hi list,

i have a problem to create a ipsec connection.

here my description
i have two locations with shorewall (3.2.9) firewalls.
location a: 172.31.0.0/20       - suse10.2 - kernel 2.6.18.2-34-default - 
Policy Match: Available - eth2=wan - eth0=lan

location b: 172.31.16.0/20 - suse 10.0 - kernel 2.6.13-15.13-default - 
Policy Match: Available - dsl0=wan - eth1=lan

so far they both work fine. now i want to connect them by ipsec.
i configured racoon
in /var/log/messages i can see 2 lines
        Feb 23 12:11:46 fw racoon: INFO: IPsec-SA established: ESP/Tunnel 
213.23.xxx.xxx[0]->87.139.xxx.xxx[0] spi=6115338(0x5d500a)
        Feb 23 12:11:46 fw racoon: INFO: IPsec-SA established: ESP/Tunnel 
87.139.xxx.xxx[0]->213.23.xxx.xx[0] spi=152085169(0x910a2b1)


in shorewall i useded this config:

/etc/shorewall/tunnels 
a:
ipsec                   net     87.139.xxx.xxx
b:
ipsec           net     213.23.xxx.xxx


/etc/shorewall/zones 
a:
vpnb    ipv4
net     ipv4
fw      firewall
loc     ipv4
b:
vpna    ipv4
net     ipv4
fw      firewall
loc     ipv4

/etc/shorewall/hosts 
a:
vpnb   eth2:172.31.0.0/20,87.139.xxx.xxx       ipsec
b:
vpna   dsl0:172.31.16.0/20,213.23.xxx.xxx       ipsec

/etc/shorewall/masq
a:
eth2                    eth0
b:
dsl0                    eth1


if i ping from a lanclient (location a) to a lanclient (location b) i get 
this:

Feb 23 13:09:31 fw kernel: Shorewall:FORWARD:DROP:IN=eth0 OUT=eth2 
SRC=172.31.10.2 DST=172.31.29.13 LEN=60 TOS=0x00 PREC=0x00 TTL=127 ID=9068 
PROTO=ICMP TYPE=8 CODE=0 ID=512 SEQ=27136 



what is wrong here?

kind regards
peter


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