UM DIA ESTA VPN FUNCIONA

Au tentar levantar a VPN apresenta o seguinte erro:
#service ipsec start ok
#ipsec auto --up vpn

No arquivo /log/secure

Aug 1 12:41:40 parede pluto[1078]: "vpn" #1: ERROR: asynchronous network error report on eth0 for message to 192.168.0.200 port 500, complainant 192.168.0.100: No route to host [errno 113, origin ICMP type 3 code 1 (not authenticated)]

este é o meu ipsec.conf

config setup
interfaces=ipsec0=eth0
klipsdebug=none
plutodebug=none
plutoload=%search
plutostart=%search
uniqueids=yes
conn %default
keyingtries=0
disablearrivalcheck=no
authby=rsasig
leftrsasigkey=%dnsondemand
rightrsasigkey=%dnsondemand
conn vpn
left=192.168.0.200
leftsubnet=192.168.0.0/24
leftnexthop=192.168.0.1
leftrsasigkey=0sAQNyeZCHa0P??????????????
right=192.168.0.100
rightsubnet=192.168.0.0/24
rightnexthop=192.168.0.1
rightrsasigkey=0sAQO9C??????????
auto=add

O que está errado??
Uso conectiva 8.0
Kernel 2.4.21
freewan 1.99