19    
Enhancements
Release R.11.12 Enhancements
To display the DHCP snooping configuration, enter this command:
ProCurve(config)# show dhcp-snooping
An example of the output is shown below.
ProCurve(config)# show dhcp-snooping
 DHCP Snooping Information
  DHCP Snooping              : Yes
  Enabled Vlans              :
  Verify MAC                 : Yes
  Option 82 untrusted policy : drop
  Option 82 Insertion        : Yes
  Option 82 remote-id        : mac
  Store lease database : Not configured
  Port  Trust
  ----- -----
  B1    No
  B2    No
To display statistics about the DHCP snooping process, enter this command:
ProCurve(config)# show dhcp-snooping stats
An example of the output is shown below.
database: To configure a location for the lease database, 
enter a URL in the format tftp://ip-addr/ascii-string. The 
maximum number of characters for the URL is 63.
option
: Add relay information option (Option 82) to DHCP 
client packets that are being forwarded out trusted ports. 
The default is
 yes, add relay information. 
trust
: Configure trusted ports. Only server packets received 
on trusted ports are forwarded. Default: untrusted.
verify
: Enables DHCP packet validation. The DHCP client 
hardware address field and the source MAC address must 
be the same for packets received on untrusted ports or the 
packet is dropped. Default:
 Yes
vlan
: Enable DHCP snooping on a vlan. DHCP snooping 
must be enabled already. Default:
 No