Network

Consider the following about network requirements:

• Veeam Agent must be able to establish a direct IP connection to the Veeam Backup & Replication server. Thus, Veeam Agent cannot work with Veeam Backup & Replication that is located behind the NAT gateway.
• For communication between Veeam backup infrastructure and computers you want to back up, one of the following authentication protocols is required:

• Windows New Technology LAN Manager (NTLM)
• [Not applicable to Veeam Agent for Unix] Kerberos

To learn more, see the Kerberos Authentication section in the Veeam Backup & Replication User Guide.

• Domain names of all managed servers added to the Veeam backup infrastructure and computers you want to back up must be resolvable into IPv4 or IPv6 addresses.

Keep in mind that for Veeam Agent computers that are included in a protection group for pre-installed Veeam Agents, only Veeam Backup & Replication server must be resolvable into IPv4 or IPv6 address.