+(defhost radius.vpn ((:ipv4 vpn 5) (:ipv6 vpn "::5:1")))
+(defhost precision.vpn ((:ipv4 vpn 6) (:ipv6 vpn "::6:1")))
+(defhost jazz.vpn ((:ipv4 vpn 7) (:ipv6 vpn "::7:1")))
+(defhost vampire.vpn ((:ipv4 vpn 8) (:ipv6 vpn "::8:1")))
+
+;; Untrusted private network.
+(defhost national.upn ((:ipv4 upn 1) (:ipv6 upn "::1:1")))