phase 1 Authenticated With Public Key Encryption

hi
i seemed to have confused myself with something pretty basic.
when we use automatic method of key exchange,we are putting the RSA keys of
the communicating machines in ipsec.conf under the respective section.
what i assumed is that this is a way of public key encryption wherein only
the  DNS query of RSA keys is prevented as we already have the keys
exchanged, going by this anlaogy the sequence of messages during the phase
1 exchange should be as per sections 5.2-"5.2 Phase 1 Authenticated With
Public Key Encryption" and 5.3- "5.3 Phase 1 Authenticated With a Revised
Mode of Public Key Encryption"  in IKE RFC 2409.
i just wanted to confirm if freeswan is adhering to these 2 ways  and which
one under what conditions.

thanks and regards.