| 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 |