IBM SC41-5420-04, Tcp/Ip Configuration And Reference

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Contents
About TCP/IP Configuration and
Reference (SC41-5420) . . . . . . . . v
Prerequisite and related information . . vii
Operations Navigator . . . . . . . . . . . vii
How to send your comments . . . . . ix
Summary of changes . . . . . . . . . xi
Chapter 1. Configuring TCP/IP . . . . . 1
What you need to know before you can configure
TCP/IP .
. . . . . . . . . . . . . . . 1
Planning for TCP/IP Installation and Configuration . 2
Gathering Information About your Network . . . 2
TCP/IP Planning Checklists . . . . . . . . . 3
Line Description Parameters Checklist . . . . . 3
Local TCP/IP Host Information Checklist. . . . 4
Installing the TCP/IP Application Programs . . . . 5
Using the TCP/IP Administration Menu . . . . . 6
Using the Configure TCP/IP Menu . . . . . . . 7
Configuring TCP/IP using the EZ-Setup Wizard . . 9
Configuring TCP/IP using the Command Line
Interface .
. . . . . . . . . . . . . . . 9
Step 1—Configuring a Line Description . . . . 10
Step 2—Configuring a TCP/IP Interface . . . . 10
Step 3—Configuring TCP/IP Routes . . . . . 12
Step 4—Configuring TCP/IP attributes . . . . 16
Step 5—Configuring TCP/IP Remote System
Information (X.25) .
. . . . . . . . . . 16
Step 6—Configuring TCP/IP Host Table Entries 18
Adding an Entry to the Host Table . . . . 18
Work with TCP/IP Host Table Display . . . 19
AnyNet/400: APPC over TCP/IP . . . . . 22
Step 7—Configuring the Local Domain and Host
Name .
. . . . . . . . . . . . . . 22
Domain Name System (DNS) Server . . . . 23
Step 8—Starting TCP/IP and TCP/IP Servers . . 24
TCP/IP Jobs . . . . . . . . . . . . 25
End TCP/IP (ENDTCP) . . . . . . . 26
Step 9—Verifying the TCP/IP Connection . . . 26
Verifying Additional TCP/IP Connections . . . 27
Verifying TCP/IP Connections with Host
Name—Example.
. . . . . . . . . . 29
Verifying TCP/IP Connections with Internet
Address—Example .
. . . . . . . . . 30
Step 10—Saving Your TCP/IP Configuration . . 30
Chapter 2. TCP/IP: Operation,
Management, and Advanced Topics . . 33
Network Status . . . . . . . . . . . . . 33
Work with TCP/IP Network Status Menu . . . 33
Work with TCP/IP Interface Status . . . . . 34
Starting TCP/IP Interfaces . . . . . . . 35
Ending TCP/IP Interfaces . . . . . . . 36
Route-to-Interface Binding . . . . . . 36
Display TCP/IP Route Information . . . . . 37
Work with TCP/IP Connection Status . . . . 38
Ending TCP/IP Connections. . . . . . . 40
Working with Configuration Status . . . . . 41
Displaying TCP/IP Network Status Information 42
Display Multicast Groups. . . . . . . . 42
Displaying TCP/IP Interfaces . . . . . . 43
Displaying Associated Routes . . . . . . 44
Displaying Route Details Option . . . . . 45
Displaying TCP/IP Route Information . . . 46
Displaying TCP/IP Connections . . . . . 48
Displaying Connection Totals . . . . . . 49
TCP/IP Host Tables . . . . . . . . . . . 50
Managing TCP/IP Host Tables . . . . . . . . 51
Host File Formats . . . . . . . . . . . 51
Host Table Information with *AIX Files . . . 51
Host Table Information with *NIC Files . . . 51
Host Table Information with *AS400 Files . . 52
Tips for Merging Host Tables . . . . . . . 52
Merging TCP/IP Host Tables . . . . . . . 52
Example: Successful Host Table Merge . . . 53
Example: Partly Successful Host Table Merge 53
Managing the Host Table from a Central Site . . 53
Step 1—Create the Host Table on Your Central
System .
. . . . . . . . . . . . . 53
Step 2—Start FTP to a Remote System . . . 53
Step 3—Tell FTP to Send the Host File to the
Remote System .
. . . . . . . . . . 53
Step 4—Merge the File . . . . . . . . 54
IP Routing and Internet Control Message Protocol
(ICMP) Redirecting .
. . . . . . . . . . . 54
Dead Gateway Processing . . . . . . . . . 55
Negative Advice from TCP or the Data Link
Layer
. . . . . . . . . . . . . . . 55
How IP Responds to Negative Advice . . . . 56
Multihoming Function. . . . . . . . . . . 56
Example: A Single Host on a Network over a
Communications Line .
. . . . . . . . . 57
Example: Multiple Hosts on the Same Network
over the Same Communications Line .
. . . . 57
Example: Multiple Hosts on the Same Network
over Multiple Communications Lines .
. . . . 57
Example: Multiple Hosts on Different Networks
over the Same Communications Line .
. . . . 58
Example: Multiple Hosts on Different Networks
over Multiple Communications Lines .
. . . . 58
Example: The Multihoming function . . . . . . 59
Type of Service (TOS) . . . . . . . . . . 60
TOS Example . . . . . . . . . . . . 61
Multiple Routes . . . . . . . . . . . . 61
TCP/IP Port Restriction . . . . . . . . . . 62
Configuring TCP/IP Port Restrictions . . . . 63
Related Tables and the Host Table . . . . . . . 65
Using X.25 PVC instead of SVC . . . . . . . 67
© Copyright IBM Corp. 1997, 2001
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