Breaking News
Comments
Newest First | Oldest First | Threaded View
alangrau
User Rank
Author
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
Author
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
Author
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
Author
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
Author
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
Author
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?



Datasheets.com Parts Search

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

What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.

Brought to you by:

Like Us on Facebook
Special Video Section
The LTC2380-24 is a versatile 24-bit SAR ADC that combines ...
In this short video we show an LED light demo to ...
02:46
Wireless Power enables applications where it is difficult ...
07:41
LEDs are being used in current luxury model automotive ...
With design sizes expected to increase by 5X through 2020, ...
01:48
Linear Technology’s LT8330 and LT8331, two Low Quiescent ...
The quality and reliability of Mill-Max's two-piece ...
LED lighting is an important feature in today’s and future ...
05:27
The LT8602 has two high voltage buck regulators with an ...
05:18
Silego Technology’s highly versatile Mixed-signal GreenPAK ...
The quality and reliability of Mill-Max's two-piece ...
01:34
Why the multicopter? It has every thing in it. 58 of ...
Security is important in all parts of the IoT chain, ...
Infineon explains their philosophy and why the multicopter ...
The LTC4282 Hot SwapTM controller allows a board to be ...
This video highlights the Zynq® UltraScale+™ MPSoC, and sho...
Homeowners may soon be able to store the energy generated ...
The LTC®6363 is a low power, low noise, fully differential ...
See the Virtex® UltraScale+™ FPGA with 32.75G backplane ...
Vincent Ching, applications engineer at Avago Technologies, ...