module Cf_ip_common:The well-known protocol identifiers for IPv4 and IPv6 protocols.sig
..end
val zero : Cf_socket.protocol_t
val icmp : Cf_socket.protocol_t
val ipv4 : Cf_socket.protocol_t
val ipv6 : Cf_socket.protocol_t
val tcp : Cf_socket.protocol_t
val udp : Cf_socket.protocol_t
The following socket options are available on sockets of AF_INET and
AF_INET6 address/protocol families.
val tcp_nodelay : (bool, [< `AF_INET | `AF_INET6 ], [ `SOCK_STREAM ]) Cf_socket.sockopt_t