Hi all,
I have an ESXI host with one physical NIC which is attached a a vSwitch with 4 port groups, 1 which is native the other 3 are VLAN tagged.
One guest has 4 NICs configured fom the port groups above (minus 1 ) and another from a 2nd vSwitch (no phtsical NIC). It is currently working as expected. However, when I add an additional NIC from a VLAN tagged port group to the guest, it is as if the VLAN associated with those port groups are swapped or random.
The indication of this is:
- The DHCP issued address for one NIC is from a network connected to another NIC
- A series of ARP errors on the guest
If I remove the added NIC, the issue is rolled back.
Hi
Seems like routing issue..check the route and if needed add a static route!!
How so? Regardless of which port group I assign to the additional NIC, the issue occurs.
It would be simpler to follow if you show your vSwitch topology and port configuration on the physical switch.
This is the vSwitch topology. It has a physical NIC and VLANs 2,3 and 0 are connected to VMs.
The issue occurs when I add the Guest Network to a VM:
- A VM issues a DHCP request on the External Network and receives a response from a DHCP server on the Internal Network
- If I remove the Guest Network from the VM, the issue reverts
Hello,
Kindly clarify the network IP addresses at vmnic level, do you configure a two gateways (routers) ?
Also check that you have defined correct IP helper on the switch, otherwise you might just get the default range assigned from the DHCP server
I'm not sure what this has to do with layer 3 given it currently works and the issue only occurs when the additional NIC is added to the VM.