I'm trying to debug a Cisco IPSec VPN issue (using native OSX VPN, not a separate client) but I can't find any options to turn on debugging. Looking around the net it seems there was options in the Advanced tab at one point but I don't see them in Sierra.
MacOS – Enable VPN debug on macOS Sierra
macosvpn
Related Question
- MacOS – Routing all traffic except a few IP-ranges though default gateway in Mountain Lion
- MacOS – Connecting to VPN (Mac OS X)
- MacOS – Where is the “Send all traffic over VPN connection” setting in OSX 10.9 Mavericks
- VPN Troubleshooting – Cisco IPsec VPN Negotiation Fails After Network Disconnect
- MacOS – Connecting to Cisco AnyConnect VPN without stored certificate or shared secret
Best Answer
Logging is enabled by default. The logs can be inspected using the Console app
open /Applications/Utilities/Console.app
. Select "Errors and Faults" and look for "neagent" lines.