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Contents
About TCP/IP Configuration and
Reference (SC41-5420) ........v
Prerequisite and related information . . vii
OperationsNavigator...........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
NetworkStatus.............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
WorkingwithConfigurationStatus.....41
Displaying TCP/IP Network Status Information 42
Display Multicast Groups........42
Displaying TCP/IP Interfaces ......43
DisplayingAssociatedRoutes......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
HostFileFormats...........51
Host Table Information with *AIX Files . . . 51
Host Table Information with *NIC Files . . . 51
Host Table Information with *AS400 Files . . 52
TipsforMergingHostTables.......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—MergetheFile ........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
CommunicationsLine..........57
Example: Multiple Hosts on the Same Network
overtheSameCommunicationsLine.....57
Example: Multiple Hosts on the Same Network
over Multiple Communications Lines.....57
Example: Multiple Hosts on Different Networks
overtheSameCommunicationsLine.....58
Example: Multiple Hosts on Different Networks
over Multiple Communications Lines.....58
Example: The Multihoming function ......59
TypeofService(TOS)..........60
TOS Example............61
Multiple Routes ............61
TCP/IP Port Restriction ..........62
Configuring TCP/IP Port Restrictions ....63
RelatedTablesandtheHostTable.......65
Using X.25 PVC instead of SVC .......67
© Copyright IBM Corp. 1997, 2001 iii