Dell S4810 - Secure DHCP Commands

Secure DHCP Commands
DHCP as defined by RFC 2131 provides no authentication or security mechanisms. Secure DHCP is a suite
of features that protects networks that use dynamic address allocation from spoofing and attacks.
clear ip dhcp snooping
Clear the DHCP binding table.
S4810
Syntax
clear ip dhcp snooping binding
Defaults none
Command
Modes
EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the C-Series and S-Series.
Related
Commands
show ip dhcp snooping — displays the contents of the DHCP binding table.
ip dhcp relay
Enable Option 82.
S4810
Syntax
ip dhcp relay information-option [trust-downstream | vrf]
Parameters
trust-
downstream
Configure the system to trust Option 82 when it is received
from the previous-hop router.
vrf Enter the keyword vrf to include VRF related information in
the Option 82. This configuration enables the relay agent to
include VRF related information when it forwards the
broadcasts from client to DHCP server.
Defaults Disabled.
1526
Security