Hi dude,
I've noticed our users are being blocked by a rule which prevents
CONNECTs to IP addresses instead of FQDN.
What puzzles me is WHY skype is trying to connect to IPs even after
connecting to FQDNs.. ? Have anyone noticed this? Any workaround apart
from whitelisting Microsoft IPs...... ???
LOG:
1490189501.442 879 10.32.3.102 TCP_TUNNEL/200 8797 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.96 -
1490189502.241 740 10.32.3.102 TCP_TUNNEL/200 6160 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.66 -
1490189503.017 741 10.32.3.102 TCP_TUNNEL/200 13808 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.66 -
1490189510.193 729 10.32.3.102 TCP_TUNNEL/200 8784 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.66 -
1490189511.068 779 10.32.3.102 TCP_TUNNEL/200 6160 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.66 -
1490189512.162 763 10.32.3.102 TCP_TUNNEL/200 7376 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.66 -
1490189512.216 816 10.32.3.102 TCP_TUNNEL/200 7376 CONNECT
login.live.com:443 - HIER_DIRECT/131.253.61.68 -
1490189517.077 1 10.32.3.102 NONE/503 0 CONNECT 157.55.130.146:443
- HIER_NONE/- -
1490189525.321 1 10.32.3.102 NONE/503 0 CONNECT 64.4.23.160:443 -
HIER_NONE/- -
1490189526.333 1 10.32.3.102 NONE/503 0 CONNECT 111.221.77.165:443
- HIER_NONE/- -
1490189527.345 1 10.32.3.102 NONE/503 0 CONNECT 157.55.130.144:443
- HIER_NONE/- -
1490189528.354 1 10.32.3.102 NONE/503 0 CONNECT 111.221.77.149:443
- HIER_NONE/- -
1490189529.368 1 10.32.3.102 NONE/503 0 CONNECT 157.55.235.164:443
- HIER_NONE/- -
1490189531.375 1 10.32.3.102 NONE/503 0 CONNECT 157.56.52.20:443 -
HIER_NONE/- -
1490189532.385 1 10.32.3.102 NONE/503 0 CONNECT 65.55.223.31:443 -
HIER_NONE/- -
1490189533.393 1 10.32.3.102 NONE/503 0 CONNECT 157.56.52.21:443 -
HIER_NONE/- -
--
Atenciosamente / Best Regards,
Heiler Bemerguy
Network Manager - CINBESA
55 91 98151-4894/3184-1751
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