<div class="__aliyun_email_body_block"><div style="line-height:1.7;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;"><div style="clear:both;"> Hi, Lilong</div><div style="clear:both;"> You should have two solutions,</div><div style="clear:both;"> 1. Add a routine path to <span style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:#ffffff;">172.16.100.</span>0/24 in your external router (<span style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:#ffffff;">192.168.3.0/24), it's very clear the outgoing icmp can not find the way back.</span></div><div style="clear:both;"><span style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:#ffffff;"> 2. Add NAT rule for <span style="margin:.0px;padding:.0px;outline:.0px;border:.0px;border-image:none;text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:#ffffff;">172.16.100.</span><span style="text-align:left;color:#000000;text-transform:none;text-indent:.0px;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;font-style:normal;font-variant:normal;font-weight:400;text-decoration:none;display:inline;float:none;background-color:#ffffff;">0/24</span> in host, controller-0?</span></div><div style="clear:both;"> </div><div style="clear:both;"> Best Regard</div><div style="clear:both;"><br ></div><blockquote style="color:#000000;font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;margin-top:.0px;margin-right:.0px;margin-bottom:.0px;"><div style="clear:both;">------------------------------------------------------------------</div><div style="clear:both;">发件人：lilong-neu <lilong-neu@neusoft.com></div><div style="clear:both;">发送时间：2019年10月30日(星期三) 10:50</div><div style="clear:both;">收件人：钱江 <qianjiang@baicells.com>; starlingx-discuss <starlingx-discuss@lists.starlingx.io></div><div style="clear:both;">抄 送："Xie, Cindy" <cindy.xie@intel.com>; 付勇 <fuyong@neusoft.com>; zhaos <zhaos@neusoft.com>; "Lin, Shuicheng" <shuicheng.lin@intel.com>; "Sun, Austin" <austin.sun@intel.com>; 张志国 <zhangzhg@neusoft.com></div><div style="clear:both;">主 题：Re: 回复：[Starlingx-discuss] 【StarlingX】Regarding external networking issue</div><div style="clear:both;"><br ></div>
<p style="margin-top:14.0px;margin-bottom:14.0px;">Hi Qianjiang<br >
<br >
We have create the external subnet and Router.<br >
the external subnet is ext_net.<br >
<img alt="" height="146" src="cid:__aliyun157243206782453321" width="566" style="vertical-align:bottom;"><br >
<br >
the Router is configured as below<br >
<img alt="" height="184" src="cid:__aliyun157243206782453322" width="566" style="vertical-align:bottom;"></p>
<p style="margin-top:14.0px;margin-bottom:14.0px;">the networking topology is as below</p>
<p style="margin-top:14.0px;margin-bottom:14.0px;"><img alt="" height="260" src="cid:__aliyun157243206782453323" width="576" style="vertical-align:bottom;"><br >
the CMD "ip netns list" is as below<br >
<img alt="" src="cid:__aliyun157243206782453324" style="vertical-align:bottom;"></p>
<p style="margin-top:14.0px;margin-bottom:14.0px;">the external networking is 192.168.3.0/24, gateway is
192.168.3.3. it is our real networking for access internet. <br >
from 172.16.100.188(cirros-vm1) ping external subnet ext_<a href="net:192.168.3.137" target="_blank">net:192.168.3.137</a> OK,<br >
from 172.16.100.188(cirros-vm1) ping 172.16.101.201 ((cirros-vm3))
is OK.<br >
from 172.16.100.188(cirros-vm1) ping 10.10.10.3 (controller-0) is
not OK.<br >
from 172.16.100.188(cirros-vm1) ping 192.168.3.106 is not OK.<br >
from 172.16.100.188(cirros-vm1) ping 8.8.8.8 is not OK.<br >
from 10.10.10.3 (controller-0) ping 8.8.8.8 is OK.<br >
from 10.10.10.3 (controller-0) ping 192.168.3.106 is OK.</p>
<p style="margin-top:14.0px;margin-bottom:14.0px;">But we can't connect external networking yet from cirros
instance, we will refer to</p>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;font-style:italic;">>>>>><br >
</span></p>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;font-style:italic;">There
are some check point :</span></p>
<i >
</i><i >
</i>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;font-style:italic;">Which
NIC ext-net is connected ?
</span></p>
<i >
</i>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;font-style:italic;">Which
bridge this NIC is connected to on host ?
</span></p>
<i >
</i>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;font-style:italic;">Does
this bridge config ip address (should be 192.168.3.1)?</span></p>
<i >
</i>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;font-style:italic;">And
have you config any security group to enable icmp ?
</span></p>
<i >
</i>
<p class="MsoNormal"><span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;">Thanks.</span></p>
<span style="color:windowtext;font-family:Calibri,sans-serif;font-size:15.0px;">BR<br >
Austin Sun. </span>
<p style="margin-top:14.0px;margin-bottom:14.0px;"><i style="font-family:Calibri,sans-serif;">>>>></i><br >
</p>
<p style="margin-top:14.0px;margin-bottom:14.0px;">we will share our progress if any result.<br >
</p>
<p style="margin-top:14.0px;margin-bottom:14.0px;">Thanks&Best Regards</p>
<p style="margin-top:14.0px;margin-bottom:14.0px;">Long<br >
</p>
<div class="moz-cite-prefix">On 2019/10/29 下午9:26, Xie, Cindy wrote:<br >
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span style="font-family:Calibri,sans-serif;font-size:15.0px;">Thanks
Qian Jiang,</span></p>
<p class="MsoNormal"><span style="font-family:Calibri,sans-serif;font-size:15.0px;"><a href="mailto:fuyong@neusoft.com" target="_blank"><span style="font-family:Calibri,sans-serif;text-decoration:none;">@</span><span style="font-family:宋体;text-decoration:none;">付勇</span></a>,
not sure if this addressed your question or not, please let
us know if any additional help needed.</span></p>
<p class="MsoNormal"><span style="font-family:Calibri,sans-serif;font-size:15.0px;"> </span></p>
<p class="MsoNormal"><span style="font-family:Calibri,sans-serif;font-size:15.0px;">Thx.
- cindy</span></p>
<p class="MsoNormal"><span style="font-family:Calibri,sans-serif;font-size:15.0px;"> </span></p>
<p class="MsoNormal" style="text-align:left;"><a href="#this" name="_____replyseparator"></a><span style="font-family:Calibri,sans-serif;font-size:15.0px;font-weight:bold;">From:</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">
</span><span style="font-family:微软雅黑,sans-serif;font-size:15.0px;">钱江</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">
<a class="moz-txt-link-rfc2396E" href="mailto:qianjiang@baicells.com" target="_blank"><qianjiang@baicells.com></a>
<br >
<b >Sent:</b> Monday, October 28, 2019 7:14 PM<br >
<b >To:</b> </span><span style="font-family:微软雅黑,sans-serif;font-size:15.0px;">付勇</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">
<a class="moz-txt-link-rfc2396E" href="mailto:fuyong@neusoft.com" target="_blank"><fuyong@neusoft.com></a>; starlingx-discuss
<a class="moz-txt-link-rfc2396E" href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank"><starlingx-discuss@lists.starlingx.io></a><br >
<b >Cc:</b> zhaos <a class="moz-txt-link-rfc2396E" href="mailto:zhaos@neusoft.com" target="_blank"><zhaos@neusoft.com></a>; lilong-neu
<a class="moz-txt-link-rfc2396E" href="mailto:lilong-neu@neusoft.com" target="_blank"><lilong-neu@neusoft.com></a>; Xie, Cindy
<a class="moz-txt-link-rfc2396E" href="mailto:cindy.xie@intel.com" target="_blank"><cindy.xie@intel.com></a>; Lin, Shuicheng
<a class="moz-txt-link-rfc2396E" href="mailto:shuicheng.lin@intel.com" target="_blank"><shuicheng.lin@intel.com></a>; Sun, Austin
<a class="moz-txt-link-rfc2396E" href="mailto:austin.sun@intel.com" target="_blank"><austin.sun@intel.com></a>;
</span><span style="font-family:微软雅黑,sans-serif;font-size:15.0px;">张志国</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">
<a class="moz-txt-link-rfc2396E" href="mailto:zhangzhg@neusoft.com" target="_blank"><zhangzhg@neusoft.com></a><br >
<b >Subject:</b> </span><span style="font-family:微软雅黑,sans-serif;font-size:15.0px;">回复：</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">[Starlingx-discuss]
</span><span style="font-family:微软雅黑,sans-serif;font-size:15.0px;">【</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">StarlingX</span><span style="font-family:微软雅黑,sans-serif;font-size:15.0px;">】</span><span style="font-family:Calibri,sans-serif;font-size:15.0px;">Regarding
external networking issue</span></p>
<p class="MsoNormal" style="text-align:left;"> </p>
<div >
<div >
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">
Hi, Fuyong</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">
I wish you would allow me to write you even I
am not from the StarlingX team :-)</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">
From your description of your environment, I
guess,</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">
. </span><span style="background:white;color:black;">cirros-vm1 (IP:
172.16.100.188) is build over management network
(10.10.10.0/24)</span><span style="color:black;font-family:Tahoma,sans-serif;"></span></p>
</div>
<div >
<p class="MsoNormal"><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="color:black;font-family:Tahoma,sans-serif;"></span></p>
</div>
<div >
<p class="MsoNormal"><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;"> The cirros-vm1
should have its own router (the gateway should be
172.16.100.1), and this Gateway (172.16.100.1) should
be routed through an external network.</span><span style="color:black;font-family:Tahoma,sans-serif;"></span></p>
</div>
<div >
<p class="MsoNormal"><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;"> Then where is
your external network?</span><span style="color:black;font-family:Tahoma,sans-serif;"></span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;"> </span></p>
</div>
<div >
<p class="MsoNormal"><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;"> You should check
your openstack routers, you may find it from "ip netns
list", the router should be implemented using a
network namespace, just check them. </span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="background:white;color:black;">
</span><span style="background:white;color:black;font-family:Calibri,sans-serif;"> </span><span style="color:black;font-family:Tahoma,sans-serif;"></span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;"> </span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">
Hope it help</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">
Best Regard</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;"> </span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;">------------------------------------------------------------------</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;">发件人：付勇</span><span style="color:black;font-family:Tahoma,sans-serif;">
<<a href="mailto:fuyong@neusoft.com" target="_blank">fuyong@neusoft.com</a>></span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;">发送时间：</span><span style="color:black;font-family:Tahoma,sans-serif;">2019</span><span style="color:black;">年</span><span style="color:black;font-family:Tahoma,sans-serif;">10</span><span style="color:black;">月</span><span style="color:black;font-family:Tahoma,sans-serif;">25</span><span style="color:black;">日</span><span style="color:black;font-family:Tahoma,sans-serif;">(</span><span style="color:black;">星期五</span><span style="color:black;font-family:Tahoma,sans-serif;">)
17:58</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;">收件人：</span><span style="color:black;font-family:Tahoma,sans-serif;">starlingx-discuss
<<a href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank">starlingx-discuss@lists.starlingx.io</a>></span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;">抄 送：</span><span style="color:black;font-family:Tahoma,sans-serif;">zhaos
<<a href="mailto:zhaos@neusoft.com" target="_blank">zhaos@neusoft.com</a>>;
lilong-neu <<a href="mailto:lilong-neu@neusoft.com" target="_blank">lilong-neu@neusoft.com</a>>;
cindy.xie <<a href="mailto:cindy.xie@intel.com" target="_blank">cindy.xie@intel.com</a>>;
shuicheng.lin <<a href="mailto:shuicheng.lin@intel.com" target="_blank">shuicheng.lin@intel.com</a>>;
austin.sun <<a href="mailto:austin.sun@intel.com" target="_blank">austin.sun@intel.com</a>>;
</span><span style="color:black;">张志国</span><span style="color:black;font-family:Tahoma,sans-serif;"> <<a href="mailto:zhangzhg@neusoft.com" target="_blank">zhangzhg@neusoft.com</a>></span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;">主 题：</span><span style="color:black;font-family:Tahoma,sans-serif;">[Starlingx-discuss]
</span><span style="color:black;">【</span><span style="color:black;font-family:Tahoma,sans-serif;">StarlingX</span><span style="color:black;">】</span><span style="color:black;font-family:Tahoma,sans-serif;">Regarding
external networking issue</span></p>
</div>
<div >
<p class="MsoNormal"><span style="color:black;font-family:Tahoma,sans-serif;"> </span></p>
</div>
<p class="MsoPlainText"><span style="color:black;font-weight:bold;">Hi
StarlingX team</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">we have
deploy virtual All-in-one simplex machine and have a
question to ask for help.</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;font-weight:bold;">1.
problem:</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">we met a
problem with how to connect the external networking in
cirros or centos instance.</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;font-weight:bold;">2.
current status</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">controller-0
IP: 10.10.10.3</span></p>
<p class="MsoPlainText"><span style="color:black;">cirros-vm1
IP: 172.16.100.188,</span></p>
<p class="MsoPlainText"><span style="color:black;">from
172.16.100.188(cirros-vm1) ping external subnet</span></p>
<p class="MsoPlainText"><span style="color:black;">ext_<a class="moz-txt-link-freetext" href="net:10.10.10.190" target="_blank">net:10.10.10.190</a>
OK,</span></p>
<p class="MsoPlainText"><span style="color:black;">from
172.16.100.188(cirros-vm1) ping 10.10.10.3
(controller-0) is not OK.</span></p>
<p class="MsoPlainText"><span style="color:black;">from
172.16.100.188(cirros-vm1) ping 8.8.8.8 is not OK.</span></p>
<p class="MsoPlainText"><span style="color:black;">from
10.10.10.3 (controller-0) ping 8.8.8.8 is OK.</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;font-weight:bold;">3.
configuration</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">(1)
ml2_conf.ini</span></p>
<p class="MsoPlainText"><span style="color:black;">in
container:
neutron-ovs-agent-controller-0-937646f6-dtqcn:
</span></p>
<p class="MsoPlainText"><span style="color:black;">/etc/neutron/plugins/ml2/ml2_conf.ini</span></p>
<p class="MsoPlainText"><span style="color:black;">-----------[<a class="moz-txt-link-freetext" href="file:ml2_conf.ini" target="_blank">file:ml2_conf.ini</a>]--[begin]----------</span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">[agent]</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">extensions
=</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">[ml2]</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">extension_drivers
= port_security</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">mechanism_drivers
= openvswitch,sriovnicswitch,l2population</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">path_mtu
= 0</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;font-style:italic;">physical_network_mtus
= physnet0:1500,physnet1:1500 tenant_network_types =
vlan,vxlan type_drivers = flat,vlan,vxlan
[ml2_type_flat] flat_networks = [ml2_type_vxlan]
vni_ranges = vxlan_group = [ovs_driver]
vhost_user_enabled = true [securitygroup]
firewall_driver = openvswitch</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">-----------[<a class="moz-txt-link-freetext" href="file:ml2_conf.ini" target="_blank">file:ml2_conf.ini</a>]--[end]----------</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;">(2) the
networking topology refer below pic or the attached
file.</span></p>
<p class="MsoPlainText"><span style="color:black;"><img border="0" height="412" src="cid:__aliyun157243206782453325" width="605" style="width:6.3in;height:4.3in;vertical-align:bottom;"></span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;font-weight:bold;">4.infer:</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">we need
to create a bridge to connect with the external subnet
with the external networking.</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;font-weight:bold;">5.requirement:</span><span style="color:black;"></span></p>
<p class="MsoPlainText"><span style="color:black;">We want
to ask how to configure to connect external networking
in cirros-vm1 or centos instance?</span></p>
<p class="MsoPlainText"><span style="color:black;">we
expect result as below:</span></p>
<p class="MsoPlainText"><span style="color:black;">from
172.16.100.188(cirros-vm1) ping 8.8.8.8 is OK.</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;">Best
Regards</span></p>
<p class="MsoPlainText"><span style="color:black;">Wish you
happy everyday!</span></p>
<p class="MsoPlainText"><span style="color:black;">--------------------------------</span></p>
<p class="MsoPlainText"><span style="color:black;">Yong.Fu-
Neusoft</span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoPlainText"><span style="color:black;"> </span></p>
<p class="MsoNormal" style="text-align:left;"><span style="color:black;font-family:Tahoma,sans-serif;"> </span></p>
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