DHCP Options Supported for BOOTP Clients

BOOTP clients that do not specify the DHCP option code 55 (the Options Request List parameter) can still retrieve the following options from DHCP servers running Windows NT Server 4.0 or later. Table 4.11 lists the DHCP options available for BOOTP clients.

Table 4.11 DHCP Options for BOOTP Clients

Code

Description

1

Subnet Mask

3

Router

4

Time Server

5

Name Server

9

LPR Server

12

Computer Name

15

Domain Name

17

Root Path

42

NTP Servers

44

WINS Server

45

NetBIOS over TCP/IP Datagram Distribution Server

46

NetBIOS over TCP/IP Node Type

47

NetBIOS over TCP/IP Scope

48

X Window System Font Server

49

X Window System Display Manager

69

SMTP Server

70

POP3 Server

In order to obtain other options, the client must specify option 55 in the BOOTP request. Windows 2000 DHCP servers return the options in the order listed above and return as many options as can fit in a single datagram response.

important-iconImportant

When configuring client reservations for use with BOOTP clients, remember that DHCP options can apply equally to DHCP and BOOTP clients. Therefore, it is imperative that you correctly configure your scopes.