Client Access Express Port Usage

CLIENT ACCESS EXPRESS SERVERS AND PORTS REQUIRED

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The following servers are used by Client Access Express for Windows. In addition to the servers listed, the Port Mapper (Port 449) is also used by all functions. However, if the user changes the Connection properties for an AS/400 connection so that "Where to look up Remote Port" is set to "Standard" or "Local," then the Port Mapper will not be used. In addition, if a DNS server is to be accessed, Port 53 should be made available to the client. SERVERS DEFAULT PORT DESCRIPTION ------------- ------------ ---------------------------------- Port Mapper 449 Port mapper returns the port number for the requested server ------------- ---------- ---------------------------------- Sign-on 8476 (9476) Sign-on server is used for every Client Access connection to authenticate users and to change passwords ------------- ---------- ---------------------------------- Central 8470 (9470) Central server is used when a Client Access license is required, and also for downloading translation tables. ------------- ---------- ---------------------------------- Data Queue 8472 (9472) Data Queue server allows access to the AS/400 data queues, used for passing data between applications. ------------- ---------- ---------------------------------- Database 8471 (9471) Database server is used for accessing the AS/400 database ------------- ---------- ---------------------------------- Remote Command 8475 (9475) Remote command server is used to send commands from a PC to an AS/400 and for program calls ------------- ---------- ---------------------------------- File 8473 (9473) File Server is used for accessing any part of the AS/400 file system ------------- ---------- ---------------------------------- Print 8474 (9474) Printer Server is used to access printers known to the AS/400 ------------- ---------- ---------------------------------- Web Admin 2001 (2010) Used to access web applications served by the AS/400 ------------- ---------- ---------------------------------- DDM 446 (448) DDM server is used to access data via DRDA and for record level access ------------- ---------- ---------------------------------- Telnet 23 (992) Telent server is used to access 5250 emulation ------------- ---------- ---------------------------------- NetServer 137, 138, AS/400 NetServer allows access to 139, 8474 AS/400 integrated file system from Windows PCs ------------- ---------- ---------------------------------- USF 8480 Ultimedia services is used for multimedia data ------------- ---------- ---------------------------------- LDAP 389 (636) Provides a network directory service ------------- ---------- ---------------------------------- Mgmt Central 5555 (5566) Management Central server is used to manage multiple AS/400s in a network -------------------------------------------------------------- Note 1: The port number in parenthesis is the one used to connect to the server via SSL (encrypted session). Note 2: Ports 449, 8xxx, and 9xxx can be started with the STRHOSTSVR *ALL command. The others need to be started individually, or can be set to autostart when TCP/IP is started (as can 449, 8xxx, and 9xxx). Note 3: Although 8474 is listed next to NetServer, it is only used internally so does not have to be set in your firewall IP filtering. However, that server (print server) must be started for NetServer to work properly. Note 4: If any applications are registered under Application Administration, then the remote command server will be required in addition to what is listed below. CLIENT ACCESS FUNCTION SERVERS USED ---------------------- ---------------------------- PC5250 display & printer Sign-on, Central, Telnet emulation ---------------------- ---------------------------- Data Transfer Sign-on, Central, Database ---------------------- ---------------------------- Base Operations Navigator Support Sign-on, Remote Command ---------------------- ---------------------------- All Operations Navigator Sign-on, Remote Command, File, function Print, Database, Web Admin, Mgmt Central, USF, NetServer, LDAP, Data Queue ---------------------- ---------------------------- ODBC Sign-on, Database ---------------------- ---------------------------- OLE DB Sign-on, Database, DDM, Remote Command, Data Queue ---------------------- ---------------------------- AFP Viewer Sign-on, Print ---------------------- ---------------------------- Client Access Install NetServer ---------------------- ---------------------------- Incoming Remote Command Uses no specific server, and AS/400 port will vary. PC-side port is 512 ---------------------- ---------------------------- Fax support Sign-on, Print -------------------------------------------------------------- For other applications that use Client Access APIs, the sign-on server will be needed, as well as whatever servers support the specific APIs being used. -------------- Curbstone Home Page ---------------- DISCLAIMER: This list could potentially change in future releases, or even in service packs. If you find that an additional server is accessed that is not mentioned here, please send a note to our Web administrator at rchca400@us.ibm.com and put "Update to II12227" in the subject line, and we will update the chart. Also, be aware that the port numbers above are just the default values. System administrators have the ability to map these to different port numbers. -------------- Curbstone Home Page ----------------