Hi,
I'm trying to setup a site-to-site VPN using GUI interface.
I have the following configuration
Edge Router X ====> ISP Livebox with WAN access ===== Internet ===== WAN access using 4G Modem <==== Edge Router Lite
First of all, I have opened on my ISP box all ports that IPSEC is using to my Edge Router (1701,50,500,4500).
EdgeRouterX configuration : 
EdgeRouterX Configuration :
I have read that I can set peer to 0.0.0.0 if the IP address of the client is dynamic and this is what I'm looking for.
On the other side I have the following configuration :
EdgeRouterLite :
When I type
show vpn ipsec sa
It's not displaying anything, my tunnel is not even up... I have a take deeper look into the logs files but I can't find anything meanful to me, looks like IKE exchange is not even working. I don't know why, my tunnel seem to be configured but not up, this might be a NAT issue from my home side ? If anyone has idea, thanks for helping.