Cisco AnyConnect Socket Filter for Mac OS Big Sur Skip navigation University of Illinois Knowledgebase University of Illinois Services & Info Contact Us University of Illinois Technology Services Search term Select topicAll TopicsAccounts and Passwords Password ManagerCommunication and Collaboration cPanel Web Hosting Digital Signage Exchange Google Apps @ Illinois Illinois Mobile App Illinois Wiki Kaltura Lync / Skype for Business Office 365 Publish.illinois.edu (PIE) U of I Box ZOOMComputing Infrastructure Amazon Web ServicesHelp and Training Accessibility Outreach Help Desk OnSite Consulting Status Training Services (FAST 3) Usability ConsultingKnown ErrorsNetworking Virtual Private Networking (VPN) WirelessPrinting and Software WebStoreSafety and SecurityTeaching and Learning Canvas@illinois.edu Illinois Compass 2G Advanced Site Map Help Options Check Status Get Help Email the Help Desk Call the Help Desk (217) 244-7000 Submit a Suggestion Cisco AnyConnect Socket Filter for Mac OS Big Sur AnyConnect VPN version 4.9 and later use a system extension to provide functionality that used to be in a kernel extension for Mac OS Big Sur and later operating systems. What is Cisco AnyConnect Socket Filter? AnyConnect uses a network system extension on macOS 11, bundled into an application named Cisco AnyConnect Socket Filter. (This app controls the extension activation and deactivation and is installed under /Applications/Cisco.) The AnyConnect extension has the following three components: DNS proxy App/Transparent proxy Content filter Do I need to have Cisco AnyConnect Socket Filter installed and Running? Yes if you are running Big Sur or later. All three need to be installed and operational for the VPN software to function correctly. How do I tell if the Socket Filter is installed and Running? These components are visible in the macOS System Preferences – Network UI window: Figure 1. DNS Proxy Component in the Network Preference Panel - state is green and Running Figure 2. App/Transport Proxy Component in the Network Preference Panel - state is green and Connected Figure 3. Content Filter Component in the Network Preference Panel - state is green and Running You can read more technical details from Cisco: https://www.cisco.com/c/en/us/td/docs/security/vpn_client/anyconnect/anyconnect49/upgrade/AnyConnect_macOS_BigSur_Advisory.pdf Keywords: vpn mac bigsur socket network system extension Suggest keywords Doc ID: 114284 Owner: Network E. Group: University of Illinois Technology Services Created: 2021-10-13 13:32 CST Updated: 2021-10-14 08:05 CST Sites: University of Illinois Technology Services Feedback: 0 0 Comment Suggest a new document Subscribe to changes Copyright © 2021 | Privacy
