Dear List, i am not so familiar with the deep art of network internals more with the basics one. Therefore i have a problem to interpret this error message: Dead loop on virtual device br0, fix it urgently! In the korresponding code i found this quote: /* It may be transient configuration error, when hard_start_xmit() recurses. We detect it by checking xmit owner and drop the packet when deadloop is detected. */ but i still have no idea what could be wrong. My setup is an bridge (two interfaces) and local interface. The bridge connects the dmz with the internet. How can i reproduce this error message - to find the cause. What does it mean (for a not so advanced admin;). Thanks in advance for any help. C. Moire - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html