Address families are types of addresses for networking.
| ProtocolFamily | AddressFamily | ManPages | Protocol Type | Protocols | Description |
| PF_INET | AF_INET | ip(7) | SOCK_STREAM | TCP | IPv4 sockets |
| SOCK_DGRAM | UDP | ||||
| PF_INET6 | AF_INET6 | SOCK_STREAM | TCPv6 | IPv6 sockets | |
| SOCK_DGRAM | UDPv6 | ||||
| PF_UNIX, PF_LOCAL | AF_UNIX, AF_LOCAL | unix(7) | SOCK_STREAM | ---- | Unix domain sockets |
| SOCK_DGRAM | |||||
| PF_APPLETALK | AF_APPLETALK | ddp(7) | ---- | Appletalk sockets | |
| PF_X25 | ---- | x25(7) | ITU-T X.25 / ISO-8208 protocol | ||
| PF_IPX | ---- | ---- | IPX? -- Novell protocols | ||
| PF_AX25 | ---- | ---- | Amateur radio X.25 protocol | ||
| PF_ATMPVC | ---- | ---- | Access to raw ATM PVC's | ||
| PF_PACKET | AF_PACKET | packet(7) | Lowlevel packet interface | ||
| PF_NETLINK | AF_NETLINK | netlink(7) | Kernel user interface device | ||
See also:
3 pages link to AddressFamily: