NSX-T Data Center provides the system-generated IPSec tunnel profile and an IKE profile that are assigned by default when you configure either an IPSec VPN or L2 VPN service. A system-generated DPD profile is created for an IPSec VPN configuration.

The IKE and IPSec profiles provide information about the algorithms that are used to authenticate, encrypt, and establish a shared secret between network sites. The DPD profile provides information about the number of seconds to wait in between probes to detect if an IPSec peer site is alive or not.

If you decide not to use the default profiles provided by NSX-T Data Center, you can configure your own profile using the information in the topics that follow in this section.