Duplicate Ipv6 Prefix Check Overview - Juniper JUNOSE SOFTWARE 11.2.X - BROADBAND ACCESS CONFIGURATION GUIDE 7-20-2010 Configuration Manual

JunosE 11.2.x Broadband Access Configuration Guide
aaa ipv6-nd-ra-prefix framed-ipv6-prefix
aaa dhcpv6-delegated-prefix delegated-ipv6-prefix

Duplicate IPv6 Prefix Check Overview

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Use to set the Framed-IPv6-Prefix RADIUS attribute to be used for IPv6 Neighbor
Discovery router advertisements.
If you issue this command without issuing the aaa dhcpv6-delegated-prefix
delegated-ipv6-prefix command, a warning message is displayed prompting you to
configure the Delegated-IPv6-Prefix attribute for DHCPv6 Prefix Delegation. The
message also states that the Framed-IPv6-Prefix RADIUS attribute will be used for
both IPv6 Neighbor Discovery router advertisements and DHCPv6 Prefix Delegation,
if the Delegated-IPv6-Prefix attribute is not configured for Prefix Delegation.
NOTE: This warning message is displayed only if you configured the logging severity
level as warning for the aaaServerGeneral logging event category.
Use the no version to restore the default behavior, which causes the IPv6-NdRa-Prefix
VSA to be used for router advertisements.
Example
host1:VR1(config)#aaa ipv6-nd-ra-prefix framed-ipv6-prefix
See aaa ipv6-nd-ra-prefix framed-ipv6-prefix.
Use to set the Delegated-IPv6-Prefix RADIUS attribute to be used for DHCPv6 Prefix
Delegation.
If you used the aaa ipv6-nd-ra-prefix framed-ipv6-prefix command to set the
Framed-IPv6-Prefix RADIUS attribute to be used for IPv6 Neighbor Discovery router
advertisements, you must also issue the aaa dhcpv6-delegated-prefix
delegated-ipv6-prefix command after you issue the aaa ipv6-nd-ra-prefix
framed-ipv6-prefix command to enable the use of the Delegated-IPv6-Prefix attribute
for DHCPv6 Prefix Delegation. Otherwise, the Framed-IPv6-Prefix attribute is used for
both IPv6 Neighbor Discovery router advertisements and DHCPv6 Prefix Delegation.
Use the no version to restore the default behavior, which causes the Framed-IPv6-Prefix
RADIUS attribute to be used for Prefix Delegation.
Example
host1:VR1(config)#aaa dhcpv6-delegated-prefix delegated-ipv6-prefix
See aaa dhcpv6-delegated-prefix delegated-ipv6-prefix.
You can configure AAA service to detect duplicates of IPv6 Neighbor Discovery router
advertisement prefixes and DHCPv6 delegated prefixes. If a non-unique IPv6 prefix is
detected by AAA, the subscriber session corresponding to the duplicate prefix is
terminated.
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