Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist
Cohesity

COHESITY Documentation

Explore our documentation to get started, discover products & new features, access troubleshooting guides, register sources, platforms support.

Products
Data Security Alliance
Visit Cohesity.com
Demos
Support
Blogs
Developers
Partner Portals
Cohesity Community
© 2026 Cohesity, Inc. All Rights Reserved.
Terms of Use|
Privacy Policy|
Legal|
  1. Home
  2. Veritas NetBackup™ Administrator's Guide, Volume I
  3. Section II. Configuring hosts
  4. Enabling support for NAT clients and NAT servers in NetBackup
  5. Communication with clients other than NAT clients
Veritas NetBackup™ Administrator's Guide, Volume I

Communication with clients other than NAT clients

When NAT support is enabled on a NetBackup server, the default behaviour of the server is to perform all client connections via the NetBackup messaging broker service on the master server. This requires all clients that the server communicates with to have NAT support enabled. In this default configuration, the server will fail to communicate with any clients that have NAT support disabled or those running a version of NetBackup lacking NAT support. It is possible to instruct the server to attempt a direct connection to such clients by setting the ENABLE_DIRECT_CONNECTION option to TRUE. Setting this option allows a NetBackup server to work with clients that have NAT enabled (using reverse connections) and those that have NAT disabled (using direct connections).

See ENABLE_DIRECT_CONNECTION for servers.

In an AIR setup, both source and target master servers must be enabled for direct connection.

Feedback

Was this page helpful?
Previous

Removing NAT support from NetBackup

Next

Performance characteristics of NAT support

Feedback

Was this page helpful?