Book Image

Untangle Network Security

By : Abd El Monem A Mohamed El Bawab
Book Image

Untangle Network Security

By: Abd El Monem A Mohamed El Bawab

Overview of this book

Table of Contents (21 chapters)
Untangle Network Security
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

WAN Failover


With Untangle WAN Failover, you can provide a redundant Internet connection to your network. Untangle WAN Failover runs connectivity tests on each WAN interface; you have to determine its status. If any test failed for a certain amount of time, the WAN interface will be considered to be down, and the traffic will be rerouted to the WAN interface with the lower ID.

Setting up interface tests

For Untangle Failover to work properly, you should configure the connectivity test for each WAN interface you have. Untangle NGFW provides different tests that could be used to determine WAN interface connectivity:

  • Ping test: Untangle NGFW will ping a configured IP address

  • ARP test: Untangle NGFW will request the MAC address of the interface's gateway using the Address Resolution Protocol (ARP)

  • DNS test: Untangle NGFW will try to query the DNS server configured in the interface settings

  • HTTP test: Untangle NGFW will try to create an HTTP connection to a specific site

You should select the...