Displaying DHCP server information

The following DHCP show commands can be entered from any level of the CLI.

1. Display a specific active lease, or all active leases.

   device# show ip dhcp-server binding
   Bindings from all pools:
   IP Address Client-ID/ Lease expiration Type
   Hardware address
   192.168.1.2 0000.005d.a440 0d:0h:29m:31s Automatic
   192.168.1.3 0000.00e1.26c0 0d:0h:29m:38s Automatic

2. Display information about a specific address pool or all address pools.

   device# show ip dhcp-server address-pools
   Showing all address pool(s):
   Pool Name: one
   Time elapsed since last save: 0d:0h:6m:52s
   Total number of active leases: 2
   Address Pool State: active
   IP Address Exclusions: 192.168.1.45
   IP Address Exclusions: 192.168.1.99 192.168.1.103
   Pool Configured Options:
   bootfile: example.bin
   dhcp-default-router: 192.168.1.1
   dns-server: 192.168.1.100
   domain-name: example.com
   lease: 0 0 30
   netbios-name-server: 192.168.1.101
   network: 192.168.1.0 255.255.255.0
   next-bootstrap-server: 192.168.1.102
   tftp-server: 192.168.1.103

3. Display the lease binding database that is stored in flash memory.

   device# show ip dhcp-server flash
   Address Pool Binding:
   IP Address Client-ID/ Lease expiration Type
   Hardware address
   192.168.1.2 0000.005d.a440 0d:0h:18m:59s Automatic
   192.168.1.3 0000.00e1.26c0 0d:0h:19m:8s Automatic

4. Display information about active leases, deployed address pools, undeployed address pools, and server uptime.

   device# show ip dhcp-server summary
   DHCP Server Summary:
   Total number of active leases: 2
   Total number of deployed address-pools: 1
   Total number of undeployed address-pools: 0
   Server uptime: 0d:0h:8m:27s

5. Display DHCP configuration information on a Layer 2 device.

   device(config)# show ip
   Switch IP address: 10.44.16.116
   Subnet mask: 255.255.255.0
   Default router address: 10.44.16.1
   TFTP server address: 10.44.16.41
   Configuration filename: foundry.cfg
   Image filename: None

6. Display IP address information for a Layer 2 device.

   device(config)# show ip address
   IP Address Type Lease Time Interface
   10.44.16.116 Dynamic 174 0/1/1

7. Display IP address information for a Layer 3 device.

   device(config)# show ip address
   IP Address Type Lease Time Interface
   10.44.3.233 Dynamic 672651 0/1/2
   10.0.0.1 Static N/A 0/1/15

8. Display Layer 2 device configuration using the show run command.

   device(config)# show run
   Current configuration:
   !
   ver 08.0.40
   !
   module 1 icx-24-port-base-module
   !
   !ip dns domain-list englab.brocade.com
   ip dns domain-list companynet.com
   ip dns server-address 10.31.2.10
   ip route 0.0.0.0/0 10.25.224.1
   !ipv6 raguard policy p1
   !ipv6 dns server-address 200::1 8000::60 7000::61
   !!
   end

9. Display Layer 3 device configuration using the show run command.

   device(config)# show run
   Current configuration:
   !
   ver 08.0.40
   !
   module 1 icx7750-20-qxg-port-management-module
   module 2 icx7750-qsfp-6port-qsfp-240g-module
   !
   vlan 1 name DEFAULT-VLAN by port
   !
   ip dns server-address 10.44.3.111
   interface ethernet 0/1/2
   ip address 10.44.3.233 255.255.255.0 dynamic
   ip dhcp-client lease 691109
   interface ethernet 0/1/15
   ip address 10.0.0.1 255.0.0.0
   ip helper-address 1 10.44.3.111
   !
   end