RDS的备份不能下载

白名单里ECS的内外网IP都加进去了，试了内外网地址都是403
[root@iZ2318ey39rZ web]# wget http://rdsbak-hzf.oss-cn-hangzhou-f-internal.aliyuncs.com/xxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxx.tar.gz?xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[1] 13614
[2] 13615
[root@XXXXXXXX web]# --2016-04-30 17:39:40--  http://rdsbak-hzf.oss-cn-hangzhou-f-internal.aliyuncs.com/xxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxx.tar.gz?xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Resolving rdsbak-hzf.oss-cn-hangzhou-f-internal.aliyuncs.com... 10.135.252.98
Connecting to rdsbak-hzf.oss-cn-hangzhou-f-internal.aliyuncs.com|10.135.252.98|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2016-04-30 17:39:40 ERROR 403: Forbidden.