Re: I-D Action:draft-ietf-radext-radius-extensions-00.txt

[Victor Gamov <vit@euro-comm.net>]

Hi All !

To extend Type space and allow large values I propose following format 
with new unassigned Type:

 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=0   |        Actual Length          |
+---------------+---------------+-------------------------------+
| New Type (up to 65535 types)  |Long Value (up to 65529 bytes)..
+---------------+---------------+---------------+---------------+

Incompatible implementations will generate reject or discard such 
attributes due Length=0.



To allow VSA with extended types (more than 255) and values (Type is new 
unassigned type):

 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=0   |        Actual Length          |
+---------------+---------------+-------------------------------+
|                           Vendor ID                           |
+---------------+---------------+---------------+---------------+
|            VSA Type           |Long Value (up to 65525 bytes)..
+---------------+---------------+---------------+---------------+

In more general, second format may be used to extend RADIUS-standard 
attributes when 'Vendor ID' = 0

--
CU,
Victor Gamov

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