The ArpUseEtherSNAP property indicates whether Ethernet packets follow the IEEE 802.3 Sub-Network Access Protocol (SNAP) ...

The ArpUseEtherSNAP property indicates whether Ethernet packets follow the IEEE 802.3 Sub-Network Access Protocol (SNAP) encoding. Setting this parameter to 1 will force TCP/IP to transmit Ethernet packets using 802.3 SNAP encoding. By default, the stack transmits packets in DIX Ethernet format. Windows NT/Windows 2000 systems are able to receive both formats. Default: FALSE.