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I want to find l2tp over ipsec in macOS 10.13.4 but only get l2tp/ipsec. Is l2tp over ipsec canceled ?

I tried to select the option and connect VPN. But it is not working and I get the connection log:

Sat Sep 15 13:18:12 2018 : publish_entry SCDSet() failed: Success!
Sat Sep 15 13:18:12 2018 : publish_entry SCDSet() failed: Success!
Sat Sep 15 13:18:12 2018 : l2tp_get_router_address
Sat Sep 15 13:18:12 2018 : l2tp_get_router_address 192.168.12.1 from dict 1
Sat Sep 15 13:18:12 2018 : L2TP connecting to server 'xx.xx.xx.xx' (xx.xx.xx.xx)...
Sat Sep 15 13:18:12 2018 : IPSec connection started
Sat Sep 15 13:18:12 2018 : IPSec phase 1 client started
Sat Sep 15 13:18:12 2018 : IPSec phase 1 server replied
Sat Sep 15 13:18:13 2018 : IPSec phase 2 started
Sat Sep 15 13:18:13 2018 : IPSec phase 2 established
Sat Sep 15 13:18:13 2018 : IPSec connection established
Sat Sep 15 13:18:13 2018 : L2TP sent SCCRQ
Sat Sep 15 13:18:14 2018 : L2TP received Auth Challenge AVP - not supported
Sat Sep 15 13:18:14 2018 : L2TP received SCCRP
Sat Sep 15 13:18:14 2018 : L2TP sent SCCCN
Sat Sep 15 13:18:14 2018 : L2TP sent ICRQ`
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  • I have the same issue. My endpoint is a Mikrotik router running an L2TP/ipsec server. I can connect to via my android phone but not from my MackBook. I get the exact same log output as the OP
    – user324109
    Mar 13, 2019 at 1:17
  • Security settings have changed since MacOS 10.13 / iOS 13, which leads to issues while connecting to some ipsec server. If you manage the server, edit /etc/ipsec.conf setting file by changing sha2-truncbug=no instead of yes, and restart your ipsec server.
    – Antwan
    Oct 5, 2021 at 13:37

1 Answer 1

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l2tp/ipsec is equivalent to l2tp over ipsec. The / in technical English is often spoken as the word over.

You can find L2TP over IPSec in the Network System Preference settings:

  1. Launch System Preferences
  2. Select Network
  3. Select +
  4. Select Interface VPN
  5. Select VPN Type L2TP over IPSec

L2TP over IPSec

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  • hello, i try to select the option and connect vpn. but it is not work. and i get the connection log
    – SkyGrass
    Sep 26, 2018 at 13:07
  • Please can you edit your question to add the type of server/router/device. The error log suggests a configuration error in your settings. Sep 26, 2018 at 13:57

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