Cisco Cisco Packet Data Interworking Function (PDIF) Manual De Mantenimiento
RADIUS Attribute Definitions
▀ Attribute Notes
▄ Cisco ASR 5000 Series AAA Interface Administration and Reference
OL-22955-01
Attribute Notes
This section contains notes that apply to groups of attributes that have been included in support of specific features
and/or functionality.
and/or functionality.
RFC 2868 Tunneling Attributes
Tunnel attributes may be tagged, which means the leading byte in the value field may be used to group attributes
together. This is used to return a number of different tunnel configurations that are available to the subscriber. The
tagged group with the highest tunnel preference (the lowest value of the Tunnel-Preference attribute) has precedence
over other tunnel configurations.
together. This is used to return a number of different tunnel configurations that are available to the subscriber. The
tagged group with the highest tunnel preference (the lowest value of the Tunnel-Preference attribute) has precedence
over other tunnel configurations.
Tags can be a value from 1 through 31. Any value outside of this range for the leading byte means the attribute is not
tagged, and the leading byte is then interpreted as part of the attribute value. Integer attributes that are tagged are three
bytes in length (the leading byte is ignored), but are four bytes in length when not tagged (the leading byte is
incorporated).
tagged, and the leading byte is then interpreted as part of the attribute value. Integer attributes that are tagged are three
bytes in length (the leading byte is ignored), but are four bytes in length when not tagged (the leading byte is
incorporated).
If Tunnel attributes appear more than once in the RADIUS Accept-Accept but are not tagged, then the system treats the
attributes as having an implicit tag. The first instance of the attribute has a tag value of 32, the second instance has a tag
value of 33, etc.
attributes as having an implicit tag. The first instance of the attribute has a tag value of 32, the second instance has a tag
value of 33, etc.