WebGUI show Site to Site VPN is up but traffic cannot pass through

Zyxel_Kevin
Posts: 917
Zyxel Employee





in VPN
Checking:
1)You have allow ESP Protocol from WAN to Device. Firewall cannot decrypt packets without allowing ESP rule.
2)You have allow rule for zone "IPsec_VPN" if you use Policy based VPN
(If you customize the VPN zone, please make sure you have the corresponding allowed rules)
3)Check you have correct static route/policy route if you use Route based VPN.
4)Check there is no overlap addresses with the peer subnet
You go to Maintenance -> Packet Flow Explore -> Routing Status to check all routes.
Tagged:
0
Categories
- All Categories
- 415 Beta Program
- 2.5K Nebula
- 156 Nebula Ideas
- 104 Nebula Status and Incidents
- 5.9K Security
- 314 USG FLEX H Series
- 285 Security Ideas
- 1.5K Switch
- 78 Switch Ideas
- 1.1K Wireless
- 42 Wireless Ideas
- 6.6K Consumer Product
- 256 Service & License
- 398 News and Release
- 85 Security Advisories
- 31 Education Center
- 10 [Campaign] Zyxel Network Detective
- 3.7K FAQ
- 34 Documents
- 34 Nebula Monthly Express
- 87 About Community
- 78 Security Highlight