*Apr 11 15:56:49: %7: L2TP: received 112 bytes data from UDP

*Apr 11 15:56:49: %7: L2TP: I SCCRQ from pdsn ip 115.168.101.149 sport 1701 rtnlid 146

*Apr 11 15:56:49: %7: L2TP: ctrl pak can't find tunnel

从debug信息来看,是由于本地无法找到相应匹配的tunnel,一般是由于对端标识与本端指定的不一致。

如从以上debug信息中可以看出对端标识为pdsn,需要确认下本地配置的terminate-from hostname是否为pdsn。