SonicWall DNS Filtering Service for TZ570P 4-Year | Firewall Security

Strengthen DNS-layer control where threats often begin. SonicWall DNS Filtering Service for TZ570P adds domain-level filtering to help stop access to risky destinations before a connection is established. For security teams, that means another control point that can reduce exposure, support acceptable-use policy, and improve visibility into outbound web requests. This 4-year service is built for organizations running the TZ570P platform and looking to extend protection without introducing operational noise. DNS filtering is especially valuable when you want to block known-bad domains, limit access to categories that do not belong in the business environment, and apply policy consistently across users. The long service term supports multi-year budgeting and reduces the churn of annual renewals. For teams standardizing on SonicWall, this is a practical way to add a focused layer of protection that complements firewall policy and helps keep the network cleaner at the edge.