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# Howto PFSYNC sous OpenBSD

<http://www.openbsd.org/faq/pf/carp.html#pfsyncintro>

## Stats

~~~
# netstat -sp pfsync
pfsync:
        89586993 packets received (IPv4)
        0 packets received (IPv6)
                0 packets discarded for bad interface
                0 packets discarded for bad ttl
                0 packets shorter than header
                0 packets discarded for bad version
                0 packets discarded for bad HMAC
                0 packets discarded for bad action
                0 packets discarded for short packet
                1 state discarded for bad values
                116211 stale states
                36304837 failed state lookup/inserts
        5465049553 packets sent (IPv4)
        0 packets sent (IPv6)
                0 send failed due to mbuf memory error
                712946959 send error
~~~