Incorrect Node Address In IPX Header Causes Broadcast Storm

CAUSE

When you start a Windows 95-based computer that uses the IPX/SPX- compatible network protocol, frames may be sent out with incorrect IPX header information under certain circumstances. Specifically, the node (MAC) address is incorrect. Novell NetWare servers and IPX routers try to respond to these frames by sending to the incorrect address. Because there is no response, the servers and routers continue to retry, eventually generating a broadcast storm.

This problem is especially noticeable if the IPX frame type is set to Auto. In this case, the initial RIP and SAP packets that are sent out to detect which frame type is in use on the network cause numerous responses to be sent to the incorrect MAC address. The effect is less dramatic if the IPX frame type is set to a specific type.