TCPv4 and UDP bad checksums

Fred Silva (fred@transnet.com.br)
Thu, 24 Dec 1998 19:06:11 -0200

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> Dec 24 16:42:13 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=41/41/61
> Dec 24 16:42:14 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=20/20/40
> Dec 24 16:42:15 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=20/20/40
> Dec 24 16:49:29 pirambu kernel: UDP: bad checksum. From
200.223.63.199:27001 to 200.241.50.37:27500 ulen 45
> Dec 24 16:50:42 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=20/20/40
> Dec 24 16:51:19 pirambu last message repeated 6 times
> Dec 24 16:51:19 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=20/20/40
> Dec 24 16:51:19 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=43/43/63
> Dec 24 16:51:20 pirambu kernel: TCPv4 bad checksum from
200.239.12.19:0490 to 200.241.50.37:1a0b, len=20/20/40
> Dec 24 16:51:22 pirambu kernel: UDP: bad checksum. From
200.223.63.199:27001 to 200.241.50.37:27500 ulen 33
> Dec 24 16:51:23 pirambu kernel: UDP: bad checksum. From
200.223.63.199:27001 to 200.241.50.37:27500 ulen 33
> Dec 24 16:55:37 pirambu kernel: UDP: short packet: 27500/33

Messages repeated many times... The machine is a irc server, with Slackware
3.6, Kernel 2.1.131ac13 and gcc version 2.7.2.3...

Até mais...
[]'s Fred Silva

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