Firewall

ID #1089

What does 'kernel: MASQ: failed TCP/UDP checksum from x.x.x.x' mean?

This is due to a damaged packet arriving at your machine. This packet didn't quite make it intact across the Internet / your network and the router sees this and tells you. There is nothing you can really do about it and it doesn't cause any problems. It is not a sign that someone is hacking your computer (allthough it can be).

If you frequently gets lots of these messages, it may mean that you have some bad network cabling or a bad Internet connection.

Last update: 2004-11-03 23:04
Author: Dingetje
Revision: 1.0

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