H3C Technologies H3C SecPath F1000-E - Manual (Page 111)

11
Task Remarks
Enabling Sending of ICMPv6 Destination Unreachable
Messages
Optional
Configuring Basic IPv6 Functions
Enabling IPv6
Enable IPv6 before you perform any IPv6-related configuration. Without IPv6 enabled, an interface
cannot forward IPv6 packets even if it has an IPv6 address configured.
Follow these steps to enable IPv6:
To do... Use the command... Remarks
Enter system view system-view —
Enable IPv6 ipv6
Required
Disabled by default.
Configuring IPv6 Site-Local Addresses and Global Unicast
Addresses
IPv6 site-local addresses and global unicast addresses can be configured in the following ways:
• EUI-64 format: When the EUI-64 format is used, the IPv6 address prefix of an interface is the
configured prefix, and the interface identifier is generated automatically by the interface.
• Manual configuration: IPv6 site-local addresses or global unicast addresses are configured
manually.
• Stateless address autoconfiguration: IPv6 global unicast addresses are generated automatically
based on the address prefix information contained in the RA message.
NOTE:
•
You can configure multiple IPv6 site-local addresses and global unicast addresses with different prefixes
on an interface.
• A manually configured global unicast address takes precedence over an automatically generated one.
If a global unicast address has been automatically generated on an interface when you manually
configure another one with the same address prefix, the latter overwrites the previous. The overwritten
automatic global unicast address will not be restored even if the manual one is removed. Instead, a new
global unicast address will be automatically generated based on the address prefix information in the
RA message that the interface receives at the next time.
EUI-64 format
Follow these steps to configure an interface to generate an EUI-64 IPv6 address: