Comment 1 for bug 1626536

http://logs.openstack.org/55/374055/2/check/gate-horizon-dsvm-integration-deprecated-ubuntu-xenial/ac0ba5c/logs/screen-q-svc.txt.gz#_2016-09-21_12_23_44_530

2016-09-21 12:23:44.530 16396 DEBUG neutron.wsgi [-] (16396) accepted ('127.0.0.1', 44374) server /usr/local/lib/python2.7/dist-packages/eventlet/wsgi.py:868
2016-09-21 12:23:44.535 16396 DEBUG neutron.api.v2.base [req-46286dac-9862-4a24-90ab-7298b8bac79c demo -] Request body: {u'floatingip': {u'fixed_ip_address': u'fdc2:4cdd:74c2:0:f816:3eff:fe7b:f95e', u'port_id': u'1596ddb5-d3f7-4f54-892d-bdcd7db08b0e'}} prepare_request_body /opt/stack/new/neutron/neutron/api/v2/base.py:684
2016-09-21 12:23:44.656 16396 INFO neutron.api.v2.resource [req-46286dac-9862-4a24-90ab-7298b8bac79c demo -] update failed (client error): The server could not comply with the request since it is either malformed or otherwise incorrect.
2016-09-21 12:23:44.657 16396 INFO neutron.wsgi [req-46286dac-9862-4a24-90ab-7298b8bac79c demo -] 127.0.0.1 - - [21/Sep/2016 12:23:44] "PUT //v2.0/floatingips/53b4dd14-8224-4797-95ed-91fca34fd4c0.json HTTP/1.1" 400 417 0.126372

IPv6 address u'fdc2:4cdd:74c2:0:f816:3eff:fe7b:f95e was specified in the request body.
IPv4 address should be specified.