User's Manual

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hardware-address address into a link-layer address.
79.3 ND Configuration
The ND protocol is used not only for address resolution but for other functions such as neighbor solicitation,
neighbor advertisement, router solicitation, router advertisement and redirect.
The following commands are all run in port configuration mode:
 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