IPX/SPX stands for Internetwork Packet Exchange / Sequenced Packet Exchange. NT's implementation adds support for NetBIOS over IPX which is used for NT browsing services. The internal network number is left at the default of 00000000 unless you are using File and Print Services for Netware or you have enabled IPX routing.
The frame types are:
- 802.2 format
industry standard - default for Netware 3.12 and greater
- 802.3 format
Developed by Novell. Default for pre-3.12 Netware versions.
- Ethernet_SNAP format
802.3 with SNAP header
802.5 with SNAP header
When you configure the NWLink transport, you can chose auto-detect which means NT will use the first frame type seen during its inpection period. Auto-detect only works well in a homogenous, single frame environment. If no IPX traffic is detected, 802.2 will be used. You should manually select the frame type which is useful if there are multiple frame types being used and you need to configure for multiple types.
SubNetwork Access Protocol (SNAP) used to transport Appletalk or SNA in IP or IPX environments.