display dhcp client

Use display dhcp client to display DHCP client information.

Syntax

display dhcp client [ verbose ] [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

verbose: Displays verbose DHCP client information.

interface interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

If you do not specify an interface, this command displays DHCP client information about all interfaces.

Examples

# Display DHCP client information about all interfaces.

<Sysname> display dhcp client
Vlan-interface10 DHCP client information:
 Current state: BOUND
 Allocated IP: 40.1.1.20 255.255.255.0
 Allocated lease: 259200 seconds, T1: 129600 seconds, T2: 226800 seconds
 DHCP server: 40.1.1.2

# Display verbose DHCP client information.

<Sysname> display dhcp client verbose
Vlan-interface10 DHCP client information:
 Current state: BOUND
 Allocated IP: 40.1.1.20 255.255.255.0
 Allocated lease: 259200 seconds, T1: 129600 seconds, T2: 226800 seconds
 Lease from May 21 19:00:29 2012   to   May 31 19:00:29 2012
 DHCP server: 40.1.1.2
 Transaction ID: 0x1c09322d
 Default router: 40.1.1.2
 Classless static routes:
   Destination: 1.1.0.1, Mask: 255.0.0.0, NextHop: 192.168.40.16
   Destination: 10.198.122.63, Mask: 255.255.255.255, NextHop: 192.168.40.16
 DNS servers: 44.1.1.11 44.1.1.12
 Domain name: ddd.com
 Boot servers: 200.200.200.200  1.1.1.1
 Client ID type: acsii(type value=00)
 Client ID value: 000c.29d3.8659-Vlan1
 Client ID (with type) hex: 0030-3030-632e-3239-
                            6433-2e38-3635-392d-
                            4574-6830-2f30-2f32
 T1 will timeout in 1 day 11 hours 58 minutes 52 seconds.

Table 16: Command output

Field	Description
Vlan-interface10 DHCP client information	Information about the interface that acts as the DHCP client.
Current state	Current state of the DHCP client: HALT—The client stops applying for an IP address. INIT—The initialization state. SELECTING—The client has sent out a DHCP-DISCOVER message in search for a DHCP server and is waiting for the response from DHCP servers. REQUESTING—The client has sent out a DHCP-REQUEST message requesting for an IP address and is waiting for the response from DHCP servers. BOUND—The client has received the DHCP-ACK message from a DHCP server and obtained an IP address successfully. RENEWING—The T1 timer expires. REBOUNDING—The T2 timer expires.
Allocated IP	IP address allocated by the DHCP server.
Allocated lease	Allocated lease time.
T1	1/2 lease time (in seconds) of the DHCP client IP address.
T2	7/8 lease time (in seconds) of the DHCP client IP address.
Lease from….to….	Start and end time of the lease.
DHCP server	DHCP server IP address that assigned the IP address.
Transaction ID	Transaction ID, a random number chosen by the client to identify an IP address allocation.
Default router	Gateway address assigned to the client.
Classless static routes	Classless static routes assigned to the client.
Static routes	Classful static routes assigned to the client.
DNS servers	DNS server address assigned to the client.
Domain name	Domain name suffix assigned to the client.
Boot servers	PXE server addresses (up to 16 addresses) specified for the DHCP client, which are obtained through Option 43.
Client ID type	DHCP client ID type: If an ASCII string is used as the client ID value, the type value is 00. If the MAC address of a specific interface is used as the client ID value, the type value is 01. If a hexadecimal string is used as the client ID value, the type value is the first two characters in the string.
Client ID value	Value of the DHCP client ID.
Client ID (with type) hex	DHCP client ID with the type field, a hexadecimal string.
T1 will timeout in 1 day 11 hours 58 minutes 52 seconds.	How long the T1 (1/2 lease time) timer will timeout.

Related commands

dhcp client identifier
ip address dhcp-alloc

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dhcp client identifier	home	ip address dhcp-alloc