show nodealias dhcp-fingerprint

Displays DHCP fingerprint information collected stored for a DHCP client.

Syntax

show nodealias dhcp-fingerprint [i-sid <0-16777215>] [mac <0x00:0x00:0x00:0x00:0x00:0x00>] [mlt <1-512>] [port {slot/port[/sub-port][-slot/port[/sub-port]][,...][slot/all][all]}] [vlan <1-4094>]

Default

The default is none.

Command Parameters

i-sid <0-16777215>: Displays DHCP fingerprint information for the specified I-SID.
mac <0x00:0x00:0x00:0x00:0x00:0x00>: Displays DHCP fingerprint information for the specified MAC Address.
mlt <1-512>: Displays DHCP fingerprint information for the specified MLT.
port {slot/port[/sub-port][-slot/port[/sub-port]][,...][slot/all][all]}: Displays DHCP fingerprint information for the specified port.
vlan <0-4094>: Displays DHCP fingerprint information for the specified VLAN.

Command Mode

User EXEC

Command Output

The show nodealias dhcp-fingerprint command displays the following information:


Output field	Description
MAC-ADDRESS	Displays the source MAC address.
I-SID	Displays the I-SID.
VLAN	Displays the VLAN ID.
INTERFACE	Displays the receiving interface port or MLT.
CODE	Displays the DHCP Options codes the DHCP client uses, such as: Option 12 Option 53 Option 55 Option 60
VALUE	Displays the values for the DHCP client options: Specifies the hostname of the client. Specifies the type of the DHCP message. The DHCP client IP address displays for ACK messages. Specifies the list of DHCP parameter options requested by the client. Specifies the client vendor class identifier (VCI) domain name.

The following example displays DHCP fingerprint information for Node Alias clients on the switch.

Example

Switch:1>show nodealias dhcp-fingerprint

================================================================================
                      Node Alias - DHCP Fingerprint Info
================================================================================

MAC-ADDRESS         I-SID     VLAN  INTERFACE  CODE       VALUE
--------------------------------------------------------------------------------
00:00:00:00:00:15   0         20    cpp        12         host1
                                               53         2.2.2.2
                                               55         17,17,17,16
                                               60         extreme networks
--------------------------------------------------------------------------------
00:00:00:00:00:21   0         20    cpp        12         abracadabra
                                               53         0.0.0.0
                                               55         3
                                               60         extreme networks
--------------------------------------------------------------------------------

 2 displayed.