Mailinglist Archive: opensuse-security (465 mails)

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[suse-security] Re: ICMP
  • From: johannes.marloth@xxxxxxxxxxx (Johannes Marloth)
  • Date: Sat, 29 Dec 2001 08:30:31 +0100
  • Message-id: <PM-CH.20011229083031.7BCBF.2.1D@xxxxxxxxxxxxxxxxxx>
Hi JohnvD and all other,

> kernel: IP_MASQ:reverse ICMP: failed checksum from 195.64.6.130!

I'd like to know if 195.64.6.130 is your IP? Surely?!

> Dec 28 00:10:33 zwiffelzwaffel kernel: IP_MASQ:reverse ICMP: failed
checksum from 213.7.32.37!

It seems that your masquerading fails for 213.7.32.37. Another point
can be the masquerading and/or forwarding set (misconfigured?). Maybe
also an attack is possible....
But if I read:

> Dec 28 12:17:51 zwiffelzwaffel kernel: eth1: Setting Rx mode to 1
addresses.

Two years ago (something around this :) i got the same message and
after five days the nic 'died'....

Perhaps try to deactivate all unnecessary masquerading modules &
rules. If you have another netcard, maybe the replacement works...

Hope you get it solved,
Johannes


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