Operation Manual – IPv6H3C S5500-SI Series Ethernet Switches Chapter 1 IPv6 Basics Configuration1-13To do... Use the command... RemarksEnter system view system-view —Enable the IPv6 packetforwarding function ipv6 RequiredDisabled by default.1.3.2 Configuring an IPv6 Unicast AddressIPv6 site-local addresses and aggregatable global unicast addresses can beconfigured in the following ways:z EUI-64 format: When the EUI-64 format is adopted to form IPv6 addresses, theIPv6 address prefix of an interface is the configured prefix and the interfaceidentifier is derived from the link-layer address of the interface.z Manual configuration: IPv6 site-local addresses or aggregatable global unicastaddresses are configured manually.IPv6 link-local addresses can be configured in either of the following ways:z Automatic generation: The device automatically generates a link-local address foran interface according to the link-local address prefix (FE80::/64) and thelink-layer address of the interface.z Manual assignment: IPv6 link-local addresses can be assigned manually.Follow these steps to configure an IPv6 unicast address:To do... Use the command... RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Manually assignan IPv6 addressipv6 address{ ipv6-addressprefix-length |ipv6-address/prefix-length }Configurean IPv6aggregatable globalunicastaddress orsite-localaddressAdopt the EUI-64format to form anIPv6 addressipv6 addressipv6-address/prefix-length eui-64Required to useeither command.By default, nosite-local address oraggregatable globalunicast address isconfigured for aninterface.