IPv6 Configuration Guide K/KA/KB.15.15

Example 124 Detailed prefix configuration data for a specific VLAN
HP Switch(config)# show ipv6 nd ra prefix vlan 30
IPv6 Neighbor Discovery Prefix Information
VLAN Name : VLAN30
IPv6 Prefix : Default
Valid Lifetime : Infinite
Preferred Lifetime : Infinite
On-link Flag : On
Autonomous Flag : On
Advertise Flag : On
IPv6 Prefix : 2001:db8:f:1b::/64
Valid Lifetime : 11/31/2010 00:00:01
Preferred Lifetime : 11/01/2010 00:00:01
On-link Flag : Off
Autonomous Flag : On
Advertise Flag : On
IPv6 Prefix : 2001:db8:f:1d::/64
Valid Lifetime : 11/31/2010 00:00:01
Preferred Lifetime : 11/01/2010 00:00:01
On-link Flag : On
Autonomous Flag : On
Advertise Flag : On
General RA operation
An IPv6 routing switch configured as a member of a given VLAN transmits RAs for use by hosts
on the VLAN or tunnel. It also transmits unscheduled RAs in response to router solicitations received
from IPv6 hosts on the VLAN. The values a host receives in an RA are applied to settings that have
not already been configured on the host by the system operator. (Values in an RA can also replace
host settings that were learned from a previous RA.)
When IPv6 unicast routing is enabled, RAs are transmitted by default on VLANs or tunnels enabled
for IPv6 and configured with an IPv6 link-local address, unless RA transmission has been explicitly
suppressed. RA configuration includes:
PageDefaultAdvertisement Value
186Not setmanaged flag (M-bit)
186Not setother-config-flag (O-bit)
189The prefix of any global unicast IPv6 address
configured on the VLAN interface
1
prefix
—N/A; based on existing configurationlength
—2,592,000 seconds (30 days)valid lifetime
—604,800 seconds (7 days)preferred lifetime
—Set (host autoconfig enabled)autoconfig (A-bit)
—Set (use prefix on subject VLAN)on-link (L-bit)
—router advertisement transmission
interval
187600 secondsmaximum
General RA operation 199