D-Link DGS-3130 Emulator - Page 252

DGS-3130 Layer 3 Stackable Managed Switch CLI Reference Guide Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline Use this command to enable the prefix delegation request through an interface. The interface being configured will be in DHCP client mode. The prefix acquired from the server will be stored in the IPv6 general prefix pool represented by the general prefix name of the command, which will be in turn used in configuration of IPv6 addresses. Only one general prefix name can be specified for DHCPv6 PD on an interface. However, a general prefix name can be specified for DHCPv6 PD on multiple interfaces. The standard four-message exchange between the DR and the RR includes four messages: SOLICIT, ADVERTISE, REQUEST, and REPLY. When the rapid-commit parameter is specified, the RR will notify the DR in the SOLICIT message that it can skip receiving the ADVERTISE message and sending REQUEST message, and proceed directly with receiving the REPLY message from DR to complete a two-message exchange instead of the standard four-message exchange. The REPLY message contains the network configuration settings. The rapid-commit parameter must be enabled on both the DR and the RR to function properly. When the client receives advertisement from multiple servers, the client will take the server with best preference value. The client can accept multiple prefixes delegated from a server. The DHCP for IPv6 client, server and relay functions are mutually exclusive on an interface. Example This example shows how to configure an IPv6 address based on the general prefix "dhcp-prefix" on VLAN 2 and enables DHCPv6 prefix delegation on VLAN 1 with "dhcp-prefix" as the general prefix name and with the rapid commit option. Switch# configure terminal Switch(config)# interface vlan 2 Switch(config-if)# ipv6 address dhcp-prefix 0:0:0:7272::72/64 Switch(config-if)# exit Switch(config)# interface vlan 1 Switch(config-if)# ipv6 dhcp client pd dhcp-prefix rapid-commit Switch(config-if)# 22-3 show ipv6 dhcp This command is used to display the DHCPv6 related settings on the interface. show ipv6 dhcp [interface [INTERFACE-ID]] Parameters INTERFACE-ID Specifies the VLAN interface to display the DHCPv6 related settings. Default None. Command Mode User/Privileged EXEC Mode. 248