Ietf Tagged Attributes On Lac - Cisco ASR 9000 Series Configuration Manual

RADIUS Attributes
Name
NAS-IPv6-Address
Delegated-IPv6-Prefix
Stateful-IPv6-Address-Pool
Framed-IPv6-Prefix
Framed-Interface-Id
Framed-IPv6-Pool
Framed-IPv6-Route
login-ip-addr-host

IETF Tagged Attributes on LAC

The IETF Tagged Attributes support on L2TP Access Concentrator (LAC) provides a means of grouping
tunnel attributes referring to the same tunnel in an Access-Accept packet sent from the RADIUS server to the
LAC. The Access-Accept packet can contain multiple instances of same RADIUS attributes, but with different
tags. The tagged attributes support ensures that all attributes pertaining to a given tunnel contain the same
value in their respective tag fields, and that each set includes an appropriately-valued instance of the
Tunnel-Preference attribute. This conforms to the tunnel attributes that are to be used in a multi-vendor network
environment, thereby eliminating interoperability issues among Network Access Servers (NASs) manufactured
by different vendors.
For details of RADIUS Attributes for Tunnel Protocol Support, refer
These examples describe the format of IETF Tagged Attributes:
Tunnel-Type = :0:L2TP, Tunnel-Medium-Type = :0:IP, Tunnel-Server-Endpoint = :0:"1.1.1.1",
Tunnel-Assignment-Id = :0:"1", Tunnel-Preference = :0:1, Tunnel-Password = :0:"hello"
A tag value of 0 is used in the above example in the format of
that refer to the same tunnel. Similar examples are:
Tunnel-Type = :1:L2TP, Tunnel-Medium-Type = :1:IP, Tunnel-Server-Endpoint = :1:"2.2.2.2",
Tunnel-Assignment-Id = :1:"1", Tunnel-Preference = :1:1, Tunnel-Password = :1:"hello"
Tunnel-Type = :2:L2TP, Tunnel-Medium-Type = :2:IP, Tunnel-Server-Endpoint = :2:"3.3.3.3",
Tunnel-Assignment-Id = :2:"1", Tunnel-Preference = :2:2, Tunnel-Password = :2:"hello"
Tunnel-Type = :3:L2TP, Tunnel-Medium-Type = :3:IP, Tunnel-Server-Endpoint = :3:"4.4.4.4",
Tunnel-Assignment-Id = :3:"1", Tunnel-Preference = :3:2, Tunnel-Password = :3:"hello"
Tunnel-Type = :4:L2TP, Tunnel-Medium-Type = :4:IP, Tunnel-Server-Endpoint = :4:"5.5.5.5",
Tunnel-Assignment-Id = :4:"1", Tunnel-Preference = :4:3, Tunnel-Password = :4:"hello"
Tunnel-Type = :5:L2TP, Tunnel-Medium-Type = :5:IP, Tunnel-Server-Endpoint = :5:"6.6.6.6",
Tunnel-Assignment-Id = :5:"1", Tunnel-Preference = :5:3, Tunnel-Password = :5:"hello"
OL-28375-03
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Configuration Guide, Release
Value
string
binary
binary
binary
binary
string
string
string
, to group those attributes in the same packet
:0:
IETF Tagged Attributes on LAC
Type
95
123
123
97
96
100
99
98
RFC 2868.
4.3.x
295