UTM interface to connect to on-the-premises router (behind the firewall) with a WAN IP - Management, Networking, Logging and Reporting - UTM Firewall - Sophos Community
Key New Features in Sophos Firewall OS v19
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Configure High Availability (HA) on Sophos UTM – D-Tech
Perform a basic configuration Sophos UTM in 12 simple steps – Techbast
Set up VPN for a Sophos XGS Firewall – VPN Tracker Blog
Sophos connect VPN setup on Sophos XG firewall - Timigate
Sophos Firewall: Configure an IPsec VPN failover with multiple connections
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Deploy a remote XG Firewall from Sophos Central and a setup site-to-site RED tunnel on Vimeo
Configuring the Sophos XG Firewall with VMware ESXi