Example for Configuring the Headquarters to Manage Branches (Cisco Routers) Using Efficient VPN and Establishing IPSec Tunnels - AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 CLI-based Typical Configuration Examples -
![IPSec VPN connection to Cisco ASA with loopback interfaces on internal GRE routers - Discussions - Sophos Firewall - Sophos Community IPSec VPN connection to Cisco ASA with loopback interfaces on internal GRE routers - Discussions - Sophos Firewall - Sophos Community](https://community.sophos.com/cfs-file/__key/communityserver-discussions-components-files/126/0535.Typical-regional-office-setup.png)
IPSec VPN connection to Cisco ASA with loopback interfaces on internal GRE routers - Discussions - Sophos Firewall - Sophos Community
![Cisco IOS VPN Configuration Guide - Site-to-Site and Extranet VPN Business Scenarios [Cisco 7200 Series Routers] - Cisco Cisco IOS VPN Configuration Guide - Site-to-Site and Extranet VPN Business Scenarios [Cisco 7200 Series Routers] - Cisco](https://www.cisco.com/c/dam/en/us/td/i/000001-100000/20001-25000/23001-23500/23245.ps/_jcr_content/renditions/23245.jpg)