About NIC1 (eth0) port usage on the appliance nodes
By default, NIC1 (eth0) is set to IP address 192.168.229.233. This private network address is reserved to provide a direct connection from a laptop to perform the initial configuration. NIC1 (eth0) is typically not connected to your network environment.
If after initial configuration you want to repurpose NIC1 (eth0), you can change the IP address using the Network > IPv4 or Network > IPv6 commands.
Note:
If another appliance network interface is set to the 192.168.x.x IP address range, you must change the default IP address of NIC1 (eth0) to a different IP address range.
See Configuring network address settings on the appliance nodes.