Filter
Top Products
DES-7200 Configuration Guide Chapter 5 DHCP Relay Configuration
5-10
DES-7200(config)# ip helper-address192.18.100.2 //Add an IP address
globally
DES-7200(config)# interface GigabitEthernet 0/3
DES-7200(config-if)# ip helper-address 192.18.200.1 //Add an IP address on
the interface
DES-7200(config-if)# ip helper-address 192.18.200.2 // Add an IP address on
the interface
DES-7200(config-if)# end
5.3 Other Precausions on
DHCP Relay
Configuration
For layer 2 network devices, you must enable at least one of the option dot1x,
dynamic address binding and option82 functions when the cross-management
vlan relay function is required. Otherwise, only the relay function of
management VLAN can be enabled for the layer 2 device.
5.3.1 Precautions on
DHCP option dot1x
Configuration
1. This command works only when the configuration related to AAA/802.1x is
correct.
2. When this scheme is adopted, the IP authorization of the DHCP mode of
802.1x should be enabled.
3. This command cannot be used together with command dhcp option82
because they are conflicted.
4. When the IP authorization of the DHCP mode of 802.1x is enabled, the
MAC address and the IP address will also be bound. Therefore, IP
authorization and DHCP dynamic binding function cannot be enabled at the
same time.
5.3.2 Precautions on
DHCP option82
Configuration
The DHCP option82 function and the dhcp option dot1x function cannot be
used at the same time because they are conflicted.