PM51915: SIP PROXY SHOULD USE DEFAULT PORT NUMBERS RATHER THAN EPHEMERAL PORTS FOR RECONNECT SCENARIOS

Fixes are available

APAR status

Closed as program error.

Error description

Session Initiation Protocol (SIP) Proxy should use default port
numbers rather than ephemeral ports for reconnect scenarios

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server Session Initiation Protocol (SIP)    *
*                  Proxy                                       *
****************************************************************
* PROBLEM DESCRIPTION: SIP Proxy should use default SIP port   *
*                      numbers rather than ephemeral port      *
*                      numbers for reconnect scenarios.        *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
If a SIP Proxy receives a SIP response from the Application
Server, and it does not have an existing TCP/TLS
client connection, it creates a connection to the client.   It
currently uses the port specified in the VIA header to
reconnect to.  If the port listed in the VIA is invalid, the
connection will fail.

Problem conclusion

If a reconnect has to occur, we will check the port in the VIA
header.   If it is above the maximum listed in the new custom
property, we will use the default SIP ports (5060 and 5061).
 To enable this fix, in the administrative console, go to the
"WebSphere proxy servers > proxy > SIP proxy settings > Custom
properties page.  Add a custom property with name
"maxViaHeaderPortNumber" and set the value to the maximum
valid port number.


The fix for this APAR is currently targeted for inclusion in
fix pack 7.0.0.23 and 8.0.0.3.  Please refer to the Recommended
Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

Comments

APAR Information

APAR number
PM51915
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-11-09
Closed date
2011-12-21
Last modified date
2011-12-21

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R700 PSY
UP
R800 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 October 2021

Tips

PM51915: SIP PROXY SHOULD USE DEFAULT PORT NUMBERS RATHER THAN EPHEMERAL PORTS FOR RECONNECT SCENARIOS

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

R700 PSY

R800 PSY

Document Information

Share your feedback

Need support?