Catalyst 3750-E and 3560-E Switch Cisco IOS ... - DNIP . NET

Chapter 2Catalyst 3750-E and 3560-E Switch Cisco IOS Commandsip dhcp snooping bindingip dhcp snooping bindingUse the ip dhcp snooping binding privileged EXEC command on the switch stack or on a standaloneswitch to configure the DHCP snooping binding database and to add binding entries to the database. Usethe no form of this command to delete entries from the binding database.ip dhcp snooping binding mac-address vlan vlan-id ip-address interface interface-id expirysecondsno ip dhcp snooping binding mac-address vlan vlan-id ip-address interface interface-idThis command is available only if your switch is running the IP services feature set.Syntax Descriptionmac-addressSpecify a MAC address.vlan vlan-id Specify a VLAN number. The range is 1 to 4094.ip-addressSpecify an IP address.interface interface-id Specify an interface on which to add or delete a binding entry.expiry seconds Specify the interval (in seconds) after which the binding entry is no longervalid. The range is 1 to 4294967295.DefaultsNo default database is defined.Command ModesPrivileged EXECCommand HistoryRelease12.2(35)SE2ModificationThis command was introduced.Usage GuidelinesUse this command when you are testing or debugging the switch.In the DHCP snooping binding database, each database entry, also referred to a binding, has an IPaddress, an associated MAC address, the lease time (in hexadecimal format), the interface to which thebinding applies, and the VLAN to which the interface belongs. The database can have up to 8192bindings.Use the show ip dhcp snooping binding privileged EXEC command to display only the configuredbindings. Use the show ip source binding privileged EXEC command to display the dynamically andstatically configured bindings.ExamplesThis example shows how to generate a DHCP binding configuration with an expiration time of1000 seconds on a port in VLAN 1:Switch# ip dhcp snooping binding 0001.1234.1234 vlan 1 172.20.50.5 interfacegigabitethernet1/0/1 expiry 1000OL-9776-08Catalyst 3750-E and 3560-E Switch Command Reference2-233