Accessing shared folders over IPSec Site to site VPN
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that is the problem! i dont get the logs at all, i disabled the firewall on my ISP router for sure and nothing. i have included the screenshot from my policy control rules.
Thank you for your time.
The ipsec site to site vpn gives that the connected is established.
Tunnel [GW_To_OldOffice:Con_To_OldOffice:0x6884d946] built successfully
Office 2 (New_Office):Office1 routing:
Office2 routing:1 - 
            
is it possible that ESP packets are getting blocked?
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Yes that could be one reason because you don't have either USG having the WAN IP behind other NAT routers that you need to forward ports.
Have you a rule to allow inbound UDP port 500, 1701, 4500 and protocol 50 from WAN to Zywall?
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i have no rules set and not only the one in this picture on both zyxel devices. i can see that AH and ESP are in allow_from_ wan to zywall service group.
i have 4500 and 500 and 1701 ports forwarded in the isp router to test if it works but i have the same results!.
is it possible if you have time that you can connect to me through teamviewer or privatly. thank you for taking much of your time.0 - 
            
Peter fixed and solved the routing problems. 🙏 thank you
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Hello. I have the same problem, only that I have IPsec site-to-site but in a LAN. Class 1.0 so I can connect with 5.0. Connectivity is through 2 antennas that are part of class 1.0. I managed to do site-to-site VPN but I can't see the computers from one building in another class.
If you can help me, that would be great. Thank you0 
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