IP Addressing Commands
229
User Guidelines
•
Duplicate address detection verifies the uniqueness of new unicast IPv6 addresses before the addresses
are assigned to interfaces (the new addresses remain in a tentative state while duplicate address
detection is performed). Duplicate address detection uses neighbor solicitation messages to verify the
uniqueness of unicast IPv6 addresses.
•
An interface returning to administratively “up” restarts duplicate address detection for all of the
unicast IPv6 addresses on the interface. While duplicate address detection is performed on the
link-local address of an interface, the state for the other IPv6 addresses is still set to TENTATIVE.
When duplicate address detection is completed on the link-local address, duplicate address detection
is performed on the remaining IPv6 addresses.
•
When duplicate address detection identifies a duplicate address, the state of the address is set to
DUPLICATE and the address is not used. If the duplicate address is the link-local address of the
interface, the processing of IPv6 packets is disabled on the interface and an error message is displayed.
•
All configuration commands associated with the duplicate address remain as configured while the state
of the address is set to DUPLICATE.
•
If the link-local address for an interface changes, duplicate address detection is performed on the new
link-local address and all of the other IPv6 address associated with the interface are regenerated
(duplicate address detection is performed only on the new link-local address).
•
Until DAD process is completed, an IPv6 address is in tentative state and can not be used for data
transfer. It is recommended to limit the configured value.
Example
The following example configures the number of consecutive neighbor solicitation messages that are
sent on an interface while duplicate address detection is performed on the unicast IPv6 addresses of the
interface to 10.
ipv6 host
The
ipv6 host
Global Configuration mode command defines a static host name-to-address mapping in
the host name cache. Use the
no
form of this command to remove the host name-to-address mapping.
Console# Console (config)#
interface
g1
Console (config-if)#
ipv6 nd dad attempts
10
5400_CLI.book Page 229 Wednesday, December 17, 2008 4:33 PM
Summary of Contents for PowerConnect 5424
Page 114: ...114 Address Table Commands 5400_CLI book Page 114 Wednesday December 17 2008 4 33 PM ...
Page 178: ...178 Ethernet Configuration Commands 5400_CLI book Page 178 Wednesday December 17 2008 4 33 PM ...
Page 194: ...194 GVRP Commands 5400_CLI book Page 194 Wednesday December 17 2008 4 33 PM ...
Page 204: ...204 IGMP Snooping Commands 5400_CLI book Page 204 Wednesday December 17 2008 4 33 PM ...
Page 252: ...252 Line Commands 5400_CLI book Page 252 Wednesday December 17 2008 4 33 PM ...
Page 268: ...268 LLDP Commands 5400_CLI book Page 268 Wednesday December 17 2008 4 33 PM ...
Page 280: ...280 PHY Diagnostics Commands 5400_CLI book Page 280 Wednesday December 17 2008 4 33 PM ...
Page 288: ...288 Port Monitor Commands 5400_CLI book Page 288 Wednesday December 17 2008 4 33 PM ...
Page 300: ...300 QoS Commands 5400_CLI book Page 300 Wednesday December 17 2008 4 33 PM ...
Page 308: ...308 Radius Commands 5400_CLI book Page 308 Wednesday December 17 2008 4 33 PM ...
Page 326: ...326 RMON Commands 5400_CLI book Page 326 Wednesday December 17 2008 4 33 PM ...
Page 386: ...386 SSH Commands 5400_CLI book Page 386 Wednesday December 17 2008 4 33 PM ...
Page 400: ...400 Syslog Commands 5400_CLI book Page 400 Wednesday December 17 2008 4 33 PM ...
Page 418: ...418 System Management 5400_CLI book Page 418 Wednesday December 17 2008 4 33 PM ...
Page 432: ...432 TIC Commands 5400_CLI book Page 432 Wednesday December 17 2008 4 33 PM ...
Page 440: ...440 Tunnel 5400_CLI book Page 440 Wednesday December 17 2008 4 33 PM ...
Page 476: ...476 Voice VLAN 5400_CLI book Page 476 Wednesday December 17 2008 4 33 PM ...
Page 490: ...490 Web Server 5400_CLI book Page 490 Wednesday December 17 2008 4 33 PM ...