Administrator Guide

Switch Management Commands 1946
Options 19, 20, 27, 29, 30, 31, 34, 36, and 39 only accept hex 00 or hex 01
values.
Example
console(config-dhcp-pool)#option 4 ascii “ntpservice.com “
console(config-dhcp-pool)#option 42 ip 192.168.21.1
console(config-dhcp-pool)#option 29 hex 01
console(config-dhcp-pool)#option 59 hex 00 00 10 01
console(config-dhcp-pool)#option 25 hex 01 ff
48 (X-Windows Font
Server)
–44
49 (X-Windows Display
Manager)
–44
58 (Renewal Time T1) 4 – –
59 (Rebinding Time T2) 4 – –
60 (Vendor Class) – 1 –
64 (NIS Domain) – 1 –
65 (NIS Servers) – 4 4
66 (TFTP Server) – 1 –
68 (Mobile IP Home
Agent)
–04
69 (SMTP Server) – 4 4
70 (POP3 Server) – 4 4
71 (NNTP Server) – 4 4
72 (WWW Server) – 4 4
73 (Finger Server) – 4 4
74 (IRC Server) – 4 4
75 (Streettalk Server) – 4 4
76 (STDA Server) – 4 4
Table 8-1. Option Codes and Lengths (continued)
Option Code Fixed Length Minimum Length Multiple Of