Ping flood attack every 5 seconds

Posted by Mario on Super User See other posts from Super User or by Mario
Published on 2012-11-19T10:21:48Z Indexed on 2012/11/19 11:13 UTC
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router

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ping

My router's log, which is a D-Link DIR-600, shows 40 pages (and updating) of entries like:

Nov 19 11:17:08     PING-FLOODING flooding attack from WAN (ip:85.250.85.11) detected.
Nov 19 11:17:02     PING-FLOODING flooding attack from WAN (ip:85.131.129.176) detected.
Nov 19 11:16:57     PING-FLOODING flooding attack from WAN (ip:122.107.244.152) detected.
Nov 19 11:16:50     PING-FLOODING flooding attack from WAN (ip:88.103.8.96) detected.
Nov 19 11:16:46     PING-FLOODING flooding attack from WAN (ip:212.142.91.106) detected.
Nov 19 11:16:38     PING-FLOODING flooding attack from WAN (ip:184.170.6.63) detected.
Nov 19 11:16:34     PING-FLOODING flooding attack from WAN (ip:1.239.96.192) detected.
Nov 19 11:16:26     PING-FLOODING flooding attack from WAN (ip:120.29.76.184) detected.
Nov 19 11:16:20     PING-FLOODING flooding attack from WAN (ip:110.77.137.228) detected.
Nov 19 11:16:15     PING-FLOODING flooding attack from WAN (ip:201.141.51.210) detected.

What should I do? ICMP is disabled (router does not respond to WAN pings).

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