PM45676; SIP container performs reverse DNS lookups

Download Description

PM45676 resolves the following problem:

ERROR DESCRIPTION:
WebSphere Application Server Session Initiation Protocol (SIP)
container performs reverse DNS lookups when trusted IP lists
is configured.

LOCAL FIX:
n/a

PROBLEM SUMMARY

USERS AFFECTED:
All Session Initiation Protocol (SIP)
container users of IBM WebSphere
Application Server V7.0 and V8.0

PROBLEM DESCRIPTION:
SIP container performs reverse DNS
lookups when trusted IP lists is
configured.

RECOMMENDATION:
None

The SIP container is trying to compare host names. To get the
host names a reverse DNS lookup is performed.

PROBLEM CONCLUSION:
A new custom property was introduced that allows you to
disable the reverse DNS lookup.
To disable reverse DNS lookups you should do the following:
1. Enter the administrative console
2. go to Application servers > server1 > SIP container >
Custom properties
3. add new custom property:
name: ipauthenticator.check.host.name
value: false
4. press on the save button

The fix for this APAR is currently targeted for inclusion in
fix packs 7.0.0.21 and 8.0.0.2. Please refer to the
Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?&uid=swg27004980