I have often got to interact with customers who had an issue getting the Nsx Vib installed on their ESXi host. Most of the time, it is a tedious configuration issue or a step that they have forgotten. I have hit a similar issue today in my lab with me missing a simple step and wanted to share the error and the fix with others just in a hope it helps others recover from the same error quicker.

I was getting the following error every time I tried to install the NSX 6.4.5 VIB on my ESX 6.7U2 host, and similar error as well when I try to run the resolve button. The error stated “Unable to access agent VIB module at https://192.168.1.211/bin/vdn/vibs-6.4.5/6.7-13168956/vxlan.zip (_NSX_87_VTRES01_VMware Network Fabric). A screen shot of the errir is below.

There was a more detailed error on my NSX screen, which unfortunately I seem to have lost the screenshot for, but it stated something like below:

vtesxi01.vt.com: Unable to access agent offline bundle at https://192.168.1.211/bin/vdn/vibs-6.4.5/6.7-13168956/vxlan.zip.
Cause :
1.50

4
Failed to download metadata.
https://vtvc01.vt.com:443/eam/vib?id=ecf4a884-c9f5-406c-b57e-75a6613a3651
None
(‘https://vtvc01.vt.com:443/eam/vib?id=ecf4a884-c9f5-406c-b57e-75a6613a3651’, ‘/tmp/tmpjnw369p9’, ‘[Errno 14] curl#6 – “Couldn\’t resolve host \’vtvc01.vt.com\'”‘)

As I have seen this one before, I was immediately able to spot that the fix is more than likely I have forgotten to setup Forward or Reverse DNS record or configuration for one of my setup component being ESXi, vCenter or NSX.… Read More