Verizon proactive SIM TCP attempt

No.     Time           Src                   Dest                  Protocol Length Info
  18004 125.505741919  192.168.66.123        192.168.66.240        GSM SIM  110    ETSI TS 102.221 FETCH Proactive Command OPEN CHANNEL
  18049 126.081897814  192.168.99.1          69.78.235.57          TCP      130    42966 → 8443 [SYN] Seq=0 Win=4194 Len=0 MSS=1398 SACK_PERM=1 TSval=21054579 TSecr=0 WS=256
  18137 126.581624681  192.168.99.1          69.78.235.57          TCP      130    [TCP Retransmission] 42966 → 8443 [SYN] Seq=0 Win=4194 Len=0 MSS=1398 SACK_PERM=1 TSval=21054679 TSecr=0 WS=256
  18516 128.575371043  192.168.99.1          69.78.235.57          TCP      130    [TCP Retransmission] 42966 → 8443 [SYN] Seq=0 Win=4194 Len=0 MSS=1398 SACK_PERM=1 TSval=21054879 TSecr=0 WS=256
  19294 132.578774251  192.168.99.1          69.78.235.57          TCP      130    [TCP Retransmission] 42966 → 8443 [SYN] Seq=0 Win=4194 Len=0 MSS=1398 SACK_PERM=1 TSval=21055280 TSecr=0 WS=256