ALG
Application Level Gateway

An ALG is a DPI device designed to provide security and overcome interoperability issues for a particular protocol or application. In effect, ALGs are a sophisticated type of firewall, analyzing the various fields associated with inbound or outbound traffic from a particular protocol and checking to see if contains malicious content or content that will cause an interworking problem. Numerous examples of ALGs have been developed for protocols such as SIP and HTTP.

If you enjoy using our glossary, here are some other useful resources you might like...

Get your weekly dose of telecoms terminology delivered straight to your inbox!

We promise, no spam - just clear-cut telecoms terms to keep you on top of your game.

Subscribe

Our YouTube channel offers over a hundred free videos (and counting!) covering a range of technology topics.

Subscribe to our channel to be the first to know when we release new videos:

FREE Intro to 5G Sample Course

Use this no-obligation free trial to get a taste of what it's like to be an Mpirical student.

Included with the trial is an all-access pass to the LearningZone, which contains learning tools and other useful resources to help you make the most of your training.

Start My Free Trial