Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

VPN Client - Mac OSX - Firewall Mismatch error 435

I have been unsuccessfull in connecting to my company's network with the VPN Client - I keeping getting a Firewall Mismatch error (#435). I've been trying off & on for the last year or so as updates to Cisco's VPN Client for OSX have been released. I've got the latest version (4.9) loaded on my Mac ... but I still get the same error message. I've tried every combination I can think of with my local firewall settings ... but nothing seems to work.

Is there anything I can do locally on my end to fix the problem?

New Member

Re: VPN Client - Mac OSX - Firewall Mismatch error 435

The Concentrator you are trying to connect to has a setting which requires a certain firewall to be enabled before connecting. Most likely it is the Cisco Integrated Client Firewall which Linux and MAC I am pretty sure do not have. You will not able to connect until the VPN administrator cahnges that setting or creates another group for you to connect.