Question

Trouble connecting from Mac Big Sur

Posted September 28, 2021 48 views
UbuntuSecurityVPNUbuntu 20.04

Hi,

Great article. Just 2 small steps of advice are missing for anyone on a Mac Big Sur.

I couldnt connect from Mac OSX Big Sur and these steps fixes it ..

  1. I was getting this error: “DH group MODP2048 inacceptable, requesting MODP1024”. It was an issue with the ike settings in ipsec.conf. The “3des-sha1-modp1024!” restricts the algorithm to one that isnt used by default on Mac OSX Big Sur. After removing that and replacing 1024 algorithms with “aes256-sha1-modp2048,aes128-sha1-modp2048,3des-sha1-modp2048” that error disappears

  2. Mac Big Sur will not trust certificates automatically in Keychain. Find the cert in Keychain Access, double click and set the cert to always trust.

Hope this helps.

Euan

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1 answer

Hi there @euanMantaRay,

Thank you for taking the time and providing the solution here! 🙌

Best,
Bobby