User's Manual

Table Of Contents
510
Users Manual of GPL-8000
Setting the number of transmitted NSs when ND performs DAD on a local port
Before the IPv6 port is started, it should send the NS information to the local machine to find if there is any
duplicate IPv6 address existing on links through DAD.
Command Purpose
ipv6 nd dad attempts num
Sets the number of transmitted NSs
when the local port performs DAD.
Setting the M flag in the RA message transmitted by the local port
The M flag indicates that the RA message host should obtain addresses through on-status automatic
configuration. To set the M flag in the RA message transmitted by the local port to 1, run the following
command.
Command Purpose
ipv6 nd managed-flag
Sets the M flag in the RA message
transmitted by the local port.
Setting the NS transmission interval of the local port and the retrans-timer field in the RA message
This command can be used to set the NS transmission interval of the local switch on the local port and at the
same time the retrans-timer field in the RA message on the local port.
The host sets its retrans-timer variable according to the retrans-timer field in RA.
Command Purpose
ipv6 nd ns-interval milliseconds
Means the NS retransmission interval
in the local port and the retrans-timer
field in the RA message.Its default
value is 1000ms.
Setting the O flag in the RA message transmitted by the local port
The O flag indicates that the RA message host should obtain other information through on-status automatic
configuration. To set the O flag in the RA message transmitted by the local port to 1, run the following
command:
Command Purpose
ipv6 nd other-flag
Sets the O flag in the RA message
transmitted by the local port.
Setting the prefix of the RA message
The router releases address prefixes to the network host via RA message. The address prefix plus the host
address is the entire unicast address. The prefix option is carried by the RA message, and the host obtains
the IPv6 address prefix and related parameter from this option.