Best Practices for Network Configuration

• If multiple network interfaces are connected in the production environment, ensure that each network adapter is connected to different sub network.
• If Linux node is not available in the production environment to protect, we recommend to stop the VM Linux-BackupSvr, and DHCP Server service on the Appliance.
• For more information, refer How to Disable DHCP Server.
• When both the Appliance and the Agent node are online on the same sub network, a connection problem occurs between the Appliance and an Agent node if there are multiple network interfaces connected to the same sub network in the Appliance.
• Symptom
• If both the Appliance and Agent nodes are online on the same sub network, the following symptoms may occur:
• On the Arcserve UDP Console, when you deploy the plan to Agent node, the following error message is displayed:
• 
• Backup job of the Agent node fails as below:
• 
• Ping the Agent node from the Appliance and verify whether the Agent node is connected or not as follows:
• 
• Ping Appliance host name from the Agent node and the Appliance is NOT connected as follows:
• 

Solution

• To resolve the connection problem between the Appliance and Agent node, perform one of the following steps:
• If Linux node is not available in the production environment, stop the DHCP Server service service on the Appliance and verify whether the problem is resolved or not.
• For more information, refer How to Disable DHCP Server.
• On the Appliance and Agent node, follow these steps:
• Steps to be followed on Appliance:
  1. Run ipconfig /all from DOS Command Prompt to get the available IPv4 address on the Appliance:
  2. Run Route Print from DOS Command Prompt to get the IPv4 Route Table, record the order list for all the available IPv4 address on the Appliance as below:
  3. 
• Steps to be followed on Agent node:
1. From the DOS Command Prompt, try to ping each available IPv4 address of Appliance one by one according to the order above to get the first IPv4 of the Appliance connected on the Agent node as follows:
2. 
2. Modify the file C:\Windows\System32\drivers\etc\hosts to add a record for the pair the_IPv4_got_above Appliance_hostname and save the file.