• Secure Mobile Access
• About this Guide
  • Organization of this Guide
  • Guide Conventions
• About SonicWall Secure Mobile Access
  • About the SMA Appliance
  • Key SSL VPN Concepts and SMA Features
    • Resources
    • Users and Groups
    • Authentication
    • Communities
    • Access Policy
    • End Point Control (EPC)
    • SSL/TLS and Encryption
    • Single Sign-On
    • Sharing Configuration Data
    • Role-based Administration
    • System Monitoring and Logging
  • SonicWall SMA Components
    • Client Components and Access Methods
      • WorkPlace
      • Network Explorer
      • Connect Tunnel Clients
      • Mobile Connect App
      • Translated Web Access
      • Custom Port Mapping
      • Custom FQDN Mapping
    • End Point Control Components
    • Administrator Components
      • Setup Wizard
      • Appliance Management Console (AMC)
      • Access Services
  • Managing Multiple Appliances
    • Central Management Server
    • Global Traffic Optimizer
• Planning Your VPN
  • About Designing Your VPN
    • Who Will Access Your VPN?
    • Which Types of Resources Should Users Have Access To?
      • How Will Users Access Your Resources?
      • Tunnel, Proxy, or Web: Which Access Method is Best?
    • Security Administration
      • Defining Resources
        • Web Resources
        • Client/Server Resources
        • File Shares
      • Managing Access Control with an Access Policy
      • Access Control for Bi-Directional Connections
      • Design Guidelines for Access Rules
  • End Point Control
    • Advanced EPC
  • Putting It All Together: Using Realms and Communities
• Common VPN Configurations
  • About the Configurations
  • Deployment Scenario: Remote Access for Employees and Partners
    • Establishing an Authentication Realm
    • Identifying Users
    • Adding Resources
    • Creating Zones of Trust
      • Creating a Device Zone for Trusted Users
      • Creating a Device Zone for Partners
      • Creating a Quarantine Zone for Untrusted Users
  • Customizing WorkPlace
    • Modifying the Default Style and Layout
    • Creating a New WorkPlace Style and Layout
      • Creating a WorkPlace Style
      • Creating a Workplace Layout
    • Creating an Employee Community
      • Specifying Access Methods for Employees
      • Configuring End Point Control for Employees
      • Configuring the WorkPlace Appearance for Employees
    • Creating a Partner Community
      • Specifying an Access Method for Partners
      • Configuring End Point Control for Partners
      • Configuring WorkPlace Appearance for Partners
    • Access Control Lists
      • Adding a Rule for Limited Resources
      • Adding an Unrestricted Rule
  • Testing the Deployment Scenario
  • Other Remote Access VPN Scenarios
    • Providing Access to Web Resources
      • Defining Specific Web Resources
      • Web Resources on a Portion of Your Network
      • All Web Resources on Your Network
    • Web-Based File Access to Entire Networks
    • Broad Access to Network Resources
    • Remote Access for Mobile Users
  • Additional Partner VPN Scenarios
    • Access to a Specific Web Resource Using an Alias
    • Web-Based Access to a Client/Server Application
  • End Point Control Scenarios
    • Quarantining Employees on Untrusted Systems
    • Denying Access
  • Access Policy Scenarios
  • Application-Specific Scenarios
    • Providing Access to Outlook Web Access (OWA)
    • Providing Access to Voice Over IP (VoIP)
    • Providing Access to Windows Terminal Services or Citrix Resources
  • Authentication Scenarios
    • Using Multiple Realms vs Single Realm
  • Access Component Provisioning
    • Deploying the Same Agents to All Users
    • Deploying Different Agents to Different Users
• SonicWall Support
  • About This Document

Design Guidelines for Access Rules

Because the appliance processes your access control rules sequentially, the order in which you organize them is significant in terms of whether access is permitted or denied. Carefully review your security policy settings to avoid inadvertently placing rules in the wrong order.

• Put your most specific rules at the top of the list. As a general rule, it is best to put your most specific rules at the top of the list. Putting broader rules that grant more permissions at the top of the list may cause the appliance to find a match before it has a chance to process your more restrictive rules.
• Be careful with Any rules. If you create a rule that does not restrict access to a particular user or destination resource, carefully consider its impact on policy rules.
• Optimizing performance. Because the appliance evaluates rules in sequential order, you can optimize performance by placing the network resources that are accessed most frequently at the top of the list.
• Avoid resource and access method incompatibilities. In some very specific cases, certain combinations of resource types and access methods can create problems with your access policy. AMC validates your rule and notifies you of potential problems when you save it. Refer to “Security Administration” in the Installation and Administration Guide for details on resolving incompatibility issues.