<div dir="ltr">Thanks Joe! I was able to get this to work by enabling 'option 82' on my switch for the dhcp relay after being pointed to this thread for dnsmasq:<div><a href="http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2011q3/005244.html">http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2011q3/005244.html</a><br>
</div><div><br></div><div>Specifically <span style="font-family:arial,sans-serif;font-size:13px"> "dhcp-relay </span><span class="" style="font-family:arial,sans-serif;font-size:13px">option</span><span style="font-family:arial,sans-serif;font-size:13px"> </span><span class="" style="font-family:arial,sans-serif;font-size:13px">82</span><span style="font-family:arial,sans-serif;font-size:13px"> replace mac" worked for me. </span></div>
<div><span style="font-family:arial,sans-serif;font-size:13px"><br></span></div><div><span style="font-family:arial,sans-serif;font-size:13px">Matt</span></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Tue, Apr 1, 2014 at 12:32 PM, Joe Topjian <span dir="ltr"><<a href="mailto:joe@topjian.net" target="_blank">joe@topjian.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Not to pass the buck, but are you able to get this type of scenario working outside of OpenStack? For example: setting up your own dnsmasq service on vlan 104 and either a bare-metal server or vanilla kvm vm on vlan 103?<div>

<br></div><div>This would at least confirm whether the problem is in nova or dnsmasq itself.</div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Tue, Apr 1, 2014 at 11:55 AM, Matt Rae <span dir="ltr"><<a href="mailto:mattrae@gmail.com" target="_blank">mattrae@gmail.com</a>></span> wrote:<br>

</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr">Hi I am trying to test a scenario where instances are not on the same vlan as nova-network. Right now the instances are failing to dhcp. I'm using nova-network with the flatdhcpmanager. I've configured a ip helper-address on the instance vlan that forwards dhcp requests to nova-network [1]. With dhcpdump I see the dhcpdiscover is making it to the nova-network node, but dnsmasq is not responding to the request [2]. When the instance is on the same vlan as nova-network, dnsmasq responds[3].<div>



<br></div><div>Anybody have ideas of what might be going wrong? My current thought is that maybe dnsmasq requires some additional option to respond to a request originating from a different subnet. Here are dnsmasq processes running, the networks I created and network configuration [4]. </div>


<div><br></div><div>Matt</div><div><br></div><div>[1]</div><div><div><br></div><div>ip routing</div><div>vlan 103</div><div>   name "esx"</div><div>   untagged 13-15,20</div><div>   tagged 25</div><div>   ip address 192.168.3.1 255.255.255.0</div>


<div>   ip helper-address 192.168.2.3</div><div>   exit</div><div>vlan 104</div><div>   name "novanetwork"</div><div>   untagged 19,21-22</div><div>   ip address 192.168.2.1 255.255.255.0</div><div>   exit</div>


</div><div><br></div><div><br></div><div>[2]</div><div><br></div><div><div>$ sudo dhcpdump -i br100</div><div><br></div><div>  TIME: 2014-04-01 17:46:38.806</div><div>    IP: 0.0.0.0 (e0:0:0:f:fa:60) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div>


<div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div><div>  HOPS: 0</div><div>   XID: b004cb38</div><div>  SECS: 0</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div>


<div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: e0:00:00:0f:fa:60:00:00:00:00:00:00:00:00:00:00</div><div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         1 (DHCPDISCOVER)</div>


<div>OPTION:  12 (  7) Host name                 monarch</div><div>OPTION:  55 ( 17) Parameter Request List      1 (Subnet mask)</div><div><span style="white-space:pre-wrap">                                    </span>     28 (Broadcast address)</div>
<div><span style="white-space:pre-wrap">                                  </span>      2 (Time offset)</div><div><span style="white-space:pre-wrap">                                    </span>      3 (Routers)</div><div><span style="white-space:pre-wrap">                                        </span>     15 (Domainname)</div>


<div><span style="white-space:pre-wrap">                                  </span>      6 (DNS server)</div><div><span style="white-space:pre-wrap">                                     </span>    119 (Domain Search)</div><div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div>


<div><span style="white-space:pre-wrap">                                  </span>     44 (NetBIOS name server)</div><div><span style="white-space:pre-wrap">                                    </span>     47 (NetBIOS scope)</div><div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div>


<div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div><div><span style="white-space:pre-wrap">                                 </span>     42 (NTP servers)</div><div><span style="white-space:pre-wrap">                                    </span>    121 (Classless Static Route)</div>


<div><span style="white-space:pre-wrap">                                  </span>    249 (MSFT - Classless route)</div><div><span style="white-space:pre-wrap">                                 </span>    252 (MSFT - WinSock Proxy Auto Detect)</div><div><span style="white-space:pre-wrap">                                       </span>     42 (NTP servers)</div>


<div><span style="white-space:pre-wrap">                                  </span>    </div><div>---------------------------------------------------------------------------</div><div><br></div><div>  TIME: 2014-04-01 17:46:40.596</div><div>    IP: 0.0.0.0 (e0:0:0:f:fa:60) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div>


<div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div><div>  HOPS: 0</div><div>   XID: b004cb38</div><div>  SECS: 3</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div>


<div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: e0:00:00:0f:fa:60:00:00:00:00:00:00:00:00:00:00</div><div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         1 (DHCPDISCOVER)</div>


<div>OPTION:  12 (  7) Host name                 monarch</div><div>OPTION:  55 ( 17) Parameter Request List      1 (Subnet mask)</div><div><span style="white-space:pre-wrap">                                    </span>     28 (Broadcast address)</div>
<div><span style="white-space:pre-wrap">                                  </span>      2 (Time offset)</div><div><span style="white-space:pre-wrap">                                    </span>      3 (Routers)</div><div><span style="white-space:pre-wrap">                                        </span>     15 (Domainname)</div>


<div><span style="white-space:pre-wrap">                                  </span>      6 (DNS server)</div><div><span style="white-space:pre-wrap">                                     </span>    119 (Domain Search)</div><div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div>


<div><span style="white-space:pre-wrap">                                  </span>     44 (NetBIOS name server)</div><div><span style="white-space:pre-wrap">                                    </span>     47 (NetBIOS scope)</div><div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div>


<div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div><div><span style="white-space:pre-wrap">                                 </span>     42 (NTP servers)</div><div><span style="white-space:pre-wrap">                                    </span>    121 (Classless Static Route)</div>


<div><span style="white-space:pre-wrap">                                  </span>    249 (MSFT - Classless route)</div><div><span style="white-space:pre-wrap">                                 </span>    252 (MSFT - WinSock Proxy Auto Detect)</div><div><span style="white-space:pre-wrap">                                       </span>     42 (NTP servers)</div>


<div><span style="white-space:pre-wrap">                                  </span>    </div><div>---------------------------------------------------------------------------</div><div><br></div><div>  TIME: 2014-04-01 17:46:44.414</div><div>    IP: 0.0.0.0 (e0:0:0:f:fa:60) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div>


<div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div><div>  HOPS: 0</div><div>   XID: b004cb38</div><div>  SECS: 6</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div>


<div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: e0:00:00:0f:fa:60:00:00:00:00:00:00:00:00:00:00</div><div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         1 (DHCPDISCOVER)</div>


<div>OPTION:  12 (  7) Host name                 monarch</div><div>OPTION:  55 ( 17) Parameter Request List      1 (Subnet mask)</div><div><span style="white-space:pre-wrap">                                    </span>     28 (Broadcast address)</div>
<div><span style="white-space:pre-wrap">                                  </span>      2 (Time offset)</div><div><span style="white-space:pre-wrap">                                    </span>      3 (Routers)</div><div><span style="white-space:pre-wrap">                                        </span>     15 (Domainname)</div>


<div><span style="white-space:pre-wrap">                                  </span>      6 (DNS server)</div><div><span style="white-space:pre-wrap">                                     </span>    119 (Domain Search)</div><div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div>


<div><span style="white-space:pre-wrap">                                  </span>     44 (NetBIOS name server)</div><div><span style="white-space:pre-wrap">                                    </span>     47 (NetBIOS scope)</div><div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div>


<div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div><div><span style="white-space:pre-wrap">                                 </span>     42 (NTP servers)</div><div><span style="white-space:pre-wrap">                                    </span>    121 (Classless Static Route)</div>


<div><span style="white-space:pre-wrap">                                  </span>    249 (MSFT - Classless route)</div><div><span style="white-space:pre-wrap">                                 </span>    252 (MSFT - WinSock Proxy Auto Detect)</div><div><span style="white-space:pre-wrap">                                       </span>     42 (NTP servers)</div>


<div><span style="white-space:pre-wrap">                                  </span>    </div><div>---------------------------------------------------------------------------</div><div><br></div><div>  TIME: 2014-04-01 17:46:50.463</div><div>    IP: 0.0.0.0 (e0:0:0:f:fa:60) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div>


<div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div><div>  HOPS: 0</div><div>   XID: b004cb38</div><div>  SECS: 12</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div>


<div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: e0:00:00:0f:fa:60:00:00:00:00:00:00:00:00:00:00</div><div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         1 (DHCPDISCOVER)</div>


<div>OPTION:  12 (  7) Host name                 monarch</div><div>OPTION:  55 ( 17) Parameter Request List      1 (Subnet mask)</div><div><span style="white-space:pre-wrap">                                    </span>     28 (Broadcast address)</div>
<div><span style="white-space:pre-wrap">                                  </span>      2 (Time offset)</div><div><span style="white-space:pre-wrap">                                    </span>      3 (Routers)</div><div><span style="white-space:pre-wrap">                                        </span>     15 (Domainname)</div>


<div><span style="white-space:pre-wrap">                                  </span>      6 (DNS server)</div><div><span style="white-space:pre-wrap">                                     </span>    119 (Domain Search)</div><div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div>


<div><span style="white-space:pre-wrap">                                  </span>     44 (NetBIOS name server)</div><div><span style="white-space:pre-wrap">                                    </span>     47 (NetBIOS scope)</div><div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div>


<div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div><div><span style="white-space:pre-wrap">                                 </span>     42 (NTP servers)</div><div><span style="white-space:pre-wrap">                                    </span>    121 (Classless Static Route)</div>


<div><span style="white-space:pre-wrap">                                  </span>    249 (MSFT - Classless route)</div><div><span style="white-space:pre-wrap">                                 </span>    252 (MSFT - WinSock Proxy Auto Detect)</div><div><span style="white-space:pre-wrap">                                       </span>     42 (NTP servers)</div>


<div><span style="white-space:pre-wrap">                                  </span>    </div><div>---------------------------------------------------------------------------</div><div><br></div><div>  TIME: 2014-04-01 17:46:57.693</div><div>    IP: 0.0.0.0 (e0:0:0:f:fa:60) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div>


<div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div><div>  HOPS: 0</div><div>   XID: b004cb38</div><div>  SECS: 20</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div>


<div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: e0:00:00:0f:fa:60:00:00:00:00:00:00:00:00:00:00</div><div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         1 (DHCPDISCOVER)</div>


<div>OPTION:  12 (  7) Host name                 monarch</div><div>OPTION:  55 ( 17) Parameter Request List      1 (Subnet mask)</div><div><span style="white-space:pre-wrap">                                    </span>     28 (Broadcast address)</div>
<div><span style="white-space:pre-wrap">                                  </span>      2 (Time offset)</div><div><span style="white-space:pre-wrap">                                    </span>      3 (Routers)</div><div><span style="white-space:pre-wrap">                                        </span>     15 (Domainname)</div>


<div><span style="white-space:pre-wrap">                                  </span>      6 (DNS server)</div><div><span style="white-space:pre-wrap">                                     </span>    119 (Domain Search)</div><div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div>


<div><span style="white-space:pre-wrap">                                  </span>     44 (NetBIOS name server)</div><div><span style="white-space:pre-wrap">                                    </span>     47 (NetBIOS scope)</div><div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div>


<div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div><div><span style="white-space:pre-wrap">                                 </span>     42 (NTP servers)</div><div><span style="white-space:pre-wrap">                                    </span>    121 (Classless Static Route)</div>


<div><span style="white-space:pre-wrap">                                  </span>    249 (MSFT - Classless route)</div><div><span style="white-space:pre-wrap">                                 </span>    252 (MSFT - WinSock Proxy Auto Detect)</div><div><span style="white-space:pre-wrap">                                       </span>     42 (NTP servers)</div>


<div><span style="white-space:pre-wrap">                                  </span>    </div><div>---------------------------------------------------------------------------</div></div><div><br></div><div><br></div><div><br></div><div>[3]</div><div>
<br></div><div><div>  TIME: 2014-03-28 01:32:25.174</div><div>    IP: 0.0.0.0 (fa:16:3e:b1:e1:16) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div><div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div>


<div>  HOPS: 0</div><div>   XID: e1c7ef5b</div><div>  SECS: 0</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div><div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: fa:16:3e:b1:e1:16:00:00:00:00:00:00:00:00:00:00</div>


<div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         1 (DHCPDISCOVER)</div><div>OPTION:  50 (  4) Request IP address        10.34.104.76</div><div>OPTION:  55 ( 13) Parameter Request List      1 (Subnet mask)</div>


<div><span style="white-space:pre-wrap">                                  </span>     28 (Broadcast address)</div><div><span style="white-space:pre-wrap">                                      </span>      2 (Time offset)</div><div><span style="white-space:pre-wrap">                                    </span>      3 (Routers)</div>


<div><span style="white-space:pre-wrap">                                  </span>     15 (Domainname)</div><div><span style="white-space:pre-wrap">                                     </span>      6 (DNS server)</div><div><span style="white-space:pre-wrap">                                     </span>    119 (Domain Search)</div>


<div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div><div><span style="white-space:pre-wrap">                                      </span>     44 (NetBIOS name server)</div><div><span style="white-space:pre-wrap">                                    </span>     47 (NetBIOS scope)</div>


<div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div><div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div><div><span style="white-space:pre-wrap">                                 </span>     42 (NTP servers)</div>


<div><span style="white-space:pre-wrap">                                  </span>    </div><div>---------------------------------------------------------------------------</div><div><br></div><div>  TIME: 2014-03-28 01:32:25.177</div><div>    IP: 192.168.2.3 (52:54:0:7b:ae:bc) > 192.168.2.2 (fa:16:3e:b1:e1:16)</div>


<div>    OP: 2 (BOOTPREPLY)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div><div>  HOPS: 0</div><div>   XID: e1c7ef5b</div><div>  SECS: 0</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 192.168.2.2</div>


<div>SIADDR: 192.168.2.3</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: fa:16:3e:b1:e1:16:00:00:00:00:00:00:00:00:00:00</div><div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         2 (DHCPOFFER)</div>


<div>OPTION:  54 (  4) Server identifier         192.168.2.3</div><div>OPTION:  51 (  4) IP address leasetime      120 (2m)</div><div>OPTION:  58 (  4) T1                        60 (60s)</div><div>OPTION:  59 (  4) T2                        105 (1m45s)</div>


<div>OPTION:   1 (  4) Subnet mask               255.255.255.0</div><div>OPTION:  28 (  4) Broadcast address         192.168.2.255</div><div>OPTION:   3 (  4) Routers                   192.168.2.3</div><div>OPTION:   6 (  4) DNS server                192.168.2.3</div>


<div>OPTION:  15 (  9) Domainname                novalocal</div><div>OPTION:  12 (  3) Host name                 testinstance</div><div>---------------------------------------------------------------------------</div><div>


<br></div><div>  TIME: 2014-03-28 01:32:25.177</div><div>    IP: 0.0.0.0 (fa:16:3e:b1:e1:16) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)</div><div>    OP: 1 (BOOTPREQUEST)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div>


<div>  HOPS: 0</div><div>   XID: e1c7ef5b</div><div>  SECS: 0</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 0.0.0.0</div><div>SIADDR: 0.0.0.0</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: fa:16:3e:b1:e1:16:00:00:00:00:00:00:00:00:00:00</div>


<div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         3 (DHCPREQUEST)</div><div>OPTION:  54 (  4) Server identifier         192.168.2.3</div><div>OPTION:  50 (  4) Request IP address        192.168.2.2</div>


<div>OPTION:  55 ( 13) Parameter Request List      1 (Subnet mask)</div><div><span style="white-space:pre-wrap">                                      </span>     28 (Broadcast address)</div><div><span style="white-space:pre-wrap">                                      </span>      2 (Time offset)</div>


<div><span style="white-space:pre-wrap">                                  </span>      3 (Routers)</div><div><span style="white-space:pre-wrap">                                        </span>     15 (Domainname)</div><div><span style="white-space:pre-wrap">                                     </span>      6 (DNS server)</div>


<div><span style="white-space:pre-wrap">                                  </span>    119 (Domain Search)</div><div><span style="white-space:pre-wrap">                                  </span>     12 (Host name)</div><div><span style="white-space:pre-wrap">                                      </span>     44 (NetBIOS name server)</div>


<div><span style="white-space:pre-wrap">                                  </span>     47 (NetBIOS scope)</div><div><span style="white-space:pre-wrap">                                  </span>     26 (Interface MTU)</div><div><span style="white-space:pre-wrap">                                  </span>    121 (Classless Static Route)</div>


<div><span style="white-space:pre-wrap">                                  </span>     42 (NTP servers)</div><div><span style="white-space:pre-wrap">                                    </span>    </div><div>---------------------------------------------------------------------------</div>


<div><br></div><div>  TIME: 2014-03-28 01:32:25.181</div><div>    IP: 192.168.2.3 (52:54:0:7b:ae:bc) > 192.168.2.2 (fa:16:3e:b1:e1:16)</div><div>    OP: 2 (BOOTPREPLY)</div><div> HTYPE: 1 (Ethernet)</div><div>  HLEN: 6</div>


<div>  HOPS: 0</div><div>   XID: e1c7ef5b</div><div>  SECS: 0</div><div> FLAGS: 0</div><div>CIADDR: 0.0.0.0</div><div>YIADDR: 192.168.2.2</div><div>SIADDR: 192.168.2.3</div><div>GIADDR: 0.0.0.0</div><div>CHADDR: fa:16:3e:b1:e1:16:00:00:00:00:00:00:00:00:00:00</div>


<div> SNAME: .</div><div> FNAME: .</div><div>OPTION:  53 (  1) DHCP message type         5 (DHCPACK)</div><div>OPTION:  54 (  4) Server identifier         192.168.2.3</div><div>OPTION:  51 (  4) IP address leasetime      120 (2m)</div>


<div>OPTION:  58 (  4) T1                        60 (60s)</div><div>OPTION:  59 (  4) T2                        105 (1m45s)</div><div>OPTION:   1 (  4) Subnet mask               255.255.255.0</div><div>OPTION:  28 (  4) Broadcast address         192.168.2.255</div>


<div>OPTION:   3 (  4) Routers                   192.168.2.3</div><div>OPTION:   6 (  4) DNS server                192.168.2.3</div><div>OPTION:  15 (  9) Domainname                novalocal</div><div>OPTION:  12 (  3) Host name                 testinstance</div>


<div>---------------------------------------------------------------------------</div></div><div><br></div><div><br></div><div>[4]</div><div><br></div><div><div>sudo nova-manage network create --label=private --fixed_range_v4=<a href="http://192.168.3.0/24" target="_blank">192.168.3.0/24</a> --num_networks=1 --network_size=256 --multi_host=T --bridge_interface=eth1 --bridge=br100 --dns1=8.8.8.8</div>


</div><div><br></div><div><div>$ ps aux | grep dnsmasq</div><div>107       2067  0.0  0.0  25976   948 ?        S    17:21   0:00 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf</div><div>nobody    2440  0.0  0.0  27544  1036 ?        S    17:21   0:00 /usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= --pid-file=/var/lib/nova/networks/nova-br100.pid --listen-address=192.168.3.3 --except-interface=lo --dhcp-range=set:private,192.168.3.2,static,255.255.255.0,120s --dhcp-lease-max=256 --dhcp-hostsfile=/var/lib/nova/networks/nova-br100.conf --dhcp-script=/usr/bin/nova-dhcpbridge --leasefile-ro --domain=novalocal --no-hosts --addn-hosts=/var/lib/nova/networks/nova-br100.hosts</div>


<div>root      2441  0.0  0.0  27516   244 ?        S    17:21   0:00 /usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= --pid-file=/var/lib/nova/networks/nova-br100.pid --listen-address=192.168.3.3 --except-interface=lo --dhcp-range=set:private,192.168.3.2,static,255.255.255.0,120s --dhcp-lease-max=256 --dhcp-hostsfile=/var/lib/nova/networks/nova-br100.conf --dhcp-script=/usr/bin/nova-dhcpbridge --leasefile-ro --domain=novalocal --no-hosts --addn-hosts=/var/lib/nova/networks/nova-br100.hosts</div>


<div>ubuntu    3148  0.0  0.0   8112   896 pts/0    S+   17:48   0:00 grep --color=auto dnsmasq</div></div><div><br></div><div><br></div><div><div>$ ip addr</div><div>1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN </div>


<div>    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00</div><div>    inet <a href="http://127.0.0.1/8" target="_blank">127.0.0.1/8</a> scope host lo</div><div>    inet <a href="http://169.254.169.254/32" target="_blank">169.254.169.254/32</a> scope link lo</div>


<div>    inet6 ::1/128 scope host </div><div>       valid_lft forever preferred_lft forever</div><div>2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP qlen 1000</div><div>    link/ether 52:54:00:8c:e5:35 brd ff:ff:ff:ff:ff:ff</div>


<div>    inet6 fe80::5054:ff:fe8c:e535/64 scope link </div><div>       valid_lft forever preferred_lft forever</div><div>3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br100 state UP qlen 1000</div>


<div>    link/ether 52:54:00:7b:ae:bc brd ff:ff:ff:ff:ff:ff</div><div>    inet6 fe80::5054:ff:fe7b:aebc/64 scope link </div><div>       valid_lft forever preferred_lft forever</div><div>4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP </div>


<div>    link/ether 52:54:00:8c:e5:35 brd ff:ff:ff:ff:ff:ff</div><div>    inet <a href="http://192.168.1.23/24" target="_blank">192.168.1.23/24</a> brd 192.168.1.255 scope global br0</div><div>    inet6 fe80::5054:ff:fe8c:e535/64 scope link </div>


<div>       valid_lft forever preferred_lft forever</div><div>5: br100: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP </div><div>    link/ether 52:54:00:7b:ae:bc brd ff:ff:ff:ff:ff:ff</div><div>

    inet <a href="http://192.168.3.3/24" target="_blank">192.168.3.3/24</a> brd 192.168.3.255 scope global br100</div>
<div>    inet6 fe80::d44e:e4ff:fe32:e4d/64 scope link </div><div>       valid_lft forever preferred_lft forever</div><div>7: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN </div><div>

    link/ether fa:2c:a4:32:84:e7 brd ff:ff:ff:ff:ff:ff</div>
<div>    inet <a href="http://192.168.122.1/24" target="_blank">192.168.122.1/24</a> brd 192.168.122.255 scope global virbr0</div></div><div><br></div><div><br></div></div>
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