Does Veeam set the DF (Don't Fragment) bit?

[rin]

Hi,

I would like to confirm whether Veeam explicitly sets the DF (Don't Fragment) bit in its network communication.

Is there any processing in the following products that sets the DF bit?
- Veeam Backup & Replication 13
- Veeam Agent for Linux 13
- Veeam Agent for Microsoft Windows 13

Or does Veeam rely entirely on the OS/network stack behavior without controlling the DF flag?

Thanks,
Rin

[vnikiforov]

Hello, Rin,

The DF (Don't Fragment) flag is an IPv4 header parameter (OSI model layers 4 and 3), it is managed by the OS kernel IP layer.
Veeam applications don't perform low-level or kernel-level IP stack actions.

[rin]

Hi, vnikiforov,

Thank you for the clarification.

I understand that the DF flag is managed by the OS/network stack and that Veeam does not explicitly control or configure it. This answers my question.

Thank you for your assistance.

Best regards,
Rin