IBM SC41-5420-04 User Manual

Page 80

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The services table stores the mapping of services to ports or ports to services as
shown in Figure 59. The mapping information is usually accessed with the
getservbyname() and getservbyport() socket functions.

The protocol table stores the mapping of protocol names to protocol numbers and
protocol numbers to protocol names. Socket applications use getprotobyname() and
getprotobynumber() functions to access this table (Figure 60).

Work with Service Table Entry

System:

SYSNAM03

Type options, press Enter.

1=Add

4=Remove

5=Display

Opt Service

Port Protocol

echo

7 udp

finger

79 tcp

finger

79 udp

ftp-control

21 tcp

ftp-control

21 udp

ftp-data

20 tcp

ftp-data

20 udp

gopher

70 tcp

gopher

70 udp

graphics

41 tcp

graphics

41 udp

pop3

110 tcp

More...

Parameters for options 1 and 4 or command

===>

F3=Exit

F4=Prompt

F5=Refresh

F6=Print list

F9=Retrieve

F12=Can

F17=Top

F18=Bottom

Figure 59. Work with Service Table Entry Display

Work with Protocol Table Entry

System:

SYSNAM03

Type options, press Enter.

1=Add

4=Remove

5=Display

Protocol

Opt

Protocol

number

_

_____________________________

_

icmp

1

_

ip

0

_

tcp

6

_

udp

17

Bottom

Parameters for options 1 and 4 or command

===> ______________________________________________________________________

F3=Exit

F4=Prompt

F5=Refresh

F6=Print list

F9=Retrieve

F12=Cancel

F17=Top

F18=Bottom

Figure 60. Work with Protocol Table Entry Display

66

OS/400 TCP/IP Configuration and Reference V5R1

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