Description

Will an IPSec Site-to-Site VPN form with different DPD threshold values on peers?

For example, having a DPD threshold value of 5 on the local site and 10 on the remote site.

Solution

The DPD threshold is the maximum number of unsuccessful dead peer detection (DPD) requests to be sent before the peer is considered unavailable.

 

So, setting this value to 5 on Local peer and 10 on Remote will not affect the initial VPN negotiation.

The Local site will consider the remote site as dead if there is no response for 5 DPD packets. However, the remote site will consider the local site as dead if there is no response to 10 DPD packets.

Modification History

2025-03-18 : Article Created