The VPN Log shows: "IKE Initiator Remote party timeout" error

12/20/2019 1322 32456

DESCRIPTION:

The VPN Log shows: "IKE Initiator Remote party timeout..." error

RESOLUTION:

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Problem Definition:

The  IKE Initiator: Remote Party timeout log shows several timeout messages and IKE negotiation aborted due to timeout after a short delay, indicates that there is a communication problem or the Initiator and Responder are unable to complete the Phase 1 negotiations.

Logs on Initiator:

If you receive an IKE Initiator: No response--remote party timeout error,Checking the logs on the Responder SonicWall will clearly display the exact problem, ensure that the Proposals are identical on both the VPN policies.

If no log messages are available for the Initiator VPN device, then follow these steps:

• Ensure that the Enable VPN option is checked under Manage | VPN | Base Settings| VPN Global Settings and the appropriate VPN policy is enabled.
• Network connectivity between units.
  

  TIP: You may try to connect via GVC software if GroupVPN is configured on the SonicWall. 

• IPSec Gateway address in Initiator SA specifies WAN address of IKE Responder. 
• If you are using FQDN in the IPSec Gateway Name or Address field, ensure that FQDN resolves to WAN address of IKE Responder.
• IKE access rules enabled on both SonicWalls.
• No other firewalls in the path are blocking IKE (UDP 500, 4500) or IPSec Protocol 50 and 51.
• Contact ISP to see if they're blocking IKE (UDP 500, 4500) or IPSec Protocol 50 and 51.
• If using SonicOS Standard with Aggressive Mode VPN, make sure the remote end’s firewall name is specified on the host firewall’s VPN policy.
• If the VPN Tunnel is being established with a 3rd Party VPN device, then make sure that NAT – T is disabled (in case there is no NAT device in front of the SonicWall) .
• Check the Local and Peer IKE IDs in the VPN policy if you have setup the Site to Site VPN Policy between the SonicOS Enhanced and Standard firewall.
• Click Advanced tab of the VPN Policy, set VPN to bind to Zone WAN.