Troubleshooting articles of site to site VPN
Description
- Troubleshooting VPN Tunnel dropping or not initializing
- Troubleshooting VPN Tunnel up but no or intermittent traffic
- Traffic not passing through the site-to-site VPN tunnel
- Troubleshooting Site to Site VPN with multiple WAN connections
- Set MTU in VPN Environment in case of throughput issues
- Route based VPN: Traffic not passing to or from a Wireless Type Zone due to Access Rules NOT auto created
- Site to Site VPN tunnel is up but only passing traffic in one direction
- Troubleshooting Unable to access network resource over VPN tunnel issues
- Troubleshooting assigning DHCP over VPN, Hub and Spoke configuration and VPN with Overlapping subnets
- Troubleshooting based on Log messages
- Log Shows "Received notify: INVALID ID INFO"
- The log shows "IPSec Proposal does not match (Phase 1 and Phase 2)"
- IKE Initiator: No response - remote party timeout error
- Log shows "Received Unencrypted Packet in Crypto Active state"
- The log shows "Received Notify: No Proposal Chosen"
- The Log shows "payload processing failed" error message
- Troubleshooting VPN connections with 3rd party devices
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