Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 641
ip dhcp snooping, ip dhcp snooping binding, Syntax, Defaults, Command Modes, Command, History
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ip dhcp snooping Enable DHCP snooping globally. C9000 Series Syntax [no] ip dhcp snooping Defaults Disabled Command Modes CONFIGURATION Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. Version Description 9.9(0.0) 9.2(1.0) 9.2.(0.0) 8.3.11.1 8.3.1.0 8.2.1.0 7.8.1.0 Introduced on the C9010. Introduced on the Z9500. Introduced on the S4810 and S4820T. Introduced on the Z9000. Introduced on the E-Series. Introduced on the C-Series and S-Series on Layer 2 interfaces. Introduced on the C-Series and S-Series on Layer 3 interfaces. Usage Information Related Commands When enabled, no learning takes place until you enable snooping on a VLAN. After disabling DHCP snooping, the binding table deletes and Option 82, IP Source Guard, and Dynamic ARP Inspection are disabled. DHCP snooping supports Layer 3 using DHCP Relay Agent (ip helper-address) and Layer 2. You do not have to enable relay agent to snoop on Layer 2 interfaces. ip dhcp snooping vlan - enables DHCP snooping on one or more VLANs. ip dhcp snooping binding Create a static entry in the DHCP binding table. Syntax Parameters [no] ip dhcp snooping binding mac address vlan-id vlan-id ip ip-address interface interface-type lease number mac address vlan-id vlan-id ip ip-address interface type Enter the keyword mac then the MAC address of the host to which the server is leasing the IP address. Enter the keywords vlan-id then the VLAN to which the host belongs. The range is from 2 to 4094. Enter the keyword ip then the IP address that the server is leasing. Enter the keyword interface then the type of interface to which the host is connected: ● For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port information. ● For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the slot/port information. Dynamic Host Configuration Protocol (DHCP) 641
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