5.33 Proxy-State

5.33. Proxy-State

Description

  This Attribute is available to be sent by a proxy server to
  another server when forwarding an Access-Request and MUST be
  returned unmodified in the Access-Accept, Access-Reject or
  Access-Challenge.  When the proxy server receives the response to
  its request, it MUST remove its own Proxy-State (the last Proxy-
  State in the packet) before forwarding the response to the NAS.

  If a Proxy-State Attribute is added to a packet when forwarding
  the packet, the Proxy-State Attribute MUST be added after any
  existing Proxy-State attributes.

  The content of any Proxy-State other than the one added by the
  current server should be treated as opaque octets and MUST NOT
  affect operation of the protocol.

  Usage of the Proxy-State Attribute is implementation dependent.  A
  description of its function is outside the scope of this
  specification.

A summary of the Proxy-State Attribute format is shown below. The fields are transmitted from left to right.

0                   1                   2
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- | Type | Length | String ... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

Type

  33 for Proxy-State.

Length

  >= 3

String

  The String field is one or more octets.  The actual format of the
  information is site or application specific, and a robust
  implementation SHOULD support the field as undistinguished octets.

  The codification of the range of allowed usage of this field is
  outside the scope of this specification.