User's Manual
Table Of Contents
- Getting Started
- Wizards
- Using the Startup Wizard
- Using the Wireless Wizard to Configure the Wireless Settings for ISA550W and ISA570W
- Using the DMZ Wizard to Configure the DMZ Settings
- Using the Dual WAN Wizard to Configure the WAN Redundancy Settings
- Using the Site-to-Site Wizard to Establish the Site-to-Site VPN Tunnels
- Using the Remote Access Wizard to Establish the IPSec VPN Tunnels or SSL VPN Tunnels for Remote Access
- Status
- Networking
- Configuring IP Routing Mode
- Port Management
- Configuring the WAN
- Configuring the WAN Redundancy
- Configuring the VLAN
- Configuring the DMZ
- Configuring the Zones
- Configuring the Routing
- Dynamic DNS
- IGMP
- VRRP
- Configuring the Quality of Service
- Address Management
- Service Management
- Wireless Configuration for ISA550W and ISA570W
- Firewall
- Configuring the Firewall Access Rules to Control Inbound and Outbound Traffic
- Configuring the Firewall Schedule
- Firewall Access Rule Configuration Examples
- Configuring the NAT Rules to Securely Access a Remote Network
- Configuring the Session Settings
- Configuring the Content Filtering to Control Access to Internet
- Configuring the MAC Filtering to Permit or Block Traffic
- Configuring the IP/MAC Binding to Prevent Spoofing
- Configuring the Attack Protection
- Configuring the Application Level Gateway
- Security Services
- VPN
- About VPN
- Configuring the Cisco IPSec VPN Server
- Configuring the Cisco IPSec VPN Client
- Configuring the Site-to-Site VPN
- Configuring the SSL VPN
- Elements of the SSL VPN
- Configuration Tasks to Establish a SSL VPN Tunnel
- Installing the Cisco AnyConnect VPN Client on User’s PC
- Importing the Certificates for User Authentication
- Configuring the SSL VPN Users
- Configuring the SSL VPN Gateway
- Configuring the SSL VPN Group Policies
- Configuring the SSL VPN Portal
- Configuring the L2TP Server
- Configuring the VPN Passthrough
- Viewing the VPN Status
- User Management
- Device Management
- Remote Management
- Administration
- SNMP
- Configuration Management
- Firmware Management
- Log Management
- Managing the Security License
- Managing the Certificates for Authentication
- Configuring the Email Alert Settings
- Configuring the RADIUS Servers
- Configuring the Time Zone
- Device Discovery
- Diagnosing the Device
- Measuring and Limiting Traffic with the Traffic Meter
- Configuring the ViewMaster
- Configuring the CCO Account
- Configuring the Device Properties
- Configuring the Debug Settings
- Troubleshooting
- Technical Specifications and Environmental Requirements
- Factory Default Settings
- Where to Go From Here
Networking
Configuring the WAN Redundancy
Cisco ISA500 Series Integrated Security Appliance Administrator Guide 112
4
- MS-CHAPv2: MS-CHAPv2 provides mutual authentication between
peers by piggybacking a peer challenge on the Response packet and an
authenticator response on the Success packet.
• Keep Live: Keeps the connection always on, regardless of the level of
activity. This option is recommended if you pay a flat fee for your Internet
service.
• Max Idle Time: Lets the security appliance disconnect from the Internet
after a specified period of inactivity (Idle Time). If you choose this option,
enter the value in minutes in the Maximum Idle Time field. This option is
recommended if your ISP fees are based on the time that you spend online.
• MTU: The Maximum Transmission Unit (MTU) is the size, in bytes, of the
largest packet that can be passed on. Choose Auto to use the default MTU
size, or choose Manual if you want to specify another size.
• MTU Size: If you choose Manual, enter the custom MTU size in bytes.
NOTE For PPPoE connections, the default MTU size is 1492 bytes. Unless a
change is required by your ISP, it is recommended that the MTU
values be left as is.
STEP 4 Click OK to save your settings.
STEP 5 Click Save to apply your settings.
Configuring the WAN Redundancy
If you have two ISP links, one for WAN1 and another for WAN2, you can configure
the WAN redundancy to determine how the two ISP links are used.
NOTE Before you configure the WAN redundancy, you must configure the secondary
WAN connection. See Configuring the Secondary WAN, page 104.