
C
HAPTER
48
| DHCP Commands
DHCP Relay
– 1629 –
DHCP R
ELAY
This section describes commands used to configure DHCP relay functions
for host devices attached to the switch.
DHCP Relay for IPv4
ip dhcp relay server
This command specifies the DHCP server or relay server addresses to be
used by the switch’s DHCP relay agent. Use the
no
form to clear all
addresses.
S
YNTAX
ip dhcp relay server
address1
[
address2
[
address3 ...
]]
no ip dhcp relay server
address
- IP address of DHCP server. (Range: 1-5 addresses)
D
EFAULT
S
ETTING
None
C
OMMAND
M
ODE
Interface Configuration (VLAN)
U
SAGE
G
UIDELINES
◆
DHCP relay service applies to DHCP client requests received on the
specified VLAN.
◆
This command is used to configure DHCP relay for host devices
attached to the switch. If DHCP relay service is enabled, and this switch
sees a DHCP client request, it inserts its own IP address into the
request so that the DHCP server will know the subnet where the client
is located. Then, the switch forwards the packet to a DHCP server on
another network. When the server receives the DHCP request, it
allocates a free IP address for the DHCP client from its defined scope
for the DHCP client’s subnet, and sends a DHCP response back to the
DHCP relay agent (i.e., this switch). This switch then passes the DHCP
response received from the server to the client.
Table 231: DHCP Relay Commands
Command
Function
Mode
DHCP Relay for IPv4
Specifies DHCP server addresses for relay
IC
Enables DHCP relay agent
PE
DHCP Relay for IPv6
Specifies destination address or VLAN to which client
messages are forwarded for relay service
IC
Shows destination addresses or VLAN to which client
messages are forwarded for relay service
PE
Содержание ECS4660-28F
Страница 1: ...Management Guide www edge core com ECS4660 28F Layer 3 Gigabit Ethernet Switch...
Страница 2: ......
Страница 4: ......
Страница 12: ...ABOUT THIS GUIDE 12...
Страница 64: ...CONTENTS 64...
Страница 90: ...TABLES 90...
Страница 92: ...SECTION I Getting Started 92...
Страница 122: ...SECTION II Web Configuration 122 Multicast Routing on page 825...
Страница 148: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 148...
Страница 224: ...CHAPTER 5 Interface Configuration VLAN Trunking 224 Figure 68 Configuring VLAN Trunking...
Страница 262: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 262...
Страница 304: ...CHAPTER 9 Congestion Control Automatic Traffic Control 304...
Страница 340: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 340...
Страница 452: ...CHAPTER 13 Security Measures DHCP Snooping 452...
Страница 740: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 740...
Страница 866: ...CHAPTER 21 Multicast Routing Configuring PIMv6 for IPv6 866...
Страница 882: ...CHAPTER 22 Using the Command Line Interface CLI Command Groups 882...
Страница 1024: ...CHAPTER 26 Remote Monitoring Commands 1024...
Страница 1030: ...CHAPTER 27 Flow Sampling Commands 1030...
Страница 1088: ...CHAPTER 28 Authentication Commands PPPoE Intermediate Agent 1088...
Страница 1162: ...CHAPTER 29 General Security Measures Configuring Port based Traffic Segmentation 1162...
Страница 1186: ...CHAPTER 30 Access Control Lists ACL Information 1186...
Страница 1214: ...CHAPTER 31 Interface Commands Transceiver Threshold Configuration 1214...
Страница 1238: ...CHAPTER 33 Port Mirroring Commands RSPAN Mirroring Commands 1238...
Страница 1258: ...CHAPTER 34 Congestion Control Commands Automatic Traffic Control Commands 1258...
Страница 1270: ...CHAPTER 36 UniDirectional Link Detection Commands 1270...
Страница 1276: ...CHAPTER 37 Address Table Commands 1276...
Страница 1336: ...CHAPTER 39 ERPS Commands 1336...
Страница 1386: ...CHAPTER 40 VLAN Commands Configuring Voice VLANs 1386...
Страница 1406: ...CHAPTER 41 Class of Service Commands Priority Commands Layer 3 and 4 1406...
Страница 1424: ...CHAPTER 42 Quality of Service Commands 1424...
Страница 1536: ...CHAPTER 43 Multicast Filtering Commands MLD Proxy Routing 1536...
Страница 1602: ...CHAPTER 45 CFM Commands Delay Measure Operations 1602...
Страница 1624: ...CHAPTER 47 Domain Name Service Commands 1624...
Страница 1646: ...CHAPTER 48 DHCP Commands DHCP Server 1646...
Страница 1974: ...SECTION IV Appendices 1974...
Страница 1980: ...APPENDIX A Software Specifications Management Information Bases 1980...
Страница 2020: ...ECS4660 28F E102013 ST R03 149100000140A...