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Logs showing the message: Peer's proposed network does not match VPN Policy's Network
10/14/2021 
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Description
This is the most common reason for traffic failing to traverse a VPN tunnel. This is accompanied by an error in the SonicWall Log. The following errors can be seen in the log:
- Proposal does not Match
- Invalid Cookies
Example below:
Resolution
Resolution for SonicOS 7.X
This release includes significant user interface changes and many new features that are different from the SonicOS 6.5 and earlier firmware. The below resolution is for customers using SonicOS 7.X firmware.
When configuring the VPN, under Network | IPSec VPN | Rules and Settings , the Local and Destination Network needs to be defined on each device. Make sure that the Local Network chosen matches the Destination Network chosen on the other site.
Resolution for SonicOS 6.5
This release includes significant user interface changes and many new features that are different from the SonicOS 6.2 and earlier firmware. The below resolution is for customers using SonicOS 6.5 firmware.
When configuring the VPN, under Manage | VPN | Base settings , the Local and Destination Network needs to be defined on each device. Make sure that the Local Network chosen matches the Destination Network chosen on the other site.
Resolution for SonicOS 6.2 and Below
The below resolution is for customers using SonicOS 6.2 and earlier firmware. For firewalls that are generation 6 and newer we suggest to upgrade to the latest general release of SonicOS 6.5 firmware.
When configuring the VPN, the Local and Destination Network needs to be defined on each device. Make sure that the Local Network chosen matches the Destination Network chosen on the other site.
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Categories
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