Foundry Networks
Page 1 of 63
Configuring DHCP Features
This chapter describes how to configure a DHCP server and DHCP Relay agent. It provides
knowledge necessary for system administrators to perform tasks related to IP address assignment.
Included are all DHCP features configuration commands and relevant explanations. This chapter
consists of the following sections:
TABLE OF FIGURES .................................................................................................................................... 2
ABOUT DHCP FEATURES .......................................................................................................................... 3
DHCP
AND
BOOTP...................................................................................................................................... 4
DHCP SERVER .............................................................................................................................................. 5
O
VERVIEW
.................................................................................................................................................... 5
DHCP
S
ERVER
C
ONFIGURATION
F
LOW
........................................................................................................ 9
D
EFAULT
DHCP
S
ERVER
C
ONFIGURATION
................................................................................................. 10
O
PERATING THE
DHCP
S
ERVER
.................................................................................................................. 10
DHCP
S
ERVER
M
ODES
............................................................................................................................... 12
C
ONFIGURING THE
DHCP
S
ERVER
O
PTIONAL
P
ARAMETERS
...................................................................... 14
C
ONFIGURING THE
DHCP
S
UBNET
-S
PECIFIC
P
ARAMETERS
........................................................................ 24
C
ONFIGURING THE
DHCP
H
OST
-S
PECIFIC
P
ARAMETERS
............................................................................ 25
DHCP
S
ERVER
C
ONFIGURATION AND
S
TATISTICS
D
ISPLAY
C
OMMANDS
................................................... 28
C
ONFIGURING
DHCP
S
ERVER
O
PTION
82 ................................................................................................... 32
C
ONFIGURING
DHCP
S
ERVER
O
PTION
66 ................................................................................................... 34
C
ONFIGURING
DHCP
S
ERVER
O
PTION
67 ................................................................................................... 34
C
LEARING THE
DHCP
S
ERVER
S
TATISTICS
C
OMMAND
.............................................................................. 35
DHCP
S
ERVER
D
EBUG
C
OMMANDS
............................................................................................................ 35
C
ONFIGURATION
E
XAMPLES
....................................................................................................................... 36
DHCP RELAY............................................................................................................................................... 43
T
HE
DHCP
R
ELAY
A
GENT
.......................................................................................................................... 43
DHCP
R
ELAY
A
GENT
D
EFAULT
C
ONFIGURATION
...................................................................................... 47
C
ONFIGURING THE
DHCP
R
ELAY
A
GENT AND
O
PTION
82.......................................................................... 47
C
ONFIGURING
R
ELAY
O
PTION
82................................................................................................................ 50
D
ISPLAYING
DHCP
R
ELAY
A
GENT AND
O
PTION
82
I
NFORMATION
............................................................ 55
C
ONFIGURATION
E
XAMPLES
....................................................................................................................... 57
ACRONYMS ................................................................................................................................................. 62
SUPPORTED PLATFORMS....................................................................................................................... 63
S
UPPORTED
S
TANDARDS
,
MIB
S AND
RFC
S
................................................................................................ 63