If you experience issue with Host Preparation on your LAN NSX enviroment, it could be related with SSL certificate and dificulties to get
https://NSXMGR/bin/vdn/vibs-6.2.5/6.5-4463934/vxlan.zip
https://NSXMGR/bin/vdn/vibs-6.3.1/5.5-5114250/vxlan.zip
https://NSXMGR/bin/vdn/vibs-6.3.1/6.5-5124743/vxlan.zip
Solution:
1. Download vxlan.zip your PC
2. pscp vxlan.zip root@ESXIIP:tmp
3. on ESXi: esxcli software vib install -d /path/to/vxlan.zip
NOTE: if error appear: VIB VMware_bootbank_esx-vxlan_6.5.0-0.0.4463934 requires nsx-api <= 1, but the requirement cannot be satisfied within the ImageProfile.
please force the installation: esxcli software vib install -d /path/to/vxlan.zip --force
4. Check that VIB installed:
vmware -vl; esxcfg-vmknic -l | grep vxlan ; esxcli software vib list | grep esx-v
5. Back to NSX Manager and repair Host preparation.