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Setting up ipSec VPN between ZyXEL routers

Posted on 2016-10-05
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Last Modified: 2016-10-06
I have a VPN link between two locations and have been using the old ZyWall 2+. Has worked well. Need to replace one of the routers with a ZyXEL USG 20, and I'm not able to get the two boxes to even set up the tunnel. Have checed the settings over and over, but not found what is wrong. Also wen through the article at ftp://ftp.zyxel.com/ZyWALL.../ZyWALL%20USG%2020_2.pdf  and did all the settings according to this, but still no tunnel or connection between the boxes.
Tried to figure out what is going on from the logs, but don't understand all of it. Have attached screenshots of logs at both sides in case it may help. Any suggestions how to get this up and working??
vpn_log_usg.jpg
vpn_log.jpg
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Question by:Olaf Berli
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masnrock earned 500 total points
ID: 41831711
Could you please post the configurations of both USG 20 units? Also, is the firmware up to date on both of them?
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by:Olaf Berli
Olaf Berli earned 0 total points
ID: 41831774
Thanks for your response.
Fortunately, the problem was solved earlier today. Upgraded the firmware to the latest version (recommended by ZyXEL support), and suddenly the tunnel was open and the traffic flow was as it should be.
Thanks again for your feedback.
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Expert Comment

by:masnrock
ID: 41831783
You're quite welcome. Great to hear. It's strange how many products have advertised features that don't really work, and then once the firmware is updated, start working great.
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