ZyXEL P-791R v2 Guia Do Utilizador

P-791R v2 Support Notes

Reference

1. PPP Numbers

POINT-TO-POINT PROTOCOL FIELD ASSIGNMENTS

PPP DLL PROTOCOL NUMBERS

The Point-to-Point Protocol (PPP) Data Link Layer [146,147,175] contains a 16
bit Protocol field to identify the encapsulated protocol. The Protocol field is
consistent with the ISO 3309 (HDLC) extension mechanism for Address fields.
All Protocols MUST be assigned such that the least significant bit of the most
significant octet equals "0", and the least significant bit of the least significant
octet equals "1".

•

Network Layer Numbers

Value (in hex)        Protocol Name
---------------------------------------------------------------------
0001      Padding Protocol
0003 to 001f reserved (transparency inefficient)
0021        Internet Protocol version 4
0023      OSI Network Layer
0025        Xerox NS IDP
0027      DECnet Phase IV
0029      AppleTalk
002b      Novell IPX
002d        Van Jacobson Compressed TCP/IP
002f      Van Jacobson Uncompressed TCP/IP
0031      Bridging PDU
0033      Stream Protocol (ST-II)
0035      Banyan Vines
0037      reserved (until 1993)
0039        AppleTalk EDDP
003b        AppleTalk SmartBuffered
003d      Multi-Link [RFC1717]
003f        NETBIOS Framing
0041        Cisco Systems
0043        Ascom Timeplex
0045        Fujitsu Link Backup and Load Balancing (LBLB)
0047        DCA Remote Lan
0049      Serial Data Transport Protocol (PPP-SDTP)