<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt">Hi,<br><br>Please can you look up in the iptables?<br>Normally on a working openstack host the packets comming in the filter table in the input chain are directed to the nova-network-INPUT which has a rule to accept dhcp packets.<br>On my setup is something like:<span><br>-A INPUT -j nova-network-INPUT<br></span><div>.</div><div>.</div><div>.</div><div>-A nova-network-INPUT -i br100 -p udp -m udp --dport 67 -j ACCEPT</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">So I think you have to look somewhere else for your issue.</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color:
rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Regards,</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Gabriel <br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> David Kang <dkang@isi.edu><br> <b><span style="font-weight: bold;">To:</span></b> "openstack@lists.launchpad.net (openstack@lists.launchpad.net)" <openstack@lists.launchpad.net> <br>
<b><span style="font-weight: bold;">Sent:</span></b> Tuesday, July 23, 2013 7:22 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [Openstack] [Quantum/Neutron] VM cannot get IP address from DHCP
server<br> </font> </div> <div class="y_msg_container"><br>
<br> Hi,<br><br> We are running OpenStack Folsom on CentOS 6.4.<br>Quantum-linuxbridge-agent is used.<br>By default, the Quantum node has the following entries in its /etc/sysconfig/iptables file.<br><br>-A INPUT -j REJECT --reject-with icmp-host-prohibited<br>-A FORWARD -j REJECT --reject-with icmp-host-prohibited<br><br> With those two lines, VM cannot get IP address from the DHCP server running on the Quantum node.<br>More specifically, the first line prevents a VM from getting IP address from DHCP server.<br>The second line prevents a VM from talking to other VMs and external worlds.<br>Is there a better way to make the Quantum network work well<br>than just commenting them out?<br><br> I'll appreciate your help.<br><br> David<br><br>-- <br>----------------------<br>Dr. Dong-In "David" Kang<br>Computer Scientist<br>USC/ISI<br><br>_______________________________________________<br>Mailing list: <a href="https://launchpad.net/~openstack"
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