ESXi 5.5 - Virtual Machine fails to PING the gateway and/or other hosts

Hello ladies and gentlemen

I have installed HP DL380p Gen8 1 with vmware ESXi 5.5.

I have 1 with 2 vmnic Virtual Machine port group - vmnic0 and vmnic1 connect 2 virtual machines. If I have the TEAM network cards, a VM (selected) randomly is able to PING to the gateway while the 2nd VM is not. ESXTOP in this case, don't watch not the physical NETWORK card that each virtual computer connects to but says 'all' to the title of the team-TEDDY.

If I break the team and you use only vmnic0 - none of the VMs connet to the gateway. If I create the vSwitch with only vmnic1 as usable NIC (vminc0 - unused) - once again only 1 VM (randomly chosen) is able to PING the gateway while the other is not (and two VMS use vmnic1 as the uplink to the vNIC).

The physical ESX host connects to a Catalyst Cisco 2950 switch.

Can you please advise where can I go from here? It could be a problem with the VLAN when it comes to vmnic0 (since none of the virtual computers are able to connect through this vmnic), but what is happening with vmnic1 (a virtual machine connects randomly while the other doesnot)...?

I tried several forums without success.

Managed to solve this one-

  1. The uplink switch (Catalyst 2950) was Port security enabled on all THE Ports.
  2. I had to disable the port on a given set of ports security (to which are connected the physical network adapters).

Everything seems to work fine now.

Bravo to all the entries!

Tags: VMware

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