R0106-HP MSR Router Series Layer 3 - IP Services Command Reference(V7)

71
Predefined user roles
network-admin
Parameters
ip-address: Specifies the IP address of a DHCP server. The DHCP relay agent forwards DHCP packets
received from DHCP clients to this DHCP server.
Usage guidelines
The specified IP address of the DHCP server must not reside on the same subnet as the IP address of the
DHCP relay agent interface. Otherwise, the DHCP clients might fail to obtain IP addresses.
You can specify a maximum of eight DHCP servers on an interface. The DHCP relay agent forwards the
packets from the clients to all the specified DHCP servers.
If you do not specify any IP address, the undo dhcp relay server-address command removes all DHCP
servers on the interface.
Examples
# Specify the DHCP server 1.1.1.1 on the relay agent interface GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] dhcp relay server-address 1.1.1.1
Related commands
• dhcp select relay
• display dhcp relay interface
display dhcp relay check mac-address
Use display dhcp relay check mac-address to display MAC address check entries on the relay agent.
Syntax
display dhcp relay check mac-address
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display MAC address check entries on the DHCP relay agent.
<Sysname> display dhcp relay check mac-address
Source-MAC Interface Aging-time
23f3-1122-adf1 GE2/1/1 10
23f3-1122-2230 GE2/1/2 30
Table 11 Command output
Field Descri
p
tion
Source MAC Source MAC address of the attacker.