ISSUE:

Users attempting to connect to Cisco AnyConnect while connected to ISUNet with OS X Catalina will receive an error message starting the VPN Client was unable to successfully verify the IP forwarding table modifications (See Figure 1).

The VPN client was unable to successfully verify the IP forwarding table modifications. A VPN connection will not be established. I have reinstalled the WNIC driver and updated the BIOS. The VPN client was unable to successfully verify the IP forwarding table modifications. A VPN connection will not be established. I have reinstalled the WNIC driver and updated the BIOS.

Figure 1:
Techtools for mac.

Cisco Anyconnect Mac Client Download

Resolution:

Users may contact the TSC to request an updated version of Cisco AnyConnect for Mac, which will work with Catalina and all previous Mac OS.

Ip Forwarding Table Modifications Anyconnect Mac Download

You can request this VPN software by navigating to ITHelp.IllinoisState.edu and submitting a request, calling the TSC at (309) 438-4357 or emailing us at SupportCenter@IllinoisState.edu