I am using Openstack with Neutron. I created a precise Image and launched instances with it. Unfortunately my instances do not get IPs by DHCP.

Here is my localrc:

DATABASE_PASSWORD=changed
RABBIT_PASSWORD=changed
SERVICE_TOKEN=changed
SERVICE_PASSWORD=changed
ADMIN_PASSWORD=changed
MYSQL_PASSWORD=changed

# VERBOSE=True
# LOGFILE=/opt/stack/data/stack.log
LOGDAYS=14
SCREEN_LOGDIR=/opt/stack/data/log
RECLONE=yes

FLOATING_RANGE=172.16.34.128/25
FIXED_RANGE=10.11.12.0/24
FIXED_NEDTWORK_SIZE=256
FLAT_INTERFACE=eth0

HOST_IP=172.16.34.10

disable_service n-net
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service q-meta
enable_service mysql
enable_service n-vol
enable_service n-cpu
enable_service rabbit
enable_service n-api
enable_service glance
enable_service neutron
enable_service n-sch
disable_service tempest

#SCHEDULER=nova.scheduler.simple.SimpleScheduler

MULTI_HOST=True

#Floodlight: http://floodlight.openflowhub.org/quantum-and-openstack/

#BS_FL_CONTROLLERS_PORT=172.16.150.26:8080

ifconfig on server:

stack@server01:~/devstack$ ifconfig
br-ex     Link encap:Ethernet  Hardware Adresse 6e:66:34:30:fe:4d  
          inet Adresse:172.24.4.225  Bcast:0.0.0.0  Maske:255.255.255.128
          inet6-Adresse: fe80::6c66:34ff:fe30:fe4d/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX packets:21 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:0 
          RX-Bytes:1314 (1.3 KB)  TX-Bytes:468 (468.0 B)

eth0      Link encap:Ethernet  Hardware Adresse 00:1e:68:9a:c9:f2  
          inet Adresse:172.16.34.10  Bcast:172.16.34.255  Maske:255.255.255.0
          inet6-Adresse: fe80::21e:68ff:fe9a:c9f2/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX packets:234913 errors:0 dropped:0 overruns:0 frame:0
          TX packets:318507 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000 
          RX-Bytes:279694404 (279.6 MB)  TX-Bytes:303031330 (303.0 MB)
          Interrupt:18 Speicher:fc5e0000-fc600000 

lo        Link encap:Lokale Schleife  
          inet Adresse:127.0.0.1  Maske:255.0.0.0
          inet6-Adresse: ::1/128 Gültigkeitsbereich:Maschine
          UP LOOPBACK RUNNING  MTU:65536  Metrik:1
          RX packets:160695 errors:0 dropped:0 overruns:0 frame:0
          TX packets:160695 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:0 
          RX-Bytes:317800471 (317.8 MB)  TX-Bytes:317800471 (317.8 MB)

qbr484cb36f-91 Link encap:Ethernet  Hardware Adresse c2:3a:45:dc:24:97  
          inet6-Adresse: fe80::8cf3:8bff:fee2:437b/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
          RX packets:35 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:0 
          RX-Bytes:8564 (8.5 KB)  TX-Bytes:468 (468.0 B)

qvb484cb36f-91 Link encap:Ethernet  Hardware Adresse c2:3a:45:dc:24:97  
          inet6-Adresse: fe80::c03a:45ff:fedc:2497/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metrik:1
          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
          TX packets:41 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000 
          RX-Bytes:468 (468.0 B)  TX-Bytes:9522 (9.5 KB)

qvo484cb36f-91 Link encap:Ethernet ...