show ip dhcp-server subnet

Displays information on a DHCP subnet.

Syntax

Command Parameters

[A.B.C.D/X]
Specifies a subnet network address and mask.
detail
Specifies a detailed summary.

Command Mode

User EXEC

Command Output

The show ip dhcp-server subnet [A.B.C.D/X] [detail] command displays the following information:

Output field

Description

SUBNET

Specifies the subnet network address and mask.

IP ADDRESS RANGE

Specifies the starting and ending IP addresses of the address pool.

TOTAL ADDRESSES

Specifies the total number of addresses that the pool allows irrespective of whether those addresses are leased currently.

LEASED ADDRESSES

Specifies the total number of addresses that are leased currently.

Lease-Time

Specifies the lease expiration timer that is configured for the subnet.

TFTP Server IP

Specifies the IP address of the TFTP server that the subnet uses.

TFTP Server Name

Specifies the server name of the TFTP server that the subnet uses.

TFTP Bootfile-Name

Specifies the filename of the boot image file that the subnet uses.

Domain name

Specifies the subnet domain name.

Netbios-name-server

Specifies the NetBIOS name server that the subnet uses.

Netbios-type

Specifies the node type for the NetBIOS name server that the subnet uses.

Router

Specifies the IP address of the subnet router.

DNS

Specifies the IP address of the DNS server that the subnet uses.

NTP Server

Specifies the IP address of the NTP server that the subnet uses.

Custom Option <224-254>

Specifies the subnet data value for any DHCP Custom Option. This value can be an IPv4 address, integer, or string.

Example

The following example displays information on a DHCP subnet:

Switch:1#show ip dhcp-server subnet
========================================================================================
                                 DHCP Server Subnets Info
========================================================================================
SUBNET            IP ADDRESS RANGE               TOTAL ADDRESSES    LEASED ADDRESSES
----------------------------------------------------------------------------------------
192.0.2.0/24      192.0.2.1 - 192.0.2.254              254                0
198.51.100.0/24   198.51.100.1 - 198.51.100.80          80                2
----------------------------------------------------------------------------------------
 Total Number of DHCP Server subnets displayed: 2
----------------------------------------------------------------------------------------

The following example displays detailed information on a DHCP subnet:

Switch:1#show ip dhcp-server subnet detail
================================================================================
                       DHCP Server Subnets Detailed Info
================================================================================

================================================================================
                             Subnet 192.0.2.0/24
================================================================================
IP Address Range          : 192.0.2.1 - 192.0.2.254
Total Addresses           : 254
Leased Addresses          : 0
Lease-Time                : 4000
TFTP Server IP            : 0.0.0.0
TFTP Server Name          :
TFTP Bootfile-Name        :
Domain Name               :
Netbios-name-server       : 0.0.0.0
Netbios-type              : 0x0

Router 1                  : 192.0.2.5

DNS 1                     : 203.0.113.14
DNS 2                     : 203.0.113.15

================================================================================
                              Subnet 198.51.100.0/24
================================================================================
IP Address Range          : 198.51.100.1 - 198.51.100.80
Total Addresses           : 80
Leased Addresses          : 2
Lease-Time                : 4000
TFTP Server IP            : 203.0.113.20
TFTP Server Name          :
TFTP Bootfile-Name        :
Domain Name               :
Netbios-name-server       : 0.0.0.0
Netbios-type              : 0x0

Router 1                  : 198.51.100.79
Router 2                  : 198.51.100.80
NTP Server 1              : 203.0.113.34
Custom-Option 250         : 203.0.113.23
--------------------------------------------------------------------------------
 Total Number of DHCP Server subnets displayed: 2
--------------------------------------------------------------------------------