Hi, this is my first post...
Hello Admin 
Can I have an ask for something with my configuration ?
I have finished some kind of the tutorial to build ipsec site to site, and the "step" has finished completely.
I have a simulation with a local design topology with two PC's (FreeBSD 7.0) and the replace for public network (internet media) with a single switch device in the middle, it's look like this :
(PC-A)
Local Network A : 192.168.0.1/24
Network (Gateway) A : 202.10.10.1/24
SWITCH
(PC-B)
Network (Gateway) B : 202.10.10.2/24
Local Network B : 172.168.0.1/24
I got connect all this host by used a static routing, at first the communication between two site is completely connect eg. (Ping to Local Network B to Local Network A).
but when I've finished config the tunnel (GIF interface), started the racoon and ipsec daemon with those all configuration, I can't any longer ping the outside local network (Request Time out).
and sure there's no ESP protokol packet in the output of tcpdump on the traffic, I've tried Racoon-F command too, but the output is stack and look's not running.
Please, any suggest from this problem 
I'm really appreciated with the respons, Thank's in advance
Aulia.