Messages "Can't create Socket: Address Family Not Supported By Protocol" In Gateway Instance Trace File (Doc ID 2022399.1)

Last updated on AUGUST 18, 2016

Applies to:

Oracle API Gateway - Version 11.1.2 and later
Information in this document applies to any platform.

Symptoms

Oracle API Gateway 11.1.2.2.x on Red Hat Enterprise Linux 6.x.

 

The Gateway instance trace file contains many errors "can't create socket: Address family not supported by protocol"

ERROR   07/Nov/2014:15:26:48.072 [d3513700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:48.086 [d310f700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:48.127 [d2f0d700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:48.198 [d310f700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:49.362 [d2e0b700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:49.367 [d3412700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:49.371 [d300e700]     can't create socket: Address family not supported by protocol
ERROR   07/Nov/2014:15:26:49.410 [d310f700]     can't create socket: Address family not supported by protocol



Changes

1.) The problem may be triggered by the following network configuration:

No IPv6 interface

AND

An IPv6 entry for localhost, like this:

 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

2.) The problem shows up only related to Gateway management traffic, for example when OAG Manager is used.

Cause

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