Connecting a remote MCU-based circuitries to the Internet

Is it possible for me to control a MCU-based robot to the internet using MAC Address provided it has Ethernet module interface in it?
Mode of connection is through Broadband ISP's
with blocked Port 80 and 23..
location: Philippines

Microcontrollers can be connected to the internet via ethernet. This requires the jack, the pulse transformer which is often referred to as "the magnetics", a PHY, and a MAC. These are all available externally, and some micros have various parts of this built in. For example, a PIC 18F67J60 has the MAC and PHY built in. You only need to add the transformer and the jack.

The MAC address is one piece of state that the MAC will require to operate. MAC addresses need to be globally unique.

Alvin,

Like Olin said, having the MAC and PHY built into your MCU will make your life MUCH easier as you work on the design.

To add the last little touch of convenience, a lot of ethernet jack manufacturers incorporate the pulse transformer inside them. The Digi-Key search separates them into their own category for convenience (see screenshot).

One Other slant would be to use a WIFI stack encapsulated as a serial interface part. The part is fully controlled via the serial interface from the MCU.

okay that's it, this is the situation:

the robot must be controlled via the internet, either by https or telnet, it needs to received serial data instruction...then it is required to use a broadband internet modem, 'cause i need to incorporated the ISP's modem in the design, to make it truly remote.. I used portforwarding (because it's the only one I knew ..) in connecting and configuring the network..but the problem is that all ports that I could used is blocked by the broadband internet service provider here in my location,namely port 80 and port 23, which I ought to use with the IP cam and the ethernet respectively..


now I'm finding way to fix this problem my using MAC addresses as references,rather than IP's,which is ever changing, in my network..

i wish I could use that one..my professor reject that design, wifi/internet controlled robot of mine....

he wanted the robot to be able to connect to the internet by itself...




the thing is i must control the robot,anyway it's a surveillance robot, even if the power and network line is unavailable...

Yes, something like the "XBee Wi-Fi":http://www.digi.com/products/wireless-wired-embedded-solutions/zigbee-rf-modules/point-multipoint-rfmodules/xbee-wi-fi.jsp#overview module from Digi International would be a good solution. But if you can't use that kind of part I guess the point is moot.