Docker in my macbook network problem

When i use the Docker in my macbook i have this problem as following:
docker exec -it 70bc11ab2962 bash
[root@70bc11ab2962 /]# ping 15.15.15.5
PING 15.15.15.5 (15.15.15.5) 56(84) bytes of data.
64 bytes from 15.15.15.5: icmp_seq=1 ttl=37 time=0.206 ms
64 bytes from 15.15.15.5: icmp_seq=2 ttl=37 time=0.442 ms
^C
— 15.15.15.5 ping statistics —
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 0.206/0.324/0.442/0.118 ms
[root@70bc11ab2962 /]# ping 10.10.10.1
PING 10.10.10.1 (10.10.10.1) 56(84) bytes of data.
64 bytes from 10.10.10.1: icmp_seq=1 ttl=37 time=0.321 ms
64 bytes from 10.10.10.1: icmp_seq=2 ttl=37 time=2.65 ms
^C
— 10.10.10.1 ping statistics —
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.321/1.488/2.656/1.168 ms

In the container i can ping any ip,it will be pass.
But my host can not ping that ip pass as following:
zjj@Fight:~$ ping 10.10.10.1
PING 10.10.10.1 (10.10.10.1): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4

I think this is a bug. Everybody can try it in your macbook.