Zyxel P-791R v2 [77/98] Reference

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)