constant description ipproto_eon ipproto_esp ipproto_fragment ipproto_ggp iso cnlp (connectionless network protocolipv encapsulating security payload ipv fragmentation header gateway to gateway protocol (rfc generic routing encapsulation (rfc fuzzball hello protocol ipv hop-by-hop options ipv icmp ipv icmp xns idp group management protocol ipv ip payload compression protocol ip inside ip ipv header ipv header ip mobility netdisk protocol ipv no next header protocol independent multicast xerox parc universal packet (pupraw ip packet ipv routing header resource reservation tcp osi transport protocol (tp- udp virtual router redundancy protocol express transfer protocol ipproto_gre ipproto_hello ipproto_hopopts ipproto_icmp ipproto_icmpv ipproto_idp ipproto_igmp ipproto_ip ipproto_ipcomp ipproto_ipip ipproto_ipv ipproto_ipv ipproto_mobile ipproto_nd ipproto_none ipproto_pim ipproto_pup ipproto_raw ipproto_routing ipproto_rsvp ipproto_tcp ipproto_tp ipproto_udp ipproto_vrrp ipproto_xtp the following protocol numbers are used with af_bluetoothconstant description btproto_l cap btproto_hci btproto_rfcomm btproto_sco logical link control and adaption protocol host/controller interface cable replacement protocol synchronous connection oriented link socketpair([family [type [proto ]]]creates pair of connected socket objects using the given familytypeand proto optionswhich have the same meaning as for the socket(function this function only applies to unix domain sockets (family=af_unixtype may be either sock_dgram or sock_stream if type is sock_streaman object known as stream pipe is created proto is usually (the defaultthe primary use of this function would lib fl ff