Comment 3 for bug 1513774

I tried to save such Public range settings.
But this action has failed again (see screen)

In Firebug Console:
500 Internal Server Error.
Not enough free IP addresses in ranges [172.16.0.2-172.16.0.2] of 'public' network

"release_versions": {"2015.1.0-8.0": {"VERSION": {"fuel-upgrade_sha": "1e894e26d4e1423a9b0d66abd6a79505f4175ff6", "fuel-createmirror_sha": "0494bcb342e3ab7b1e0612998552f1414af916f3", "shotgun_sha": "25dd78a3118267e3616df0727ce746e7dead2d67", "api": "1.0", "fuelmain_sha": "b5eb33ca7147dfda7a943a7f8f58c28e86d63992", "astute_sha": "959b06c5ef8143125efd1727d350c050a922eb12", "fuel-ostf_sha": "f169d495691ea3d40d3d6d0278265698d3f6ed14", "openstack_version": "2015.1.0-8.0", "build_id": "149", "fuelmenu_sha": "c1493ce35773f13055359cfabc589487044ee71e", "build_number": "149", "fuel-library_sha": "0040ee690445ed89cfab2a02ba865297c2a312c8", "fuel-nailgun-agent_sha": "00b4b11553c250f22c0079fb74c8b782dcb7b740", "fuel-nailgun_sha": "35dda0f36c4c5e52bc68492ab7ad154d14747eef", "fuel-agent_sha": "07560a9fc3ce5301ace04d2d3e5d68db6ee4f8d5", "production": "docker", "network-checker_sha": "a57e1d69acb5e765eb22cab0251c589cd76f51da", "feature_groups": ["mirantis"], "release": "8.0", "python-fuelclient_sha": "e685d68c1c0d0fa0491a250f07d9c3a8d0f9608c"}}}, "fuel-upgrade_sha": "1e894e26d4e1423a9b0d66abd6a79505f4175ff6", "fuel-createmirror_sha": "0494bcb342e3ab7b1e0612998552f1414af916f3", "shotgun_sha": "25dd78a3118267e3616df0727ce746e7dead2d67", "api": "1.0", "fuelmain_sha": "b5eb33ca7147dfda7a943a7f8f58c28e86d63992", "astute_sha": "959b06c5ef8143125efd1727d350c050a922eb12", "fuel-ostf_sha": "f169d495691ea3d40d3d6d0278265698d3f6ed14", "openstack_version": "2015.1.0-8.0", "build_id": "149", "fuelmenu_sha": "c1493ce35773f13055359cfabc589487044ee71e", "build_number": "149", "auth_required": true, "fuel-library_sha": "0040ee690445ed89cfab2a02ba865297c2a312c8", "fuel-nailgun-agent_sha": "00b4b11553c250f22c0079fb74c8b782dcb7b740", "fuel-nailgun_sha": "35dda0f36c4c5e52bc68492ab7ad154d14747eef", "fuel-agent_sha": "07560a9fc3ce5301ace04d2d3e5d68db6ee4f8d5", "production": "docker", "network-checker_sha": "a57e1d69acb5e765eb22cab0251c589cd76f51da", "feature_groups": ["mirantis"], "release": "8.0", "python-fuelclient_sha": "e685d68c1c0d0fa0491a250f07d9c3a8d0f9608c"