ZyXEL Communications P-791R V2 Support Notes page 83

22 unassigned
23 LZS-DCP [RFC1967]
24 MVRCA (Magnalink) [RFC1975]
25 DCE [RFC1976]
26 Deflate [RFC1979]
27-254 unassigned
255 Reserved [RFC1962]
The unassigned values 4-15 are intended to be assigned to other freely
available compression algorithms that have no license fees.
•
PPP SDCP CONFIGURATION OPTIONS
A one octet field is used in the Compression Control Protocol (CCP) PPP
Serial Data Transport Protocol (SDTP) to indicate the option type [RFC1963].
SDCP Option
----------------------------------------------------------------------------------
1 Packet-Format [RFC1963]
2 Header-Type [RFC1963]
3 Length-Field-Present [RFC1963]
4 Multi-Port [RFC1963]
5 Transport-Mode [RFC1963]
6 Maximum-Frame-Size [RFC1963]
7 Allow-Odd-Frames [RFC1963]
8 FCS-Type [RFC1963]
9 Flow-Expiration-Time [RFC1963]
Note that Option Types 5-8 are specific to a single port and require port
numbers in their format. Option Types 6-8 are specific to the
HDLC-Synchronous Transport-Mode.
•
PPP AUTHENTICATION ALGORITHMS
A one octet field is used in the Challenge-Handshake Authentication Protocol
(CHAP) to indicate which algorithm is in use [RFC1994].
Number Name
------------------------------------------------------------------
0 Reserved [RFC1994]
1 Reserved [RFC1994]
2 Reserved [RFC1994]
3 Reserved [RFC1994]
4 Reserved [RFC1994]
5 CHAP with MD5 [RFC1994]
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Configuration Element
P-791R v2 Support Notes
83