RackBank's FAQs

Large file transfer gives error: Corrupted MAC on input

Symptom

When you transfer a large file by HTTP it will disconnect and give you this error:

Disconnecting: Corrupted MAC on input.

This can also happen on SSH, FTP or other protocols as this is a bug with the kernel driver for the network.

Solution

Turn off "offload check summing" with the following command:

ethtool -K eth0 rx off tx off

Depending on the Ethernet driver in use this may not work as some drivers do not support turning off this feature.

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