Quick Reference Guide
Table Of Contents
- ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336Gv2
- Table of Contents
- Introduction
- Connecting the VPN Firewall to the Internet
- Understanding the Connection Steps
- Logging into the VPN Firewall
- Navigating the Menus
- Configuring the Internet Connections
- Automatically Detecting and Connecting
- Manually Configuring the Internet Connection
- Configuring the WAN Mode (Required for Dual WAN)
- Network Address Translation
- Classical Routing
- Configuring Auto-Rollover Mode
- Configuring Load Balancing
- Configuring Dynamic DNS (Optional)
- Configuring the Advanced WAN Options (Optional)
- Additional WAN Related Configuration
- LAN Configuration
- Choosing the VPN Firewall DHCP Options
- Configuring the LAN Setup Options
- Managing Groups and Hosts (LAN Groups)
- Viewing the LAN Groups Database
- Adding Devices to the LAN Groups Database
- Changing Group Names in the LAN Groups Database
- Configuring DHCP Address Reservation
- Configuring Multi Home LAN IP Addresses
- Configuring Static Routes
- Configuring Routing Information Protocol (RIP)
- Firewall Protection and Content Filtering
- About Firewall Protection and Content Filtering
- Using Rules to Block or Allow Specific Kinds of Traffic
- About Services-Based Rules
- Viewing the Rules
- Order of Precedence for Rules
- Setting the Default Outbound Policy
- Creating a LAN WAN Outbound Services Rule
- Creating a LAN WAN Inbound Services Rule
- Modifying Rules
- Inbound Rules Examples
- Outbound Rules Example
- Configuring Other Firewall Features
- Attack Checks
- Configuring Session Limits
- Managing the Application Level Gateway for SIP Sessions
- Creating Services, QoS Profiles, and Bandwidth Profiles
- Adding Customized Services
- Setting Quality of Service (QoS) Priorities
- Creating Bandwidth Profiles
- Setting a Schedule to Block or Allow Specific Traffic
- Blocking Internet Sites (Content Filtering)
- Configuring Source MAC Filtering
- Configuring IP/MAC Address Binding
- Configuring Port Triggering
- E-Mail Notifications of Event Logs and Alerts
- Administrator Tips
- Virtual Private Networking Using IPsec
- Considerations for Dual WAN Port Systems
- Using the VPN Wizard for Client and Gateway Configurations
- Creating Gateway to Gateway VPN Tunnels with the Wizard
- Creating a Client to Gateway VPN Tunnel
- Testing the Connections and Viewing Status Information
- NETGEAR VPN Client Status and Log Information
- VPN Firewall VPN Connection Status and Logs
- Managing VPN Policies
- Configuring IKE Policies
- Configuring VPN Policies
- Configuring Extended Authentication (XAUTH)
- Configuring XAUTH for VPN Clients
- User Database Configuration
- RADIUS Client Configuration
- Assigning IP Addresses to Remote Users (ModeConfig)
- Mode Config Operation
- Configuring Mode Config Operation on the VPN Firewall
- Configuring the ProSafe VPN Client for ModeConfig
- Configuring Keepalives and Dead Peer Detection
- Configuring Keepalives
- Configuring Dead Peer Detection
- Configuring NetBIOS Bridging with VPN
- Virtual Private Networking Using SSL
- Understanding the Portal Options
- Planning for SSL VPN
- Creating the Portal Layout
- Configuring Domains, Groups, and Users
- Configuring Applications for Port Forwarding
- Adding Servers
- Adding A New Host Name
- Configuring the SSL VPN Client
- Configuring the Client IP Address Range
- Adding Routes for VPN Tunnel Clients
- Replacing and Deleting Client Routes
- Using Network Resource Objects to Simplify Policies
- Adding New Network Resources
- Configuring User, Group, and Global Policies
- Viewing SSL VPN Policies
- Adding an SSL VPN Policy
- Managing Users, Authentication, and Certificates
- Adding Authentication Domains, Groups, and Users
- Creating a Domain
- Creating a Group
- Creating a New User Account
- Setting User Login Policies
- Changing Passwords and Other User Settings
- Managing Certificates
- Viewing and Loading CA Certificates
- Viewing Active Self Certificates
- Obtaining a Self Certificate from a Certificate Authority
- Managing your Certificate Revocation List (CRL)
- VPN Firewall and Network Management
- Performance Management
- Bandwidth Capacity
- Features That Reduce Traffic
- Features That Increase Traffic
- Using QoS to Shift the Traffic Mix
- Tools for Traffic Management
- Changing Passwords and Administrator Settings
- Enabling Remote Management Access
- Using the Command Line Interface
- Using an SNMP Manager
- Managing the Configuration File
- Reverting to Factory Default Settings
- Configuring Date and Time Service
- Monitoring System Performance
- Enabling the Traffic Meter
- Activating Notification of Events and Alerts
- Viewing the Logs
- Viewing VPN Firewall Configuration and System Status
- Monitoring VPN Firewall Statistics
- Monitoring the Status of WAN Ports
- Monitoring Attached Devices
- Viewing the DHCP Log
- Monitoring Active Users
- Viewing Port Triggering Status
- Monitoring VPN Tunnel Connection Status
- Viewing the VPN Logs
- Troubleshooting
- Basic Functions
- Power LED Not On
- LEDs Never Turn Off
- LAN or WAN Port LEDs Not On
- Troubleshooting the Web Configuration Interface
- Troubleshooting the ISP Connection
- Troubleshooting a TCP/IP Network Using a Ping Utility
- Testing the LAN Path to Your VPN Firewall
- Testing the Path from Your PC to a Remote Device
- Restoring the Default Configuration and Password
- Problems with Date and Time
- Using the Diagnostics Utilities
- Default Settings and Technical Specifications
- Network Planning for Dual WAN Ports
- What You Need to Do Before You Begin
- Cabling and Computer Hardware Requirements
- Computer Network Configuration Requirements
- Internet Configuration Requirements
- Where Do I Get the Internet Configuration Parameters?
- Internet Connection Information Form
- Overview of the Planning Process
- Inbound Traffic
- Virtual Private Networks (VPNs)
- The Roll-over Case for Firewalls With Dual WAN Ports
- The Load Balancing Case for Firewalls with Dual WAN Ports
- Inbound Traffic
- Inbound Traffic to Single WAN Port (Reference Case)
- Inbound Traffic to Dual WAN Port Systems
- Virtual Private Networks (VPNs)
- VPN Road Warrior (Client-to-Gateway)
- VPN Gateway-to-Gateway
- VPN Telecommuter (Client-to-Gateway Through a NAT Router)
- Two Factor Authentication
- Related Documents
- Notification of Compliance
- Index
Chapter 4: Firewall Protection and Content Filtering | 55
ProSafe Dual WAN Gigabit Firewall with SSL & IPsec VPN FVS336Gv2 Reference Manual
When blocking is enabled, the VPN firewall will limit the lifetime of partial connections
and will be protected from a SYN flood attack.
• LAN Security Checks.
- Block UDP flood. A UDP flood is a form of denial of service attack in which the
attacking machine sends a large number of UDP packets to random ports to the
victim host. As a result, the victim host will check for the application listening at that
port, see that no application is listening at that port, and reply with an ICMP
Destination Unreachable packet.
When the victimized system is flooded, it is forced to send many ICMP packets,
eventually making it unreachable by other clients. The attacker may also spoof the IP
address of the UDP packets, ensuring that the excessive ICMP return packets do not
reach him, making the attacker’s network location anonymous.
If flood checking is enabled, the VPN firewall will not accept more than 20
simultaneous, active UDP connections from a single computer on the LAN.
- Disable Ping Reply on LAN Ports. To prevent the VPN firewall from responding to
ping requests from the LAN, click this checkbox.
• VPN Pass through. When the VPN firewall is in NAT mode, all packets going to the
Remote VPN Gateway are first filtered through NAT and then encrypted per the VPN
policy.
If a VPN client or gateway on the LAN side of the VPN firewall wants to connect to
another VPN endpoint on the WAN, with the VPN firewall between the two VPN end
points, all encrypted packets will be sent to the VPN firewall. Since the VPN firewall filters
the encrypted packets through NAT, the packets become invalid.
IPSec, PPTP, and L2TP represent different types of VPN tunnels that can pass through
the VPN firewall. To allow the VPN traffic to pass through without filtering, enable those
options for the type of tunnel(s) that will pass through the VPN firewall.
Configuring Session Limits
To prevent one user or group from using excessive system resources, you can limit the total
number of IP sessions allowed through the VPN firewall for an individual or group. You can
specify the maximum number of sessions by either a percentage of maximum sessions or an
absolute number of maximum sessions. Session limiting is disabled by default.