Fixes are available
APAR status
Closed as program error.
Error description
DataPower DNS Round Robin algorithm will not honor TCP based response from DNS server which will cause DNS response to fail on DataPower, hence DNS resolution fails.
Local fix
Use First Alive algorithm instead of Round Robin.
Problem summary
DataPower user who uses Round robin as the Load balancing algorithm in Configure DNS Settings might see DNS query failures. The following error message might be observed if multiple IP addresses replied in the DNS query response for Round robin DNS: Cannot resolve host name '(the Full-Qulified-Domain-Name)' after (number of) ms.
Problem conclusion
Fix is available in 7.5.0.16, 7.5.1.15, 7.5.2.15, 7.6.0.8 and 7.7.1.2 For a list of the latest fix packs available, please see: http://www-01.ibm.com/support/docview.wss?uid=swg21237631
Temporary fix
Comments
APAR Information
APAR number
IT25130
Reported component name
DATAPOWER
Reported component ID
DP1234567
Reported release
720
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-05-22
Closed date
2018-07-16
Last modified date
2018-07-25
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
DATAPOWER
Fixed component ID
DP1234567
Applicable component levels
R750 PSY
UP
R751 PSY
UP
R752 PSY
UP
R760 PSY
UP
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Document Information
Modified date:
28 September 2021