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# TCP/IP Does Not Support 802.3 with SNAP

Article ID: 109654

Article Last Modified on 10/31/2006

APPLIES TO

- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1

This article was previously published under Q109654

## SUMMARY

Windows NT TCP/IP protocol only generates/responds to Digital Intel Xerox (DIX) frames. It does not autosense DIX or 802.3 frames and respond accordingly. Neither can it be set to use 802.3 with SNAP. This means that when communicating across devices that bridge between differing MACs (Media Access Controls), Windows NT relies on the bridge to sense and take care of all conversions between frame formats.

Additional query words: prodnt

Keywords: kbnetwork KB109654