0  RTM_MISS                          = 0x0  RTM_NEWADDR                       = 0xc  RTM_REDIRECT                      = 0x0  RTM_RESOLVE                       = 0xb  RTM_RTTUNIT                       = 0xf0000  RTM_VERSION                       = 0x0  RTV_EXPIRE                        = 0x0  RTV_HOPCOUNT                      = 0x0  RTV_MTU                           = 0x0  RTV_RPIPE                         = 0x0  RTV_RTT                           = 0x00  RTV_RTTVAR                        = 0x00  RTV_SPIPE                         = 0x00  RTV_SSTHRESH                      = 0x00  R