Me again.
I just commented lines 237 to 239 in broadcast.cpp to skip that test:
236 // 239.192.0.0/14 => 239.195.255.255
237 //if ((ip & 0xfffc0000) == 0xefc00000)
238 // ip = 0xefc3ffff;
239 //else
works fine now.
Regards,
Manu