RFC 2153 (rfc2153) - Page 3 of 6
PPP Vendor Extensions
Alternative Format: Original Text Document
RFC 2153 PPP vendor extensions May 1997
Value(s)
Zero or more octets. The details are implementation specific.
2. Configuration Options
The Configuration Option format and basic options are already defined
for LCP [1].
Up-to-date values of the LCP Option Type field are specified in the
most recent "Assigned Numbers" [2]. This document concerns the
following values:
0 Vendor-Specific
2.1. Vendor-Specific Option
Description
Some implementors might not need nor want to publish their
proprietary algorithms and attributes. This mechanism is
available to specify these without encumbering the IANA with
proprietary number requests.
Before accepting this option, the implementation must verify that
the Organizationally Unique Identifier and Kind specify a known
mechanism, and that any vendor specific negotiation values are
fully understood.
Rationale:
This is defined as general feature of all PPP Control Protocols,
to avoid future conflicts in vendor secretly self-assigned Type
numbers.
A summary of the Vendor-Specific Configuration Option format is shown
below. The fields are transmitted from left to right.
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | OUI
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
... | Kind | Value(s) ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Simpson Informational