Dhcp Snooping; Overview - HP ProCurve 6120G/XG Manual

Configuring Advanced Threat Protection

DHCP Snooping

DHCP Snooping
Command
dhcp-snooping
show dhcp-snooping
show dhcp-snooping stats
dhcp-snooping binding
debug dhcp-snooping

Overview

You can use DHCP snooping to help avoid the Denial of Service attacks that
result from unauthorized users adding a DHCP server to the network that then
provides invalid configuration data to other DHCP clients on the network.
10-4
• Attempts to exhaust system resources so that sufficient resources are
not available to transmit legitimate traffic, indicated by an unusually
high use of specific system resources
• Attempts to attack the switch's CPU and introduce delay in system
response time to new network events
• Attempts by hackers to access the switch, indicated by an excessive
number of failed logins or port authentication failures
• Attempts to deny switch service by filling the forwarding table, indi­
cated by an increased number of learned MAC addresses or a high
number of MAC address moves from one port to another
• Attempts to exhaust available CPU resources, indicated by an
increased number of learned MAC address events being discarded
authorized-server
database
option
trust
verify
vlan
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