2-256Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command ReferenceOL-13271-03Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commandsipv6 dhcp ping packetsipv6 dhcp ping packetsUse the ipv6 dhcp ping packets global configuration command on the switch stack or on a standaloneswitch to specify the number of packets a Dynamic Host Configuration Protocol for IPv6 (DHCPv6)server sends to a pool address as part of a ping operation. To prevent the server from pinging pooladdresses, use the no form of this command.ipv6 dhcp ping packets numberno ipv6 dhcp ping packetsNote This command is available only if you have configured a dual IPv4 and IPv6 Switch DatabaseManagement (SDM) template on the switch.Syntax DescriptionDefaults The default is 0.Command Modes Global configurationCommand HistoryUsage Guidelines To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 {default |vlan} global configuration command, and reload the switch.The DHCPv6 server pings a pool address before assigning the address to a requesting client. If the pingis unanswered, the server assumes, with a high probability, that the address is not in use and assigns theaddress to the requesting client.Setting the number argument to 0 turns off the DHCPv6 server ping operation.Examples This example specifies two ping attempts by the DHCPv6 server before further ping attempts stop:Switch(config)# ipv6 dhcp ping packets 2number The number of ping packets sent before the address is assigned to arequesting client. The range is 0 to 10.Release Modification12.2(46)SE This command was introduced.
