macOS — Devices and Special Files

• aio(4) — asynchronous I/O
• arp(4) — Address Resolution Protocol
• audit(4) — Security Event Audit
• auditpipe(4) — pseudo-device for live audit event tracking
• bpf(4) — Berkeley Packet Filter
• dummynet(4) — traffic shaper, bandwidth manager and delay emulator
• fd(4), stdin(4), stdout(4), stderr(4) — file descriptor files
• gif(4) — generic tunnel interface
• icmp(4) — Internet Control Message Protocol
• icmp6(4) — Internet Control Message Protocol for IPv6
• ifmib(4) — Management Information Base for network interfaces
• inet(4) — Internet protocol family
• inet6(4) — Internet protocol version 6 family
• ip(4) — Internet Protocol
• ip6(4) — Internet Protocol version 6 (IPv6) network layer
• ipl(4) — IP packet log device
• ipsec(4) — IP security protocol
• lo(4) — software loopback network interface
• networking(4) — introduction to networking facilities
• null(4) — the null device
• pflog(4) — packet filter logging interface
• pty(4) — pseudo terminal driver
• random(4) — , urandom random data source devices
• route(4) — kernel packet forwarding database
• stf(4) — 6to4 tunnel interface
• tcp(4) — Internet Transmission Control Protocol
• termios(4) — general terminal line discipline
• tty(4) — general terminal interface
• udp(4) — Internet User Datagram Protocol
• unix(4) — UNIX-domain protocol family
• vsock(4) — VM Sockets