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Firewall connections causing channels to drop in VMware vCenter Heartbeat
Symptoms
The VMware Channel cannot connect or connects and disconnects continuously.
Purpose
In both a LAN or WAN deployment of VMware vCenter Server Heartbeat, the channel may be connected via one or more Internet firewalls. Since firewalls are intended to block unauthorized network traffic, it is important to ensure that any firewalls along the route of the channel are configured to allow channel traffic.
Resolution
In a WAN deployment, port 57348 (or any other port configured for the VMware Channel) is closed on one or more firewalls on the route between the channel NIC on the Primary server and its counterpart on the Secondary server.
Open port 57348 (and any other port configured for the VMware Channel) on all firewalls on the route between the channel NIC on the Primary server and its counterpart on the Secondary server.
