Basic connection Ethernet Shield + Arduino Duem168

Forum 2005-2010 (read only) Hardware Interfacing
1

So I've just gotten my Ethernet shield, and have not been able to use it as a client for the last 2 days...It simply won't connect to any IP, I have tried seemingly all different combinations of code...

Hardware : simple ethernet cable into the shield, mounted onto arduino. I'm using USB as a power source.

Software :

byte mac[]     = { 0x00, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[]      = { 192, 168, 2, 177 };
...
Ethernet.begin(mac, ip);

does not work, just like

byte mac[]     = { 0x00, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[]      = { 192, 168, 2, 177 };
byte gateway[] = { 192, 168, 2, 1 };
byte subnet[]  = { 255, 255, 255, 0 };
...
Ethernet.begin(mac, ip, gateway, subnet);

...return a failed connection. I pinged the IP, and have no problem there, it's not taken.

The last thing I am suspicious of...I'm working on this through school, which means that I am connection through (probably) a giant hub of some sort, and do not have access to the 'actual' router I'm connecting to. Any chance this has to do with it? These big institutions usually have a bunch of firewalls, filters, etc...Could it affect my connectivity?

Thanks

2

These big institutions usually have a bunch of firewalls, filters, etc...Could it affect my connectivity?

Most definitely. There is a sample sketch that responds to ping requests, if I remember correctly. With that sketch running, are you able to ping the Arduino?

3

Not sure what you mean...this is the list of examples provided by Arduino :

ChatServer
ChatClient
WebClient
WebServer
PachubeCient
BarometricPressureWebServer
UDPSendReceiveString
UdpNtpClient

In all of them I can't get past the connection point.

Thanks!

4

Is it an 'official' Wiznet 5100 Ethernet shield ? There is another type of ethernet shield sold for the Arduino based on the ENC28J60 chip. The examples do not work with this kind of shield.

5

Yeah it's the WIZnet 5100 I believe, this is what I got

http://www.iprototype.nl/products/arduino/shields/ethernet

I'll try to connect it somewhere else (personal router) and see if I cant get more luck...