IPv6DUPexample seems to be resetting Arduino

[vgsch]

Hi,

I followed your tutorial to start developing a communication system based on 6lowpan but IPv6UDPexample seems to be resetting the Arduino Mega 2560.
As I open the serial monitor for the node Arduino, it keeps printing the message "Memory Left: 3694", which are the first two prints in the code:

Serial.print("MEMORY LEFT:");
Serial.println(mem());

Am I missing something? I am only testing the node Arduino by now.
Thanks for the help.