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RADIUS attributes are missing in the Accounting-Request and the Access-Request when a Cisco router with IOS version 12.4 is used

Core issue

This problem occurs due to the presence of Cisco bug ID CSCsb42280.

When RADIUS is configured for Authentication, Authorization, and Accounting (AAA) for IPSec remote access users, some important RADIUS attributes are sometimes missing in the START and STOP Accounting-Request and Access-Request.

In the START Accounting-Requests, this attribute is missing:

RADIUS:  NAS-Port-Id  [87]

In the STOP Accounting-Requests, these attributes are missing:

RADIUS:  NAS-Port-Id  [87]
RADIUS:  Acct-Input-Octets  [42] 
RADIUS:  Acct-Output-Octets  [43]
RADIUS:  Acct-Input-Packets  [47]
RADIUS:  Acct-Output-Packets [48]

In the Access-Request, this attribute is missing:

RADIUS:  NAS-Port-Id  [87]

Resolution

As a workaround, download and upgrade the Cisco IOS  software version to 12.4(7.2)  or the latest version.

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