Description of problem:
I was installing cumin and playing little bit with IPv6 (see Bug 674379).

Verify that qpidd is listening on IPv6 (both RHEL5 and RHEL6)
# netstat -tnl | grep :5672
tcp        0      0 0.0.0.0:5672                0.0.0.0:*                   LISTEN      
tcp        0      0 :::5672                     :::*                        LISTEN    

Check what address has localhost6 (both RHEL5 and RHEL6)
# getent hosts localhost6
::1             localhost localhost.localdomain localhost6 localhost6.localdomain6

Use in all config files 'localhost6' keyword.

Check qpidd connections (both RHEL5 and RHEL6)
# qpid-stat --connections --sort-by=cproc localhost6
Connections
  client-addr             cproc            cpid  auth            connected  idle  msgIn  msgOut
  ===============================================================================================
  [::1]:5672-[::1]:48526  wallaby-agent    1667  anonymous@QPID  15m 6s     20s   2.71k  1.11k
  [::1]:5672-[::1]:48525  sesame           1516  cumin@QPID      15m 8s     0s     880    447
  [::1]:5672-[::1]:48537  qpid-stat        1970  anonymous@QPID  1s         0s     287    372
  [::1]:5672-[::1]:48527  cumin-web        1436  cumin@QPID      15m 5s     0s     681   1.59k
  [::1]:5672-[::1]:48528  cumin-web        1436  cumin@QPID      15m 5s     0s    3.15k  5.69k
  [::1]:5672-[::1]:48519  cumin-data       1440  cumin@QPID      15m 9s     0s     883   2.17k
  [::1]:5672-[::1]:48518  cumin-data       1438  cumin@QPID      15m 9s     0s     787   1.89k
  [::1]:5672-[::1]:48520  cumin-data       1439  cumin@QPID      15m 9s     0s     897   2.13k
  [::1]:5672-[::1]:48523  cumin-data       1437  cumin@QPID      15m 9s     0s     879   2.07k
  [::1]:5672-[::1]:48524  cumin-data       1441  cumin@QPID      15m 9s     0s    1.93k  5.27k
  [::1]:5672-[::1]:48532  condor_startd    1784  cumin@QPID      15m 3s     0s     519    375
  [::1]:5672-[::1]:48533  condor_schedd    1783  cumin@QPID      15m 2s     0s     674    429
  [::1]:5672-[::1]:48531  condor_negotiat  1782  cumin@QPID      15m 3s     0s     513    373
  [::1]:5672-[::1]:48529  condor_master    1767  cumin@QPID      15m 4s     0s     699    435
  [::1]:5672-[::1]:48534  condor_configd   1785  anonymous@QPID  15m 2s     0s     371    648
  [::1]:5672-[::1]:48530  condor_collecto  1779  cumin@QPID      15m 3s     0s     591    399

As you can see all are through IPv6. Try to submit job from Cumin with QMF - OK.

Version-Release number of selected component (if applicable):
RHEL5
cumin-0.1.5192-1.el5.noarch
qpid-cpp-server-0.14-5.el5.i386

RHEL6
cumin-0.1.5192-1.el6.noarch
qpid-cpp-server-0.14-1.el6.i686

How reproducible:
100%

Steps to Reproduce:
1. netstat -tnl | grep :5672
2. getent hosts localhost6
3. Use in all config files 'localhost6' keyword.
4. qpid-stat --connections --sort-by=cproc localhost6
  
Actual results:
submit job from Cumin with QMF works

Expected results:
selected scenarios works

Additional info: