keyset-192.in-addr.arpa.

openswan的比较标准的版本 2.4和2.6核都可编译

$ORIGIN .
192.in-addr.arpa	604800	IN KEY	256 3 1 (
					AQOm6OJ4A7zuifG9d84e5V8ZvaTa8YADXBF4
					2B+ls+k7npSUqVsSiNqkyqBHIfCniGZAA1gD
					81PeWffN00J+sW2F
					) ; key id = 45421