ZyXEL Communications P-791R V2 Support Notes page 80

c025 Link Quality Report
c027 Shiva Password Authentication Protocol
c029 CallBack Control Protocol (CBCP)
c02b BACP Bandwidth Allocation Control Protocol [RFC2125]
c02d BAP [RFC2125]
c081 Container Control Protocol [KEN]
c223 Challenge Handshake Authentication Protocol
c225 RSA Authentication Protocol [Narayana]
c227 Extensible Authentication Protocol [RFC2284]
c229 Mitsubishi Security Info Exch Ptcl (SIEP) [Seno]
c26f Stampede Bridging Authorization Protocol
c281 Proprietary Authentication Protocol [KEN]
c283 Proprietary Authentication Protocol [Tackabury]
c481 Proprietary Node ID Authentication Protocol [KEN]
It is recommended that values in the "02xx" to "1exx" and "xx01" to "xx1f"
ranges not be assigned, as they are compression inefficient. Protocol field
values in the "0xxx" to "3xxx" range identify the network-layer protocol of
specific datagrams, and values in the "8xxx" to "bxxx" range identify
datagrams belonging to the associated Network Control Protocol (NCP), if any.
Protocol field values in the "4xxx" to "7xxx" range are used for protocols with
low volume traffic which have no associated NCP. Protocol field values in the
"cxxx" to "exxx" range identify datagrams as Control Protocols (such as
LCP).
•
PPP LCP AND IPCP CODES
The Point-to-Point Protocol (PPP) Link Control Protocol (LCP), the
Compression Control Protocol (CCP), Internet Protocol Control Protocol
(IPCP), and other control protocols, contain an 8 bit Code field which identifies
the type of packet. These Codes are assigned as follows:
Code Packet Type
---------------------------------------------------------
0 Vendor Specific [RFC2153]
1 Configure-Request
2 Configure-Ack
3 Configure-Nak
4 Configure-Reject
5 Terminate-Request
6 Terminate-Ack
7 Code-Reject
8 * Protocol-Reject
9 * Echo-Request
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P-791R v2 Support Notes
80