FreeBSD turning off offloading


How can I turn off the following in FreeBSD?

  • tx checksum offloading
  • rx checksum offloading
  • tcp segment offloading
  • large segment offloading

Best Answer

  • It's a BSD system, so it's all documented in the ifconfig manual page ( Basically, it's "ifconfig em0 -rxcsum -txcsum -tso -lro" to disable, and the same thing without dashes ("-") to enable. Substitute "em0" with your interface name; do "ifconfig" without arguments to show available interfaces.

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