IPSec VPN shared secret maximum length???

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Level 1

8 points

IPSec VPN shared secret maximum length???

Hi there,

I tried to connect to my corporate VPN on my iPad 2 (also on iPhone 3G and iPhone 4). The shared secret (aka. group password) is a 128 character long alphanumeric string, which works perfectly in Cisco VPN Client for Mac 4.9.01.

When I try to connect, it says:

"The VPN Shared Secret is incorrect"

At first I thought I'd mistyped the password, but then I created a profile in iPhone Configuration Utility and copied the shared secret into it. The result was the same.

Does anyone know about the character limitations of the shared secret?

Andras

iPad 2, iOS 4

Posted on Apr 7, 2011 5:02 AM

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Answer 1

Asatoran

Level 4

2,532 points

Apr 7, 2011 5:11 PM in response to sideshowsam

Google didn't find anything about the maximum length except this one post mentioning a max of 32 characters.

[http://discussions.apple.com/thread.jspa?messageID=12430863|http://discussions. apple.com/thread.jspa?messageID=12430863]

It is an unconfirmed statement so I wouldn't consider it authoritative unless someone can point to some documentation.

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Answer 2

sideshowsam Author

Level 1

8 points

Apr 8, 2011 3:12 AM in response to Asatoran

Thank you very much, at least I know what the limit might be. Since I don't have the authority to change the corporate settings, I consider it as a bug in iOS.

Do you know where I could file a bug report to Apple?

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Answer 3

Asatoran

Level 4

2,532 points

Apr 8, 2011 11:18 AM in response to sideshowsam

I don't know off hand how to file a report. If you are , or know someone in the Apple Developer program, you probably will have better luck through those channels. Otherwise, you can use [Apple's Product Feedback|http://www.apple.com/feedback> pages or [contact customer support|http://www.apple.com/contact>.

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