The diagrams do not show specific Windows NT RAS client security features for calling up third-party PPP or SLIP servers. To learn more about available Windows NT security features, see the Help topic "Configuring Security." Note that Windows NT RAS can function as a SLIP client, but not as a SLIP server.
The diagrams also do not show direct serial (null modem) connections. For additional information about null modem connections, see Appendix B, "RAS Cabling," in the Microsoft Windows NT Networking Supplement.