Re: Ports needed for ACS when working from home over VPN -- MIDRANGE-L

If the remote users are using VPN, why would you need to open any ports on the firewall? They would already have access to the internal LAN at that point anyway.

If you need to open ports, best case is each user at home has a static IP address so you can lock access down to those at least.

Clay Carley

On 2020-04-20 14:20, Steinmetz, Paul via MIDRANGE-L wrote:

We are now starting to allow users to WFH without using RDP, via VPN.
Many ports need to be enabled on the firewall for remote access.

I found below link, not sure if this was a complete list.

TCP/IP Ports Required for IBM i Access and Related Functions

https://www.ibm.com/support/pages/tcpip-ports-required-ibm-i-access-and-related-functions

The following table lists the ports that IBM i Access and related functions use for communication with the IBM i OS System:

*
o PC Function

* Server Name

Port Non-SSL

Port SSL

* Server Mapper

* as-svrmap

* 449

* ---

* License Management

* as-central

* 8470

* 9470

* Database Access

* as-database

* 8471

* 9471

* Data Queues

* as-dtaq

* 8472

* 9472

* IFS Access using
System i Navigator

* as-file

* 8473

* 9473

* Network Printers

* as-netprt

* 8474

* 9474

* Remote Command

* as-rmtcmd

* 8475

* 9475

* Signon Verification

* as-signon

* 8476

* 9476

* Telnet (5250 Emulation)

* telnet

* 23

* 992

Navigator for i (web)

as-nav

2004

2005

* HTTP Administration

* as-admin

* 2001

* 2010

* POP3 (MAPI)

* pop3

* 5010

* ---

* Management Central

* as-mgtc >

* 5555 and 5544

* 5566 and 5577

* Ultimedia Services

* as-usf

* 8480

* 9480

* DDM/DRDA

* DDM/DRDA

* 446

* 448

* NetServer

* netbios >

* 137

* ---

* NetServer

* CIFS

* 445

* ---

* NetServer

* netbios >

* 139

* ---

* Service Tools Server

* as-sts

* 3000

* ---

DHCP Monitor

---

---

942

* RUNRMTCMD

* REXEC

* 512

* ---

If any of the above ports are restricted using a firewall or any other mechanism, IBM i Access or related functions may fail to operate. For assistance with configuring ports or working with a firewall beyond the above information, contact the firewall provider or obtain a consulting agreement.

Note:
The following ports are common to most IBM i Access Client products such as ODBC, Telnet and other specific functions:
Port 449 is used to look up service by name and return the port number.
Ports 8470 and 9470(TLS/SSL) are used for host code page translation tables and licensing functions.
Ports 8475 and 9475(TLS/SSL) are used to check for application administration restrictions.
Ports 8476 and 9476(TLS/SSL) are used for checking signon verification to authenticate.
depending on your needs you may only need the above ports and the port(s) for your function/application.

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
http://www.pencor.com/