keyset-4.0.192.in-addr.arpa.

openswan的比较标准的版本 2.4和2.6核都可编译

$ORIGIN .
4.0.192.in-addr.arpa	604800	IN KEY	256 3 1 (
					AQPWDdqcXLnCAQuQLWHmhwimc6HLw3JB5rws
					PPLRJcsabk1i2oPWPD4mEoEQYoH8xr5RVB+M
					DM072SwkdmuwIgcV
					) ; key id = 8711