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Why is OS X connecting to apple on multiple port numbers?

403 Views 3 Replies Latest reply: Feb 13, 2014 12:41 AM by Neil Paisnel RSS
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Oct 27, 2013 4:17 AM

My router is reporting that at random times, the IP addess of my airport on my imac is trying to connect to an IP address (which seems to belong to Apple - 17.172.208.43) on multiple sequential ports.

 

Didnt do this before Mavericks. What could be causing this?

 

2013/10/27 11:16:51 -- [DOS][Block][tcp_flag, scanner=fin_wo_ack][192.168.0.24:51864->17.172.208.43:443][TCP][HLen=20, TLen=52, Flag=F, Seq=3462246037, Ack=0, Win=65535]

2013/10/27 11:16:51 -- [DOS][Block][tcp_flag, scanner=fin_wo_ack][192.168.0.24:51865->17.172.208.43:443][TCP][HLen=20, TLen=52, Flag=F, Seq=1654792132, Ack=0, Win=65535]

2013/10/27 11:16:51 -- [DOS][Block][tcp_flag, scanner=fin_wo_ack][192.168.0.24:51866->17.172.208.43:443][TCP][HLen=20, TLen=52, Flag=F, Seq=4063774636, Ack=0, Win=65535]

2013/10/27 11:16:51 -- [DOS][Block][tcp_flag, scanner=fin_wo_ack][192.168.0.24:51867->17.172.208.43:443][TCP][HLen=20, TLen=52, Flag=F, Seq=3325480430, Ack=0, Win=65535]

2013/10/27 11:16:51 -- [DOS][Block][tcp_flag, scanner=fin_wo_ack][192.168.0.24:51868->17.172.208.43:443][TCP][HLen=20, TLen=52, Flag=F, Seq=1299003110, Ack=0, Win=65535]

iMac, OS X Mavericks (10.9)

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