• SonicOS and SonicOSX 7
• Configuring DNS Settings
  • Configuring DNS for IPv4
    • Specifying which DNS Servers are Used
    • Enabling Proxy of Split DNS Servers
    • DNS Rebinding Attack Prevention
    • DNS Rebinding and Cache Lookup
    • Enabling DNS Host Name Lookup over TCP for FQDN
    • DNS Cache Lookup
  • Configuring DNS for IPv6
  • Configuring Domain-Specific DNS Servers for Split DNS
    • About Split DNS
      • About Per-Partition DNS Servers and Split DNS
    • Adding a Split DNS Server
    • Editing Split DNS Entries
    • Deleting Split DNS Entries
• Configuring Dynamic DNS
  • About Dynamic DNS
    • Supported DDNS Providers
  • Dynamic DNS Profiles
    • Configuring Dynamic DNS Profiles
    • Editing Dynamic DNS Profiles
    • Deleting Dynamic DNS Profiles
• Configuring DNS Proxy Settings
  • About DNS Proxy
    • Supported Interfaces
    • DNS Server Liveness Detection and Failover
    • DNS Cache
    • High Availability Stateful Synchronization of DNS Cache
    • DHCP Server
  • Enabling Log Settings
  • Monitoring Packets
  • Configuring DNS Proxy Settings
    • Enabling DNS Proxy
    • Configuring DNS Proxy Settings
    • Deleting Static DNS Cache Entries
    • Viewing DNS Proxy Cache Objects
    • Flushing Dynamic DNS Cache Entries
• Configuring DNS Security
  • About DNS Sinkholes
  • Configuring DNS Security Settings
  • Deleting Entries in the Lists
  • Configuring DNS Tunnel Detection
    • Configuring DNS Tunneling Detection
    • Viewing Detected Suspicious Clients
    • Creating DNS Tunnel Detection White Lists
    • Deleting DNS Tunnel Detection White List Entries
• SonicWall Support
  • About This Document

Configuring DNS Proxy Settings

To configure DNS Proxy

1. Navigate to Network | DNS > DNS Proxy.

2. From the DNS Proxy Mode options, choose the IP version for sending/receiving DNS Proxy packets between the firewall and the DNS Servers:

   • IPv4 to IPv4 (default)

   • IPv4 to IPv6

3. From the Enforce DNS Proxy For All DNS Requests option, choose the protocol for sending/receiving DNS Proxy packets between the firewall and the DNS Servers:

   DNS Proxy protocol is an advanced setting. For more information about configuring this setting, contact SonicWall Technical Support.

   • UDP and TCP (default)
   • UDP only
4. To allow all DNS Proxy requests regardless of destination, select Enforce DNS Proxy for All DNS Requests. If this option is disabled, only DNS Proxy requests destined for SonicWall network security appliances are processed. This option is not selected by default.
5. For DNS over UDP requests only, select Enable DNS Proxy Cache. This option is not selected by default.
6. Click Accept.

To configure Split DNS servers, refer to Configuring Domain-Specific DNS Servers for Split DNS.