TCP/IP ports used by Client Access

This link appears to have a complete list http://www-912.ibm.com/s_dir/slkbase.nsf/1ac66549a21402188625680b0002037e/acc12fda96496e4b8625668f007ab75f?OpenDocument&Highlight=0,firewall

Answer courtesy Bryan Dietz via IGNITe/400 20 Dec 2001

The text summary of that page:

PC Function               Server Name  Port Non-SSL  Port SSL 
Server Mapper             as-svrmap        449           449 
License Management        as-central      8470          9470 
Database Access           as-database     8471          9471 
Data Queues               as-dtaq         8472          9472 
Network Drives            as-file         8473          9473 
Network Printers          as-netprt       8474          9474 
Remote Command            as-rmtcmd       8475          9475 
Signon Verification       as-signon       8476          9476 
Telnet (PC5250 Emulation) telnet            23           992 
HTTP Administration       as-admi >       2001          2010 
POP3 (MAPI)               pop3            5010           --- 
Management Central        as-mgtc >       5555          5566 
Ultimedia Services        as-usf          8480          9480 
Network Drives            as-netd        *8477           --- 
File Transfer             as-tran        *8478           --- 
Virtual Print             as-vrtp        *8479           --- 
DRDA                      DRDA             446           --- 
DDM                       DDM              447           448 
AnyNet                    APPCoverTCPIP    397           --- 

• These ports used only by 5763XK1.

You can use netstat *cnn from an iSeries command line to determine which services are running on the iSeries.