User Guide

Novell TCP/IP 39

NetWare TCP/IP Administration Guide

103-000151-001

August 30, 2001

Novell Confidential

Manual 99a38 July 17, 2001

2 Novell TCP/IP

The Novell

TCP/IP stack consists of the following five NetWare

Loadable

Module

(NLM

) programs:

 BSDSOCK.NLM provides the BSD standards sockets interface.

 TCP.NLM provides the transport layer TCP and UDP interfaces.

 TCPIP.NLM provides IP, ICMP, IGMP, Routing and other networking

layer protocols.

 NETLIB.NLM is a library of the entire stack.

 INETCFG.NLM allows you to configure the stack with the help of

TCPCFG.NLM. The configuration is stored in SYS:\ETC\TCPIP.CFG

and SYS:\ETC\NETINFO.CFG. Please note, an abend may cause the

corruption of both of the above two .CFG files. So always take a back up

of the files.

The Novell TCP/IP software is now multiprocessor (MP) enabled and

multithreaded. The transport layer (TCP & UDP) is completely MP enabled

so that the stack can process any TCP/UDP connections on any processor.

These features are aimed at taking advantage of the multiple processors

available and at making the stack scale more than what it does on a uni-

processor machine.

The stack provides you with the TCP/IP protocols as per the Request For

Comments. NetWare 6 gives you the following new features:

 Selective Acknowledgement (page 40)

 Large Windows (page 40)

 TCP Defend Fin Attack (page 41)

 Classless IP Addresses (page 41)