pkg net, const FlagUp Flags
pkg net, const IPv4len ideal-int
pkg net, const IPv6len ideal-int
pkg net, func CIDRMask(int, int) IPMask
pkg net, func Dial(string, string) (Conn, error)
pkg net, func DialIP(string, *IPAddr, *IPAddr) (*IPConn, error)
pkg net, func DialTCP(string, *TCPAddr, *TCPAddr) (*TCPConn, error)
pkg net, func DialTimeout(string, string, time.Duration) (Conn, error)

pkg net, func LookupNS(string) ([]*NS, error)
pkg net, method (*Dialer) Dial(string, string) (Conn, error)
pkg net, method (*IPConn) ReadMsgIP([]uint8, []uint8) (int, int, int, *IPAddr, error)
pkg net, method (*IPConn) WriteMsgIP([]uint8, []uint8, *IPAddr) (int, int, error)
pkg net, method (*UDPConn) ReadMsgUDP([]uint8, []uint8) (int, int, int, *UDPAddr, error)
pkg net, method (*UDPConn) WriteMsgUDP([]uint8, []uint8, *UDPAddr) (int, int, error)