Specifications

14 Chapter 2
replace the information contained in the UI. However, if the thin client does not receive
information from the DHCP server about a particular function, the information manually
entered in the UI will remain and will be used.
Guidelines for Windows Servers:
• You can use the DHCP tools available on the Windows server.
Guidelines for Linux Servers:
• Enter DHCP options 161 and 162 (described in Table 1) in /etc/dhcpd.conf (refer
to the manual page man dhcpd.conf for more information on DHCP and the syntax
of this file). For example, if you want the computer to search ftp://
132.237.16.157/pub/serversoftware/wnos, you would add the following line
to /etc/dhcpd.conf:
option option-161 132.237.16.157;option option-162 "pub/
serversoftware$";
As mentioned in Table 1, the /wnos suffix is automatically appended to the FTP path,
so you should not specify it explicitly. In this case, the actual directory searched will be
pub/serversoftware/wnos.
The DHCP options listed in Table 1 are accepted by the thin clients.
Table 1 DHCP Options
Option Description Notes
1 Subnet Mask Required. However, it is not is not required unless
the thin client must interact with servers on a
different subnet (MS DHCP requires a subnet
mask and will always send one).
2 Time Offset Optional.
3 Router Optional but recommended. It is not is not
required unless the thin client must interact with
servers on a different subnet.
6 Domain Name Server
(DNS)
Optional but recommended.
15 Domain Name Optional but recommended. See Option 6.
28 Broadcast Address Optional.
44 WINS servers IP
Address
Optional.
51 Lease Time Optional but recommended.
52 Option Overload Optional.
53 DHCP Message Type Recommended.
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 Optional but recommended.
59 T2 (rebind) Time Optional but recommended.