운영하고 있는 서버에대한 해킹시도 관련 메일을 받았는데 무슨 뜻 인가요...

******

This report from RealConnect,Inc. is advisory -- THERE IS NO NEED TO REPLY.
However, if you do not take appropriate measures promptly, your network(s)
will be blacklisted by RealConnect, Inc.

Replies to this email are assumed to be autoresponses.

If you believe you have received this complaint in error, please email:
incident.inquiry@realconnect.com

******

SUSPECT IP: 61.111.8.251 (61-111-8-251.kidc.net)

This host, apparently from your network, probed port udp/5060 (SIP)
on the IPs listed below, within the past 24 hours.

Since the scan targeted random IPs on our networks, it should be viewed
as an overtly hostile action.

All timestamps are EDT.

2010-09-04 17:52:39: access denied udp 61.111.8.251(5064) ->
66.63.42.24(5060)
2010-09-04 17:50:57: access denied udp 61.111.8.251(5064) ->
66.63.34.9(5060)
2010-09-04 17:46:34: access denied udp 61.111.8.251(5064) ->
66.63.42.110(5060)
2010-09-04 17:45:42: access denied udp 61.111.8.251(5064) ->
66.63.11.218(5060)
2010-09-04 17:45:17: access denied udp 61.111.8.251(5064) ->
66.63.11.136(5060)
2010-09-04 17:44:57: access denied udp 61.111.8.251(5064) ->
66.63.9.116(5060)
2010-09-04 17:41:00: access denied udp 61.111.8.251(5064) ->
66.63.11.213(5060)
2010-09-04 17:38:42: access denied udp 61.111.8.251(5064) ->
66.63.46.92(5060)
2010-09-04 17:34:22: access denied udp 61.111.8.251(5064) ->
66.63.42.57(5060)
2010-09-04 17:21:25: access denied udp 61.111.8.251(5064) ->
66.63.58.50(5060)
2010-09-04 16:47:53: access denied udp 61.111.8.251(5064) ->
66.63.47.27(5060)
2010-09-04 16:37:33: access denied udp 61.111.8.251(5064) ->
66.63.9.31(5060)
2010-09-04 16:17:08: access denied udp 61.111.8.251(5064) ->
66.63.42.115(5060)
2010-09-04 16:03:42: access denied udp 61.111.8.251(5064) ->
66.63.34.205(5060)
2010-09-04 15:55:08: access denied udp 61.111.8.251(5064) ->
66.63.63.22(5060)
2010-09-04 15:44:10: access denied udp 61.111.8.251(5064) ->
66.63.62.103(5060)
2010-09-04 15:36:31: access denied udp 61.111.8.251(5064) ->
66.63.47.22(5060)
2010-09-04 15:33:06: access denied udp 61.111.8.251(5064) ->
66.63.11.149(5060)
2010-09-04 15:28:33: access denied udp 61.111.8.251(5064) ->
66.63.42.0(5060)
2010-09-04 15:24:53: access denied udp 61.111.8.251(5064) ->
66.63.62.115(5060)
2010-09-04 15:20:06: access denied udp 61.111.8.251(5064) ->
66.63.10.98(5060)
2010-09-04 14:58:25: access denied udp 61.111.8.251(5064) ->
66.63.11.205(5060)
2010-09-04 14:54:09: access denied udp 61.111.8.251(5064) ->
66.63.47.247(5060)
2010-09-04 14:50:52: access denied udp 61.111.8.251(5064) ->
66.63.34.39(5060)
2010-09-04 14:50:31: access denied udp 61.111.8.251(5064) ->
66.63.56.131(5060)
2010-09-04 14:50:01: access denied udp 61.111.8.251(5064) ->
66.63.34.198(5060)
2010-09-04 14:44:46: access denied udp 61.111.8.251(5064) ->
66.63.56.104(5060)
2010-09-04 14:43:44: access denied udp 61.111.8.251(5064) ->
66.63.46.88(5060)
2010-09-04 14:34:48: access denied udp 61.111.8.251(5064) ->
66.63.33.131(5060)
2010-09-04 14:28:22: access denied udp 61.111.8.251(5064) ->
66.63.56.217(5060)
2010-09-04 14:26:15: access denied udp 61.111.8.251(5064) ->
66.63.58.59(5060)
2010-09-04 14:22:10: access denied udp 61.111.8.251(5064) ->
66.63.10.10(5060)
2010-09-04 14:21:27: access denied udp 61.111.8.251(5064) ->
66.63.32.197(5060)
2010-09-04 14:11:17: access denied udp 61.111.8.251(5064) ->
66.63.9.27(5060)
2010-09-04 14:09:20: access denied udp 61.111.8.251(5064) ->
66.63.58.39(5060)
2010-09-04 14:09:10: access denied udp 61.111.8.251(5064) ->
66.63.33.219(5060)
2010-09-04 14:07:00: access denied udp 61.111.8.251(5064) ->
66.63.33.110(5060)
2010-09-04 14:05:17: access denied udp 61.111.8.251(5064) ->
66.63.33.246(5060)
2010-09-04 14:01:01: access denied udp 61.111.8.251(5064) ->
66.63.63.11(5060)
2010-09-04 13:54:10: access denied udp 61.111.8.251(5064) ->
66.63.34.194(5060)
2010-09-04 13:50:07: access denied udp 61.111.8.251(5064) ->
66.63.42.14(5060)
2010-09-04 13:46:13: access denied udp 61.111.8.251(5064) ->
66.63.58.48(5060)
2010-09-04 13:43:02: access denied udp 61.111.8.251(5064) ->
66.63.63.9(5060)
2010-09-04 13:36:38: access denied udp 61.111.8.251(5064) ->
66.63.46.84(5060)
2010-09-04 13:35:23: access denied udp 61.111.8.251(5064) ->
66.63.11.135(5060)
2010-09-04 13:33:39: access denied udp 61.111.8.251(5064) ->
66.63.34.15(5060)
2010-09-04 13:31:21: access denied udp 61.111.8.251(5064) ->
66.63.42.47(5060)
2010-09-04 13:27:53: access denied udp 61.111.8.251(5064) ->
66.63.63.6(5060)
2010-09-04 13:24:56: access denied udp 61.111.8.251(5064) ->
66.63.11.198(5060)
2010-09-04 13:20:53: access denied udp 61.111.8.251(5064) ->
66.63.42.31(5060)