Reference Guide

704 IPv6 Commands
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Default Configuration
All prefixes configured on interfaces that originate IPv6 router advertisements
are advertised with a valid lifetime of 2,592,000 seconds (30 days) and a
preferred lifetime of 604,800 seconds (7 days).
Note that by default:
• All prefixes are inserted in the routing table as connected prefixes.
• All prefixes are advertised as on-link (for example, the L-bit is set in the
advertisement)
• All prefixes are advertised as an auto-configuration prefix (for example, the
A-bit is set in the advertisement)
Command Mode
Interface Configuration mode
User Guidelines
This command enables control over the individual parameters per prefix,
including whether the prefix should be advertised.
Use the ipv6 nd prefix
ipv6-prefix / prefix-length command to add the prefix
to the Prefix table.
Use the no ipv6 nd prefix
ipv6-prefix / prefix-length command to remove the
prefix from the Prefix table.
Use the no ipv6 nd prefix command without the
ipv6-prefix / prefix-length
argument o remove all prefixes from the Prefix Table.
Note that the no ipv6 nd prefix command does not return the default values
to the original default values.
The switch supports the following advertisement algorithm:
• Advertise all prefixes that are configured as addresses on the interface
using the parameters defined by the
ipv6 nd prefix default command (or
the default value if the command has not been configured) except refixes
that are placed in the Prefix table (changed (configured) by the
ipv6 nd
prefix
command).
• Advertise all prefixes configured by the
ipv6 nd prefix command without
the
no-advertise keyword.