The IPX protocol implementation in Microsoft Windows 95 and 98 allows remote attackers to cause a denial of service by sending a ping packet with a source IP address that is a broadcast address, aka the "Malformed IPX Ping Packet" vulnerability.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5079
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-054
http://www.securityfocus.com/templates/archive.pike?list=1&mid=63120