RADIUS

Name

Login-Service

Synopsis

Attribute Number	15
Length	6
Value	ENUM
Allowed in	Access-Accept
Prohibited in	Access-Request, Access-Reject, Access-Challenge
Presence in Packet	Not required
Maximum Iterations	1

This value specifies the type of service granted to the client. This attribute is intended for use in situations where plain terminal dial-up (i.e., to a shell account) is used. The attribute is exclusive from other framed protocol services. There are eight possible enumerated values for this attribute, which are listed in Table 3-4.

Table 3-4. Login-service attribute values

Value	Login service type
0	Telnet
1	Rlogin
2	TCP Clear
3	PortMaster (Lucent/Livingston)
4	LAT
5	X25-PAD
6	X25-T3POS
7	TCP Clear Quiet

A few of these services deserve further mention.

The standard services that are found most commonly in practice are the Telnet (0) and Rlogin (1) services. Both function to create a connection between the client and the remote host with the RADIUS client acting as a sort of proxy to each party. Most often these services are used to connect users to a Unix shell account or some other terminal service. TCP Clear (2) and TCP Clear Quiet (7) open a direct stream of TCP connectivity between the client and a remote host (the Quiet option simply suppresses announcements from the RADIUS client). The PortMaster (3) service is a proprietary service that connects the user to Livingston (now Lucent) NAS equipment. Finally, the LAT service (4) ...