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HP 2610 User Manual page 27

Version r.11.25 software procurve 2610 series
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To configure a DHCP authorized server address, enter this command in the global configuration
context:
ProCurve(config)# dhcp-snooping authorized-server
ProCurve(config)# show dhcp-snooping
DHCP Snooping Information
DHCP Snooping
Enabled Vlans
Verify MAC
Option 82 untrusted policy : drop
Option 82 Insertion
Option 82 remote-id
Authorized Servers
---------------------
111.222.3.4
Using DHCP Snooping with Option 82
DHCP adds Option 82 (relay information option) to DHCP request packets received on untrusted
ports by default. (See the preceding section Configuring DHCP Relay for more information on
Option 82.)
When DHCP is enabled globally and also enabled on a VLAN, and the switch is acting as a DHCP
relay, the settings for the DHCP relay Option 82 command are ignored when snooping is controlling
Option 82 insertion. Option 82 inserted in this manner allows the association of the client's lease with
the correct port, even when another device is acting as a DHCP relay or when the server is on the
same subnet as the client.
N o t e
DHCP snooping only overrides the Option 82 settings on a VLAN that has snooping enabled, not on
VLANS without snooping enabled.
<ip-address>
: Yes
: 4
: No
: Yes
: subnet-ip
Enhancements
Release R.11.12 Enhancements
22

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