The nodes can ping each other on all networks. I have double checked the Virtual IP and Auxiliary connections on both servers, I don't see any problem.

Primary node Network settings:
Interface 1: eth0 IP:192.168.3.207/255.255.255.0 (replication network)
Interface 2: eth1 IP:192.168.1.207/255.255.255.0 (management network)
Interface 3: eth2 IP:192.168.2.207/255.255.255.0 (Storage network)


Secondary node Network settings:
Interface 1: eth0 IP:192.168.3.208/255.255.255.0
Interface 2: eth1 IP:192.168.1.208/255.255.255.0
Interface 3: eth2 IP:192.168.2.208/255.255.255.0

Virtual IP Settings:
IP address: 192.168.100.100
Netmask: 255.255.255.0
Broadcast: 192.168.100.255

Auxiliary connection:
Primary node: 192.168.2.208
Secondary node: 192.168.2.207