Make / model of this device, falcon04?
My only question is what the "O" flag is for (if anything), but looks like it's autoresolving an IP address to a
hostname. Ignoring the "O," looks like it's all return traffic from port 80 / HTTP to your PC on a high order port,
which is normal and expected.
2013/01/04 13:58:17.66 O tcp 74.125.137.120 p5-vjbrh5n742oqe-evtxaylq3ixe2ham-430548-i1-v6exp3-ds.metric.g 80 52.46.49.50 49212
Couldn't say about this one... there any previous occurrences? Does it reoccur, and how often?
Short of running a continuous netstat on all your PCs on your LAN or running some sort of packet sniffer, you got me.
My 00000010bits.
Regards