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This configuration applies to systems with a file-based network configuration where the NetworkManager is either not active, or where network interfaces should be excluded from NetworkManager control (e.g., to be managed by the Charon Manager). The NetworkManager is disabled by default in older Charon-SSP marketplace images that are based on Centos 7.

Please note:

• The sample configuration assumes a CentOS 7 system and that the interface is configured outside the control of the NetworkManager.
• Should the NetworkManager be active, the plugins ifcfg-rh and ibft must be enabled in section main of the NetworkManager configuration file /etc/NetworkManager/NetworkManager.conf.
• After the initial creation of the ifcfg-file, the interface can be managed by the Charon-SSP Manager.

To make the second interface usable for the Charon guest system, perform the following steps:

1. Add a second interface to your instance as described in the cloud-specific Getting Started guide and your cloud provider's documentation.
   
   
2. Log into the instance and become the root user (use: sudo -i)
   
   
3. Identify the names of the two Ethernet interfaces:
   # ip link show
   
   
4. Create an interface configuration file for the second interface (the file for the first one should exist). Example (use correct interface name for your configuration):
   # cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth1


5. Edit this file to match the characteristics of eth1 (use correct interface name for your configuration). The private IP address used for this interface will be assigned to the Solaris guest. Therefore, configure the Linux Interface without IP address, similar to the example below.
   
   Please note:
   On some cloud platforms, the automatic cloud-specific configuration prevents the entries in the ifcfg-file to take effect (for example on GCP). Please refer to your cloud-provider's documentation and the Network Management section in the Getting Started Guide of your version for additional information.
   
   BOOTPROTO=none
DEVICE=eth1
NAME=eth1
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
NM_CONTROLLED=no        


6. Restart the network:
   # systemctl restart network
Please note: Should there be an error when executing this command, kill the DHCP client process and retry the command.