You just have to find the common setting between the two devices.
When setting up WPA you will see the option for either a radius server (Enterprise, and you see this in the corporate environment) or a place to enter a passphrase (Pre Shared Key, PSK).
Three identity types exist: the IP address of the peer, the peer's name, and the peer's distinguished name (DN).
You first must determine which of these three types you will use in identifying your IPSec peers.
The configuration of all three of these methods is covered later in this section after the coverage of the peer identity type.
An Id P that a user is authenticated in that Id P environment, for example, using an identity source known to the Id P.
SPs such as protected applications rely on assertions to authorize access to the application.
If the peer has more than one IP address, I recommend using the parameter, this is treated as a wildcard; all remote peers must use this key when authenticating.
Public key certificates and private keys help secure single sign-on (SSO) transactions carried out between an identity router and external entities including identity providers (Id Ps) and service providers (SPs).