Re: TCP checksum and device driver eri0

>During a snoop session on a 280R with solaris 9 and network interface

The eri0 interface and some other Solaris interfaces employ hardware checksumming; as a result, packets with correct checksums never exist in the kernel, they're generated in the hardware.

>The same packet snooped on the network has the correct checksum value.

No hardware checksum for hme.

>With this last result I believe that the responsible is the eri0 driver.

You can disable hardware checksums:

        set ip:dohwcksum = 0

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in /etc/system

Casper Received on Wed Jul 2 11:21:00 2003