You can choose networks over which Veeam Backup & Replication must transport data when you perform data protection and disaster recovery tasks. This option can be helpful if you have a non-production network and want to route data traffic over this network instead of the production one.
Preferred network rule applies only to traffic between the following backup infrastructure components:
- Backup server
- WAN accelerator*
- Gateway server**
- Backup proxy
- Backup repository
- Log shipping server
- Tape server
- Storage system (backup from storage snapshots scenario)***
* The rule applies only to traffic between the source and target WAN accelerators.
** The rule does not apply to traffic between the gateway server and backup repository. For the list of backup repositories with which the gateway server communicates, see Gateway Server.
*** The rule does not apply when backing up from Cisco HyperFlex systems or when the transport mode is Direct storage access.
To define networks for data transfer, you must create a list of preferred networks. When Veeam Backup & Replication needs to transfer data, it uses networks from this list. If a connection over preferred networks cannot be established for some reason, Veeam Backup & Replication will automatically fail over to the production network.
To set a network priority list:
- From the main menu, select Network Traffic Rules.
- In the Global Network Traffic Rules window, click Networks.
- In the Preferred Networks window, select the Prefer the following networks for backup and replication traffic check box.
- Click Add.
- Specify a network address using a CIDR notation or a network mask and click Add.
- Repeat steps 4-5 for all networks that you want to add.