upgrade p2pnat scenarios to 5.0.0

testing/tests/p2pnat/behind-same-nat/hosts/alice/etc/ipsec.conf

@@ -1,8 +1,6 @@
 # /etc/ipsec.conf - strongSwan IPsec configuration file
 
 config setup
-	crlcheckinterval=180
-	strictcrlpolicy=no
 	plutostart=no
 
 conn %default
@@ -19,10 +17,11 @@ conn %default
 		
 conn medsrv
 	leftid=6cu1UTVw@medsrv.org
+	leftauth=psk
 	right=PH_IP_CAROL
 	rightid=carol@strongswan.org
+	rightauth=pubkey
 	mediation=yes
-	authby=psk
 	auto=add
 
 conn peer