• SonicOS 7.1
• About SonicOS
  • Working with SonicOS
  • SonicOS Workflow
  • How to Use the SonicOS Administration Guides
  • Guide Conventions
• About Firewall
  • Firewall Workflow
• Advanced
  • Changing Between SonicOS
    • Changing From Classic to Policy Mode
    • Changing From Policy to Classic Mode
  • Detection Prevention
  • Dynamic Ports
  • Source Routed Packets
  • Internal VLAN
  • Access Rule Options
  • IP and UDP Checksum Enforcement
  • Jumbo Frame
  • Connections
  • Control Plane Flood Protection
  • IPv6 Advanced Configuration
  • TCP
    • TCP Settings
    • Layer 3 SYN Flood Protection- SYN Proxy
    • Layer 2 SYN/RST/FIN Flood Protection - MAC Blacklisting
    • WAN DDOS Protection (Non-TCP Floods)
    • TCP Traffic Statistics
  • UDP
    • UDP Settings
    • UDP Flood Protection
    • UDP Traffic Statistics
    • UDPV6 Traffic Statistics
  • ICMP
    • ICMP Flood Protection for IPv4 version
    • ICMP Traffic Statistics
    • ICMP Flood Protection for IPv6 version
    • ICMPv6 Traffic Statistics
• Flood Protection
• SSL Control
  • Key Features of SSL Control
  • Key Concepts to SSL Control
  • Caveats and Advisories
  • Configuring SSL Control
  • Custom List
  • Enabling SSL Control on Zones
  • SSL Control Events
• Cipher Control
  • TLS Ciphers
    • Blocking/Unblocking Ciphers
    • Filtering Ciphers
      • Selecting Display Options
      • Displaying Ciphers by Strength
      • Displaying Ciphers by Block/Unblock
      • Displaying Ciphers by CBC Mode
      • Displaying Ciphers by TLS Protocol Version
  • SSH Ciphers
• Real-Time Black List (RBL) Filter
  • Configuring the RBL Filter
    • Enabling RBL Blocking
    • Adding RBL Services
    • Configuring User-Defined SMTP Server Lists
      • Configuring a White List
      • Configuring a Black List
    • Testing SMTP IP Addresses
• Use cases

Flood Protection

This tab is available under Network > Firewall > Flood Protection and is available only Classic mode of NSsp, NSa and TZ platforms.

The Flood Protection section allows you to:

• Manage:

  • TCP (Transmission Control Protocol) traffic settings such as Layer 2/Layer3 flood protection, WAN DDOS protection

  • UDP (User Datagram Protocol) flood protection

  • ICMP (Internet Control Message Protocol) or ICMPv6 flood protection.

• View statistics through the security appliance:
  • TCP traffic
  • UDP traffic
  • ICMP or ICMPv6 traffic

SonicWall defends against UDP/ICMP flood attacks by monitoring IPv6 UDP/ICMP traffic flows to defined destinations. UDP/ICMP packets to a specified destination are dropped if one or more sources exceeds a configured threshold.

• TCP
• UDP
• ICMP