Enumeration LinkType

APPLEtalk

ARCnet

Nexus 64Mbps Ash

ATM

AX.25 Level 2

AP1000 BIF

CAIF media type

Controller Area Network

Chaosnet

Cisco HDLC

Digital's DDCMP protocol

Frame Relay DLCI

Acorn Econet

Experimental Ethernet

Ethernet 10Mbps

EUI-64

Fibrechannel arbitrated loop

Fibrechannel fabric

Fibrechannel public loop

Point to point fibrechannel

Fiber Distributed Data Interface

Frame Relay Access Device

High Performance Parallel Interface

Boards with X.25 in firmware

IEEE 1394 IPv4 - RFC 2734

IEEE 802.2 Ethernet/TR/TB

IEEE 802.11

IEEE 802.11 + Prism2 header

IEEE 802.11 + radiotap header

IEEE 802.15.4 network monitor

Magic type ident for TR

InfiniBand

GRE over IPv6

IP over DDP tunneller

GRE over IP

Linux-IrDA

LAPB

Localtalk device

Loopback device

Metricom STRIP (new IANA id)

Netlink header

from KA9Q: NET/ROM pseudo

zero header length

PhoNet media type

PhoNet pipe header

PIMSM register interface

PROnet token ring

Raw HDLC

Raw IP

Notional KISS type

sit0 device - IPv6-in-IPv4

SKIP vif

IPIP tunnel

IP6IP6 tunnel

Void type, nothing is known

Vsock monitor header

CCITT X.25

IPv6 over LoWPAN