Radius 字段杂记

字段：MDN 俗称电话号码：应该是对应各个电话厂商的ID，不是IMSI哈，

参考：http://www.ietf.org/rfc/rfc2865.txt

可以看出type = 26 被编码为一个类型的供应商/供应商的长度序列

Description

This Attribute is available to allow vendors to support their own
extended Attributes not suitable for general usage. It MUST not
affect the operation of the RADIUS protocol.

Servers not equipped to interpret the vendor-specific information
sent by a client MUST ignore it (although it may be reported).
Clients which do not receive desired vendor-specific information
SHOULD make an attempt to operate without it, although they may do
so (and report they are doing so) in a degraded mode.

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

0                     1                         2                                3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Vendor-Id
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Vendor-Id (cont) | String...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-