Linux can be configured as a Bridge by using the brctl utility. Once it act as a Bridge , Linux does the L2 learning and Maintains the L2 learning table. means it insert the net_bridge_fdb_entry in the L2 hash table. can i see the content of L2 hash table by using any command on promt , like Route for Forwarding information base?? some pointers in this direction would help me.... Mahesh - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html