Hey all, I keep seeing the following in my logs:
Jan 23 20:16:22 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.161.150!
Jan 23 20:16:22 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.161.150!
Jan 27 20:54:54 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.132.132!
Jan 27 20:54:59 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.132.132!
Jan 27 20:54:54 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.132.132!
Jan 27 20:54:59 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.132.132!
Jan 30 23:29:04 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.169.247!
Jan 30 23:29:06 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.169.247!
Jan 30 23:29:04 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.169.247!
Jan 30 23:29:06 wolverine kernel: IP_MASQ:reverse ICMP: failed checksum from
xxx.yy.169.247!
Is this just a misconfiguration at the remote end? All three addresses
originate from the same network. Or is it some kind of attack?
Thanks!
________________________________________
Adrian Chung - adrian@enfusion-group.com
http://www.uoguelph.ca/~chungm
________________________________________
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