Breaking News
Comments
Newest First | Oldest First | Threaded View
alangrau
User Rank
Rookie
re: Basics of embedded firewalls - Part 1: Exploding the myths
alangrau   2/8/2012 2:44:59 PM
NO RATINGS
One study showed that about half of new embedded devices include some type of communication protocol. The other half are standalone devices that are never connected to any network. The stand alone devices, as you point out, don't require this type of protection. Some cars now provide communication capability and have been hacked. Our view is that any device that communicates needs protection, and we have seen many examples that support this.

Robotics Developer
User Rank
Rookie
re: Basics of embedded firewalls - Part 1: Exploding the myths
Robotics Developer   2/3/2012 6:49:29 PM
NO RATINGS
I would assume that some embedded devices do not need protection if they do not connect to the internet or other networks. On the other hand there is a need to ensure safe operation for those critical devices (cars come to mind)not "connected" to anything but non the less are life safety related. While having everything "on line/connected" seems like a great idea; my question is why "everything"? We should consider what needs to be connected versus what needs to be programmed or monitored remotely. Then the considerations for each unique system's use can come into play.

alangrau
User Rank
Rookie
re: Basics of embedded firewalls - Part 1: Exploding the myths
alangrau   1/31/2012 5:41:51 PM
NO RATINGS
That assume that the embedded device is using Linux as the operating system - and a lot of devices do not use Linux. Even if you are using Linux, it is important to understand the requirements of the firewall for the device being built. Does the filtering provided by the Linux firewall provide the best solution? Or would something designed for embedded devices provide a better solution? That really depends on the specific requirements of the device.

alangrau
User Rank
Rookie
re: Basics of embedded firewalls - Part 1: Exploding the myths
alangrau   1/31/2012 5:20:26 PM
NO RATINGS
You are correct in that embedded devices are lean. An embedded firewall needs to be designed to be fast and small. It does not need to support antivirus filtering (unless it is a windows device), simple rules-based filtering will meet the needs of most embedded devices. A separate infrastructure that isolates them from the normal Internet is not realistic in all cases. Many devices will be on the Internet and do need some level of protection.

Heng_Lou
User Rank
Rookie
re: Basics of embedded firewalls - Part 1: Exploding the myths
Heng_Lou   1/31/2012 3:54:17 PM
NO RATINGS
Linux have a very good build-in firewall, that we could just configure it for what ever we need in the Embedded devices.

prabhakar_deosthali
User Rank
CEO
re: Basics of embedded firewalls - Part 1: Exploding the myths
prabhakar_deosthali   1/31/2012 1:34:29 PM
NO RATINGS
Embedded devices are the most lean kind of software/hardware systems. It may going too far in putting firewalls, antivirus and all that kind stuff to avoid their hacking. Instead why not have separate network infrastructure for them which is secure and totally isolated from the normal internet?



EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Oh, No! My Antique Analog Meter Has Twitched Its Last
Max Maxfield
16 comments
Well, life is certainly full of ups and downs, isn't it? When it comes to the antique analog meters I'm using in a number of my hobby projects, things appeared to be going swimmingly well, ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
20 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
15 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
46 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)