The VPN tunnel wasn't coming up for me and in the log there was the message:
Received notify: INVALID_ID_INFO
This was an interesting message and it really had nothing to do with the identification of the tunnel or addresses or, SA name or description, or even with the remote firewall's names or descriptions. It was caused by having both of the Sonicwalls in Aggressive mode for Phase 1 of the tunnel establishment. Switching both to Main mode solved the problem. The setting can be found in the VPN policy Proposals Tab.
Once this change was done, the VPN came right up and the two sites were communicating with each other. This is a setting that can catch some one off-guard and the message that inserted into the log can be deceiving. It can make one think the the name of something is incorrect. Sonicwall's support can have you running in circles too.
As a reminder:
PC remote support software try a fast growing and affordable remote support solution. Support somputers over the web almost instantly and do it without creeating a crunch in your budget. Deliver remote tech support software to your users from the office and then from home or another office. If your Internet access provider changes, that's ok, this system is dynamic and can adapt to the changes so your not stuck and unable to continue supporting your users remotely. Some support systems provide you with a static program then if your ISP changes or you want to support your clients, customers or company end-users from another location you have to buy another program. This isn't the way it should be. This system is created in such a manner that you can change ISPs or locations and the programs provided to you for remote support on the web still work. Instantlay they are aware of the changes and the very next time your users connect for remote support from you the software already are using the new settings.