iptables -t nat -F
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -F
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# # NAT
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -t nat -A POSTROUTING --source 192.1.3.0/24 --destination 0.0.0.0/0 -j SNAT --to-source 192.1.2.254
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# # make sure that we never acidentially let ESP through.
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -N LOGDROP
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -A LOGDROP -j LOG
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -A LOGDROP -j DROP
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# #
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -I FORWARD 1 --proto 50 -j LOGDROP
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -I FORWARD 2 --destination 192.0.2.0/24 -j LOGDROP
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -I FORWARD 3 --source 192.0.2.0/24 -j LOGDROP
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# # route
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -I INPUT 1 --destination 192.0.2.0/24 -j LOGDROP
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# # Display the table, so we know it is correct.
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -t nat -L -n
Chain PREROUTING (policy ACCEPT)
target     prot opt source               destination         

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

Chain POSTROUTING (policy ACCEPT)
target     prot opt source               destination         
SNAT       all  --  192.1.3.0/24         0.0.0.0/0            to:192.1.2.254
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# iptables -L -n
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
LOGDROP    all  --  0.0.0.0/0            192.0.2.0/24        

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
LOGDROP    esp  --  0.0.0.0/0            0.0.0.0/0           
LOGDROP    all  --  0.0.0.0/0            192.0.2.0/24        
LOGDROP    all  --  192.0.2.0/24         0.0.0.0/0           

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

Chain LOGDROP (4 references)
target     prot opt source               destination         
LOG        all  --  0.0.0.0/0            0.0.0.0/0            LOG flags 0 level 4
DROP       all  --  0.0.0.0/0            0.0.0.0/0           
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# echo "initdone"
initdone
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]# : ==== end ====
kroot@swantest:/home/build/libreswan/testing/pluto/ikev1-2behind-nat-01\[root@nic ikev1-2behind-nat-01]#