Digisol DG-GS4826S Management Manual page 1151

Duplicate address detection is stopped on any interface that has been
u
suspended (see the
all unicast IPv6 addresses assigned to that interface are placed in a
"pending" state. Duplicate address detection is automatically restarted
when the interface is administratively re-activated.
An interface that is re-activated restarts duplicate address detection for
u
all unicast IPv6 addresses on the interface. While duplicate address
detection is performed on the interface's link-local address, the other
IPv6 addresses remain in a "tentative" state. If no duplicate link-local
address is found, duplicate address detection is started for the
remaining IPv6 addresses.
If a duplicate address is detected, it is set to "duplicate" state, and a
u
warning message is sent to the console. If a duplicate link-local address
is detected, IPv6 processes are disabled on the interface. If a duplicate
global unicast address is detected, it is not used. All configuration
commands associated with a duplicate address remain configured while
the address is in "duplicate" state.
If the link-local address for an interface is changed, duplicate address
u
detection is performed on the new link-local address, but not for any of
the IPv6 global unicast addresses already associated with the interface.
E
XAMPLE
The following configures five neighbor solicitation attempts for addresses
configured on VLAN 1. The
duplicate address detection process is still on-going.
Console(config)#interface vlan 1
Console(config-if)#ipv6 nd dad attempts 5
Console(config-if)#end
Console#show ipv6 interface
Vlan 1 is up
IPv6 is enable.
Link-local address:
FE80::2E0:CFF:FE9C:CA10/64
Global unicast address(es):
2001:DB8:2222:7272::/64, subnet is 2001:DB8:2222:7272::/64
2009:DB9:2229::79, subnet is ::
Joined group address(es):
FF02::2
FF02::1:FF00:0
FF02::1:2
FF02::1:FF9C:CA10
FF02::1
IPv6 link MTU is 1500 bytes
ND DAD is enabled, number of DAD attempts: 5.
ND retransmit interval is 1000 milliseconds
Console#
R C
ELATED OMMANDS
ipv6 nd ns-interval (1152)
show ipv6 neighbors (1154)
– 1151 –
C
HAPTER
vlan command). While an interface is suspended,
show ipv6 interface
47 | IP Interface Commands
IPv6 Interface
command indicates that the