C
HAPTER
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| Security Measures
DHCP Snooping
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3. Set any ports within the local network or firewall to trusted.
4. Click Apply
Figure 181: Configuring the Port Mode for DHCP Snooping
DISPLAYING DHCP
SNOOPING BINDING
INFORMATION
Use the IP Service > DHCP > Snooping (Show Information) page to display
entries in the binding table.
CLI REFERENCES
◆ "show ip dhcp snooping binding" on page 732
PARAMETERS
These parameters are displayed in the web interface:
◆ MAC Address – Physical address associated with the entry.
◆ IP Address – IP address corresponding to the client.
◆ Lease Time (seconds) – The time for which this IP address is leased to
the client.
◆ Type – Entry types include:
■
DHCP-Snooping – Dynamically snooped.
■
Static-DHCPSNP – Statically configured.
◆ VLAN – VLAN to which this entry is bound.
◆ Interface – Port or trunk to which this entry is bound.
◆ Store – Writes all dynamically learned snooping entries to flash
memory. This function can be used to store the currently learned
dynamic DHCP snooping entries to flash memory. These entries will be
restored to the snooping table when the switch is reset. However, note
that the lease time shown for a dynamic entry that has been restored
from flash memory will no longer be valid.
◆ Clear – Removes all dynamically learned snooping entries from flash
memory.
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