Ensure that you have met the following prerequisites before configuring Hybrid Linked Mode.
The following prerequisites are common to both linking from the vCenter Cloud Gateway and from the cloud SDDC.
- Configure a connection between your on-premises data center and the SDDC. Depending on the service providing your SDDC, you might be able to use Direct Connect, a VPN, or both. See the networking documentation for your service for details.
- Regardless of the type of connection you choose, the vCenter FQDN must resolve to a private IP address. This is not the default configuration. See Set vCenter Server FQDN Resolution Address for more information.
- Ensure that your on-premises data center and your cloud SDDC are synchronized to an NTP service or other authoritative time source. Hybrid Linked Mode can tolerate a time skew of up to ten minutes between the on-premises data center and the cloud SDDC.
- The maximum latency between your cloud SDDC and on-premises data center cannot exceed 100 msec roundtrip.
- Decide which of your on-premises users will have Cloud Administrator permissions. Add these users to a group within your identity source. Ensure that this group has access to your on-premises environment.
Prerequisites for Linking with vCenter Cloud Gateway
The following prerequisites apply when linking with the vCenter Cloud Gateway.
- Install the vCenter Cloud Gateway. See Installing and Configuring the vCenter Cloud Gateway.
- Your on-premises environment must be vSphere 6.5 patch d or later.
- To ensure that the vCenter Cloud Gateway and your vCenter Server instances can reach each other over your network, verify that the following firewall ports are open.
Source Destination Port Purpose User's web browser vCenter Cloud Gateway 5480 Gathering support bundle vCenter Cloud Gateway On-premises vCenter Server 7444 Access to VMware Single Sign-On vCenter Cloud Gateway On-premises vCenter Server 443 Hybrid Linked Mode vCenter Cloud Gateway On-premises Platform Services Controller 443, 389 Hybrid Linked Mode vCenter Cloud Gateway Cloud SDDC vCenter Server 443 Hybrid Linked Mode vCenter Cloud Gateway Cloud ESXi host 902 Virtual Machine Console vCenter Cloud Gateway On-premises Active Directory server (ports dependent on your usage) 389, 636, 3268, 3269 Identity source vCenter Cloud Gateway https://vcgw-updates.vmware.com/ 443 Hybrid Linked Mode Linking, Cloud Gateway Auto-update
The following figure shows the ports required to be open for linking with the vCenter Cloud Gateway.
Prerequisites for Linking from the Cloud SDDC
The following prerequisites apply when linking from the cloud SDDC.
- Your on-premises vCenter Server system is running one of the following:
- vSphere 6.0 Update 3 patch c and later.
- vSphere 6.5 patch d and later.
- Ensure that you have the login credentials for your on-premises vSphere SSO domain.
- Ensure that you have login credentials for a user who has a minimum of read-only access to the Base DN for users and groups in your on-premises environment. This is used when adding an identity source.
- Ensure that an on-premises DNS server is configured for your management gateway so that it can resolve the FQDN for the identity source and on-premises systems.
- Ensure that your on-premises gateway or firewall allows access to the necessary ports from your SDDC for the following services.
Source Destination Ports Purpose Cloud SDDC On-premises vCenter Server 443 Hybrid Linked Mode Cloud SDDC On-premises Platform Services Controller 389, 443 Hybrid Linked Mode Cloud SDDC On-premises Active Directory server (ports dependent on your usage) 389, 636, 3268, 3269 Identity Source Cloud SDDC On-premises DNS 53 Resolving FQDN of on-premises vCenter Server and Active Directory Server Cloud SDDC On-premises ESXi host 902 Virtual Machine Console
The following figure shows the ports that are required to be open for linking from the cloud SDDC.
- If you are linking to an on-premises vCenter Server instance that is connected to other on-premises vCenter Server instances with Enhanced Linked Mode, your cloud SDDC must have network connectivity to all of the on-premises vCenter Server instances, not just the one that you are directly linking to.
- Run the Connectivity Validator tests to check that network connectivity is correctly established for Hybrid Linked Mode. See Validate Network Connectivity for Hybrid Linked Mode.