我已经为此工作了一个多星期，无法找到解决方案。渴望获得帮助
-bash-4.2 $ / sbin / ifconfig
docker0：
flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255
inet6 fe80::42:51ff:fe23:53d7 prefixlen 64 scopeid 0x20<link>
ether 02:42:51:23:53:d7 txqueuelen 0 (Ethernet)
RX packets 873 bytes 218751 (213.6 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 532 bytes 86121 (84.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth0：
flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000
inet 10.40.89.167 netmask 255.255.248.0 broadcast 10.40.95.255
inet6 2606:b400:c13:e03:f816:3eff:fe48:f5d prefixlen 64 scopeid 0x0<global>
inet6 fe80::f816:3eff:fe48:f5d prefixlen 64 scopeid 0x20<link>
ether fa:16:3e:48:0f:5d txqueuelen 1000 (Ethernet)
RX packets 156003879 bytes 37924713148 (35.3 GiB)
RX errors 0 dropped 17 overruns 0 frame 0
TX packets 8377241 bytes 1139655340 (1.0 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo：
flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 128401 bytes 29691788 (28.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 128401 bytes 29691788 (28.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
veth0313598：
flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::88f8:2fff:fe15:e7c7 prefixlen 64 scopeid 0x20<link>
ether 8a:f8:2f:15:e7:c7 txqueuelen 0 (Ethernet)
RX packets 365 bytes 190333 (185.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 884 bytes 191667 (187.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
docker0：
flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255
ether 02:42:e6:0d:4c:a6 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth0：
flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000
inet 10.40.67.187 netmask 255.255.248.0 broadcast 10.40.71.255
inet6 fe80::f816:3eff:fe0b:cdb7 prefixlen 64 scopeid 0x20<link>
inet6 2606:b400:c13:e00:f816:3eff:fe0b:cdb7 prefixlen 64 scopeid 0x0<global>
ether fa:16:3e:0b:cd:b7 txqueuelen 1000 (Ethernet)
RX packets 206797690 bytes 42338336490 (39.4 GiB)
RX errors 0 dropped 6 overruns 0 frame 0
TX packets 6772819 bytes 1007703663 (961.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo：
flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 133640 bytes 30800694 (29.3 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 133640 bytes 30800694 (29.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
问题说明：
[oracle @ b1d3ef32e104〜] $ ping -c 2 10.40.89.167
PING 10.40.89.167 (10.40.89.167) 56(84) bytes of data.
64 bytes from 10.40.89.167: icmp_seq=1 ttl=64 time=0.081 ms
64 bytes from 10.40.89.167: icmp_seq=2 ttl=64 time=0.090 ms
--- 10.40.89.167 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1043ms
rtt min/avg/max/mdev = 0.081/0.085/0.090/0.010 ms
-bash-4.2 $ ping -c 2 10.40.67.187
PING 10.40.67.187 (10.40.67.187) 56(84) bytes of data.
64 bytes from 10.40.67.187: icmp_seq=1 ttl=62 time=0.320 ms
64 bytes from 10.40.67.187: icmp_seq=2 ttl=62 time=0.478 ms
--- 10.40.67.187 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1005ms
rtt min/avg/max/mdev = 0.320/0.399/0.478/0.079 ms
[oracle @ b1d3ef32e104〜] $ ping -c 2 10.40.67.187
PING 10.40.67.187 (10.40.67.187) 56(84) bytes of data.
^C
--- 10.40.67.187 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1023ms
我正在使用默认的docker bridge网络。默认情况下，firewalld在两台主机上均运行。 host1拥有4521端口开放用于连接数据库