Can anyone explain these messages?

Aaron Tiensivu (tiensivu@pilot.msu.edu)
Sun, 3 Nov 1996 19:42:03 -0500 (EST)

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These messages pop up in my log files from time to time and make me wonder if
someone is trying to do something 'bad' either with or from my machine.

Nov 2 20:02:41 lucretia kernel: ICMP: failed checksum from 207.78.13.23!
Nov 2 20:51:13 lucretia kernel: ICMP: failed checksum from 207.78.13.23!
Nov 3 02:33:06 lucretia kernel: ICMP redirect from 164.67.20.18
Nov 3 02:33:06 lucretia last message repeated 7 times
Nov 3 09:59:28 lucretia kernel: ICMP: failed checksum from 206.84.2.1!
Nov 3 09:59:36 lucretia last message repeated 5 times
Nov 3 10:00:02 lucretia kernel: ICMP: failed checksum from 206.84.2.59!
Nov 3 10:00:37 lucretia kernel: ICMP: failed checksum from 206.84.2.59!
Nov 3 10:00:52 lucretia kernel: ICMP: failed checksum from 206.84.2.59!
Nov 3 10:03:02 lucretia kernel: ICMP: failed checksum from 206.84.2.59!
Nov 3 10:03:49 lucretia last message repeated 4 times
Nov 3 10:04:18 lucretia kernel: ICMP: failed checksum from 206.84.2.59!
Nov 3 10:06:30 lucretia kernel: ICMP: failed checksum from 207.78.11.34!
Nov 3 10:06:33 lucretia kernel: ICMP: failed checksum from 207.78.11.34!

The ones that make me wonder the most are the ICMP redirects..
I'm not positive this is kernel related, but it is coming from the kernel and
seems to be worth noting, so, I'm just curious.

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