the DNS
server(s) specified in Option 6.