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Guys,

 My /var/log/quantum/dhcp-agent.log file shows:

2013-03-19 20:04:48    DEBUG [quantum.agent.linux.utils] Running command:
['sudo', 'ip', 'netns', 'exec',
'qdhcp-21a39c11-03fd-4e2e-b7a0-94eee95f5f91', 'quantum-ns-metadata-proxy',
'--pid_file=/var/lib/quantum/external/pids/21a39c11-03fd-4e2e-b7a0-94eee95f5f91.pid',
'--network_id=21a39c11-03fd-4e2e-b7a0-94eee95f5f91',
'--state_path=/var/lib/quantum', '--metadata_port=80', '--debug',
'--verbose',
'--log-file=quantum-ns-metadata-proxy21a39c11-03fd-4e2e-b7a0-94eee95f5f91.log',
'--log-dir=/var/log/quantum']
2013-03-19 20:04:48    DEBUG [quantum.agent.linux.utils]
Command: ['sudo', 'ip', 'netns', 'exec',
'qdhcp-21a39c11-03fd-4e2e-b7a0-94eee95f5f91', 'quantum-ns-metadata-proxy',
'--pid_file=/var/lib/quantum/external/pids/21a39c11-03fd-4e2e-b7a0-94eee95f5f91.pid',
'--network_id=21a39c11-03fd-4e2e-b7a0-94eee95f5f91',
'--state_path=/var/lib/quantum', '--metadata_port=80', '--debug',
'--verbose',
'--log-file=quantum-ns-metadata-proxy21a39c11-03fd-4e2e-b7a0-94eee95f5f91.log',
'--log-dir=/var/log/quantum']
Exit code: 1
Stdout: ''
Stderr: 'sudo: no tty present and no askpass program specified\nSorry, try
again.\nsudo: no tty present and no askpass program specified\nSorry, try
again.\nsudo: no tty present and no askpass program specified\nSorry, try
again.\nsudo: 3 incorrect password attempts\n'
2013-03-19 20:04:48    ERROR [quantum.agent.dhcp_agent] Unable to sync
network state.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/quantum/agent/dhcp_agent.py", line
154, in sync_state
    self.refresh_dhcp_helper(network_id)
  File "/usr/lib/python2.7/dist-packages/quantum/agent/dhcp_agent.py", line
208, in refresh_dhcp_helper
    return self.enable_dhcp_helper(network_id)
  File "/usr/lib/python2.7/dist-packages/quantum/agent/dhcp_agent.py", line
187, in enable_dhcp_helper
    self.enable_isolated_metadata_proxy(network)
  File "/usr/lib/python2.7/dist-packages/quantum/agent/dhcp_agent.py", line
321, in enable_isolated_metadata_proxy
    pm.enable(callback)
  File
"/usr/lib/python2.7/dist-packages/quantum/agent/linux/external_process.py",
line 55, in enable
    ip_wrapper.netns.execute(cmd)
  File "/usr/lib/python2.7/dist-packages/quantum/agent/linux/ip_lib.py",
line 407, in execute
    check_exit_code=check_exit_code)
  File "/usr/lib/python2.7/dist-packages/quantum/agent/linux/utils.py",
line 61, in execute
    raise RuntimeError(m)
RuntimeError:
Command: ['sudo', 'ip', 'netns', 'exec',
'qdhcp-21a39c11-03fd-4e2e-b7a0-94eee95f5f91', 'quantum-ns-metadata-proxy',
'--pid_file=/var/lib/quantum/external/pids/21a39c11-03fd-4e2e-b7a0-94eee95f5f91.pid',
'--network_id=21a39c11-03fd-4e2e-b7a0-94eee95f5f91',
'--state_path=/var/lib/quantum', '--metadata_port=80', '--debug',
'--verbose',
'--log-file=quantum-ns-metadata-proxy21a39c11-03fd-4e2e-b7a0-94eee95f5f91.log',
'--log-dir=/var/log/quantum']
Exit code: 1
Stdout: ''
Stderr: 'sudo: no tty present and no askpass program specified\nSorry, try
again.\nsudo: no tty present and no askpass program specified\nSorry, try
again.\nsudo: no tty present and no askpass program specified\nSorry, try
again.\nsudo: 3 incorrect password attempts\n'

 Tips?

 It is a fresh installation to test Grizzly...

 I'm not using GRE or L3, only Quantum Single FLAT... With Folsom and
previous Grizzly my Quantum was fine...

 quantum-dhcp-agent               1:2013.1+git201303190501~precise-0ubuntu1

Tks,
Thiago
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