On Sun, Jul 28, 2002 at 10:49:44PM -0700, mike schiffman wrote:

> pass out proto tcp from any to any         flags S/SA keep state

Try

  pass out from any to any allow-opts

instead. pf, by default, blocks packets with IP options. If you want to
pass them, use the 'allow-opts' rule parameter.

Also, if you pass TCP packets statefully (with 'keep state'), pf will
use the TCP flags to track the connection, and automatically drop
certain combinations or sequences. If you don't want that, don't use
'keep state', but pass those packets statelessly.

Daniel

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