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My question is why? To access the web service on a local machine you should be able to use its loop back or local IP. A lot of firewalls will prevent you from accessing your public IP from your private. Even if they are wide open. It is an issue with the NAT for the outbound connecting to itself.
Chris Bipes
Director of Information Services
CrossCheck, Inc.
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Aaron Bartell
Sent: Tuesday, January 19, 2016 6:03 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Full loop to public IP and back
I have a machine named KT1. While on KT1 I am trying to call a web service
using its public IP - essentially calling myself by first going out to the
internet and back again. The issue is it times out. I can access the
public IP (and web service) from many other computers but not from within
the same machine (KT1). From KT1 I can access other public IPs, just not
its own public IP. I've configured the firewall to be wide open so I don't
think it's that.
I've tried adding the public IP to CFGTCP opt 1 and opt 10 (with applicable
domain) but nothing I do seems to be working.
*Questions:*
1 - Do I need to restart TCP/IP services on IBM i after making CFGTCP
changes?
2 - Is there something obvious I am missing?
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