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dualstack-support (JSRC)


Hierarchy Level


Configure JSRC provisioning for dual-stack subscribers so that it reports information about the separate stacks for a given subscriber, using a single JSRC session. By default (and in all cases for releases earlier than Junos OS Release 18.1R1), the DHCPv4 and DHCPv6 stacks are treated as a single subscriber; the remote SRC peer (SAE) is not informed about whether only one family or both families are active. The statistics are reported as an aggregate of both families rather than separated by family.

When you configure dual-stack support for JSRC, Diameter AA-Request (AAR) provisioning messages sent to the SAE include Diameter AVPs (IANA enterprise number 2636) to convey the IPv4 and IPv6 addressing information that is available in the session database. For IPv4, that includes Framed-IP-Address (AVP 8) and Framed-IP-Netmask (AVP 9). For IPv6, that includes Framed-IPv6-Address (AVP 168), Framed-IPv6-Prefix (AVP 97), Delegated-IPv6-Prefix (AVP 123), Juniper-IPv6-Ndra-Prefix (AVP 2200), and Juniper-Framed-IPv6-Netmask (AVP 2201). JSRC also includes information about the access line if it is available in the session database, by means of Juniper-Agent-Circuit-Id (AVP 2202) and Juniper-Remote-Circuit-Id (AVP 2203).

When the first network family is activated, JSRC sends the addresses for only that family in the initial request to the provisioning server. When the second network family is activated, the AAR message includes the Juniper-Request-Type AVP (2050) with a value of 4 to signify family activation. When the next-to-last family is deactivated, the same AVP is sent with a value of 5 to signify the deactivation.



Required Privilege Level

admin—To view this statement in the configuration.

admin-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 18.1R1.