* Urs Thuermann: > How can a corrupted frame pass the TCP checksum check?
The TCP/IP checksums are extremely weak. If the corruption is due to defective SRAM or something like that, it's likely that it causes an error pattern which is 16-bit-aligned. And an even number of 16-bit-aligned bit flips is not detected by the TCP checksum. 8-( Actually, nobody should use TCP without application-level checksums for that reason. But of course, there is HTTP. -- Florian Weimer <[EMAIL PROTECTED]> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99 - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html