Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    AAA Accounting Messages During IPCP Negotiations for Dual-Stack Subscribers

    The Ipv4-release-control RADIUS VSA attribute [26-164] is supported only in Interim-Acct messages. The following sections describe the different scenarios during the negotiation of IPCP packets for IPv4 addresses and release of addresses for terminated user sessions in a dual-stack network, and the transmission of interim accounting messages between the router and the AAA server.

    Interim-Acct Messages When an IPv4 Address is Assigned

    The following RADIUS attributes are always included in Interim-Acct messages when an IPv4 address is assigned to a dual-stack subscriber during an IPCP negotiation:

    • [55] Event-Timestamp
    • [25] Class
    • [97] Framed-Ipv6-Prefix
    • [8] Framed-Ip-Address
    • [9] Framed-Ip-Netmask

    The other attributes supported in Interim-Acct messages are included, based on the user configuration settings.

    Interim-Acct Messages When an IPv4 Address is Not Assigned

    The following RADIUS attributes are always included in Interim-Acct messages when an IPv4 address is not assigned to a dual-stack subscriber during an IPCP negotiation:

    • [55] Event-Timestamp
    • [25] Class
    • [97] Framed-Ipv6-Prefix

    The other attributes supported in Interim-Acct messages are included, based on the user configuration settings.

    The following RADIUS attributes are never included in Interim-Acct messages when IPv4 address assignment fails:

    • [8] Framed-Ip-Address
    • [9] Framed-Ip-Netmask

    Interim-Acct Messages During a Successful IPCP Renegotiation for IPv4 Addresses

    The following RADIUS attributes are always included in Interim-Acct messages upon the receipt of IPCP configuration requests for IPv4 addresses from CPE and a successful IPCP renegotiation:

    • [26-164] Ipv4-release-control
    • [55] Event-Timestamp
    • [25] Class
    • [97] Framed-Ipv6-Prefix
    • [8] Framed-Ip-Address
    • [9] Framed-Ip-Netmask
    • [123] Delegated-Ipv6-Prefix
    • [44] Acct-Session-Id

    The other attributes supported in Interim-Acct messages are included, based on the user configuration settings.

    Interim-Acct Messages During a Failed IPCP Renegotiation for IPv4 Addresses

    The following RADIUS attributes are always included in Interim-Acct messages after the receipt of IPCP configuration requests for IPv4 addresses from CPE and a failed IPCP renegotiation:

    • [26-164] Ipv4-release-control
    • [55] Event-Timestamp
    • [25] Class
    • [97] Framed-Ipv6-Prefix
    • [123] Delegated-Ipv6-Prefix
    • [44] Acct-Session-Id

    The other attributes supported in Interim-Acct messages are included, based on the user configuration settings.

    The following RADIUS attributes are never included in Interim-Acct messages when IPv4 address assignment fails after an IPCP renegotiation:

    • [8] Framed-Ip-Address
    • [9] Framed-Ip-Netmask

    Interim-Acct Messages When an IPv4 Address is Released

    The following RADIUS attributes are always included in Interim-Acct messages when an IPv4 address is released upon the termination of a subscriber session:

    • [26-164] Ipv4-release-control
    • [55] Event-Timestamp
    • [25] Class
    • [97] Framed-Ipv6-Prefix
    • [123] Delegated-Ipv6-Prefix
    • [44] Acct-Session-Id

    The other attributes supported in Interim-Acct messages are included, based on the user configuration settings.

    The following RADIUS attributes are never included in Interim-Acct messages when an IPv4 address is released to the AAA server:

    • [8] Framed-Ip-Address
    • [9] Framed-Ip-Netmask

    For both these attributes, even if the IP address assigned to the user is 0.0.0.0, it is discarded and not included in the accounting messages.

    Published: 2014-08-13