Service Manual

ip dhcp relay
Enable Option 82.
Syntax
ip dhcp relay information-option [remote-id | trust-downstream]
Parameters
remote-id Configure the system to enable the remote-id string in option-82.
trust-downstream Configure the system to trust Option 82 when it is received from the previous-hop
router.
Defaults Disabled
Command Modes CONFIGURATION
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
ip dhcp relay secondary-subnet
Enable DHCP relay secondary- subnet on all the interfaces.
Syntax
[no] ip dhcp relay seconday-subnet
To disable the dhcp relay secondary- subnet, use theno ip dhcp relay secondary-subnet command.
Defaults Disabled.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.7(0.0) Introduced on the S4810, S4820T, S6000 and Z-Series.
Example
Dell(conf)# ip dhcp relay secondary-subnet
show ip dhcp snooping
Display the contents of the DHCP binding table or display the interfaces configured with IP Source Guard.
Syntax
show ip dhcp snooping [binding | source-address-validation]
Parameters
binding Display the interfaces configured with IP Source Guard.
source-address-
validation
Display the interfaces configured with IP Source Guard.
442 Dynamic Host Configuration Protocol (DHCP)