VMs which set up newly can't ping the host

[George_Yu]

a few days ago, vSphere VMs worked well on the nested host A which was vSphere, too. Then, setup a vDS and put all hosts into it. It caused problem that all the hosts was not able to ping each other. But, other VMs( I mean windows OS on them) still can ping its host. Therefore, moved hosts from the vDS and deleted the vDS, the problem was here. And, set up a few new VMs which operation system are vSphere, too on the nested host A. They can only ping itself but can't ping the nested host A, too. then, deleted the datacentre and set up a new one. the probel still exists here.

The problem should be coming after vDS, how can I fix it?

the configuration for these new VMs are inpicture.

[George_Yu]

here is the configuration of the host A.

By the way, the VM vSphere(10.1.1.213) has 2 vmnics are each in VM Network and VMs

[athlon_crazy · Accepted solution]

here my thought, you forgot to enable back promicious (security) on vSwitch0 & 1 after migrated both from vNDS

http://www.no-x.org

[George_Yu]

I got it. Forgot to open Promiscuous Mode