SonicWall DNS Filtering Service for NSA 5700 4-Year | Security, Subscription

Add a focused layer of protection to the SonicWall NSA 5700 with a 4-year DNS filtering service. By controlling domain requests at the DNS layer, this service helps block access to phishing sites, malware infrastructure, and other risky destinations before traffic reaches the network edge. The result is earlier threat interruption with less operational overhead. This service is well suited for organizations that need practical web control without adding complexity to the security stack. It supports acceptable-use policy enforcement, reduces exposure from user clicks, and gives security teams a cleaner way to manage access to known-bad or undesired domains. For distributed environments, it can also help standardize protection across locations. The 4-year term offers a strong balance of coverage and procurement efficiency. It reduces renewal churn while keeping the deployment aligned to a predictable service window. For teams that want to extend the value of the NSA 5700 with a targeted, policy-driven control point, DNS filtering delivers a clear security return.