3com 5500-SI Manual De Usuario
Introduction to DHCP Accounting 297
DHCP Relay Displaying
You can verify your DHCP relay-related configuration by executing the following
display commands in any view.
display commands in any view.
DHCP Snooping Displaying
After the above configuration, you can display IP addresses and the corresponding
MAC addresses tracked by the DHCP snooping function by executing the display
command in any view.
MAC addresses tracked by the DHCP snooping function by executing the display
command in any view.
DHCP Relay
Configuration Example
One
Networking Requirements
There are two VLANs (1 and 10) and they both need to use the same DHCP server.
Networking Diagram
Figure 74 Configuring DHCP Relay
Table 291 Display DHCP relay information
Operation
Command
Display information about a specified DHCP
server group
server group
display dhcp-server groupNo
Display information about the DHCP server
group to which a specified VLAN interface
is mapped
group to which a specified VLAN interface
is mapped
display dhcp-server interface vlan-interface vlan-id
Display one or all user address entries, or a
specified type of entries in the valid user
address table of the DHCP server group
specified type of entries in the valid user
address table of the DHCP server group
display dhcp-security [ ip-address | dynamic | static |
tracker ]
tracker ]
Table 292 Display DHCP snooping
Operation
Command
Description
Display the user IP-MAC address
mapping entries recorded by the
DHCP snooping function
mapping entries recorded by the
DHCP snooping function
display dhcp-snooping
[unit unit-id]
[unit unit-id]
You can execute the display
commands in any view.
commands in any view.
Display the (enabled/disabled)
state of the DHCP snooping
function and the trusted ports
state of the DHCP snooping
function and the trusted ports
display dhcp-snooping
trust
trust
Ethernet
Ethernet
Internet
DHCP client
DHCP client
Switch ( DHCP Relay )
10.110.0.0
DHCP Server
202.38.1.2
10.110.1.1
202.38.0.0
202.38.1.1