图解虚拟机网络模式1
<DIV><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">1. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">文中符号的说明：<SPAN lang=EN-US><BR><A/B>: </SPAN>可以理解成<SPAN lang=EN-US>A</SPAN>，也可以理解成<SPAN lang=EN-US>B</SPAN>。<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR>2. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">术语<SPAN lang=EN-US><BR></SPAN>调制解调器<SPAN lang=EN-US>(Modem): </SPAN>实现模拟信号与数字信号间的相互转换，可以忽略成一条网线。<SPAN lang=EN-US><BR></SPAN>路由器<SPAN lang=EN-US>: </SPAN>提供路由、<SPAN lang=EN-US>DHCP</SPAN>、<SPAN lang=EN-US>NAT</SPAN>等<SPAN lang=EN-US><</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>的专门设备，连接不同的网络<SPAN lang=EN-US>(</SPAN>包括局域网与<SPAN lang=EN-US>WAN</SPAN>之间的连接，提供互联网连接<SPAN lang=EN-US>)</SPAN>。<SPAN lang=EN-US><BR><</SPAN>交换机<SPAN lang=EN-US>/</SPAN>多接口网桥<SPAN lang=EN-US>>: </SPAN>交换机和网桥的功能类似，基本上可以认为是一样的。如果真要说差异在哪里：两点，一是接口数量不同，交换机比网桥的接口数量多；二是功能的实现方式不同，功能是指交换机和网桥使用桥接技术，实现方式不同是指交换机通过专门的<SPAN lang=EN-US><</SPAN>集成电路<SPAN lang=EN-US>/</SPAN>芯片<SPAN lang=EN-US>></SPAN>来实现桥接功能，而网桥则没有专门的处理芯，所以交换机比网桥更快更智能。<SPAN lang=EN-US><BR></SPAN>接口<SPAN lang=EN-US>(interface): </SPAN>路由器，交换机上那种直接插线的就称为接口。<SPAN lang=EN-US><BR>-------------- </SPAN>邪恶的分割线<SPAN lang=EN-US> ------------------------- </SPAN>以上偏向硬件，以下偏向软件<SPAN lang=EN-US> ---------------------------<BR></SPAN>端口<SPAN lang=EN-US>(port): </SPAN>大家都知道标识<SPAN lang=EN-US>WWW</SPAN>服务的是<SPAN lang=EN-US>80</SPAN>，标识<SPAN lang=EN-US>FTP</SPAN>服务的是<SPAN lang=EN-US>21</SPAN>，这些数字就称为端口。比如<SPAN lang=EN-US><a href="http://www.baidu.com/" target="_blank">www.baidu.com</A></SPAN>的<SPAN lang=EN-US>IP</SPAN>是<SPAN lang=EN-US>119.75.216.30</SPAN>，那么访问<SPAN lang=EN-US><a href="http://www.baidu.com/" target="_blank">www.baidu.com</A></SPAN>实质上就是访问了<SPAN lang=EN-US>119.75.216.30</SPAN>的<SPAN lang=EN-US>80</SPAN>端口<SPAN lang=EN-US>119.75.216.30:80</SPAN>。<SPAN lang=EN-US><BR></SPAN>路由服务器<SPAN lang=EN-US>: </SPAN>提供路由<SPAN lang=EN-US><</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>的服务器。如在<SPAN lang=EN-US>Windows 2003 Server</SPAN>上加入路由服务器角色就能提供路由<SPAN lang=EN-US><</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>，相当于一台路由器提供的路由<SPAN lang=EN-US><</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>。<SPAN lang=EN-US><BR>DHCP</SPAN>服务器<SPAN lang=EN-US>: </SPAN>提供<SPAN lang=EN-US>DHCP<</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>的服务器。如在<SPAN lang=EN-US>Windows 2003 Server</SPAN>上加入<SPAN lang=EN-US>DHCP</SPAN>服务器角色就能提供<SPAN lang=EN-US>DHCP<</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>，相当于一台路由器提供的<SPAN lang=EN-US>DHCP<</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>。<SPAN lang=EN-US><BR>NAT</SPAN>服务器<SPAN lang=EN-US>: </SPAN>提供<SPAN lang=EN-US>NAT<</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>的服务器。如在<SPAN lang=EN-US>Windows 2003 Server</SPAN>上加入<SPAN lang=EN-US>NAT</SPAN>服务器角色就能提供<SPAN lang=EN-US>NAT<</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>，相当于一台路由器提供的<SPAN lang=EN-US>NAT<</SPAN>功能<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>></SPAN>。<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><BR>3. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">硬件设备与软件<SPAN lang=EN-US>(</SPAN>虚拟<SPAN lang=EN-US>)</SPAN>设备的理解<SPAN lang=EN-US><BR></SPAN>先举个例子，见图<SPAN lang=EN-US>3.1</SPAN>，路由器和带双网卡并安装路由及防火墙<SPAN lang=EN-US><</SPAN>服务<SPAN lang=EN-US>/</SPAN>功能<SPAN lang=EN-US>></SPAN>的服务器，组建一个多主机网络。其中安装在<SPAN lang=EN-US>Windows 2003 Server</SPAN>上的路由<SPAN lang=EN-US><</SPAN>服务器角色<SPAN lang=EN-US>/</SPAN>服务<SPAN lang=EN-US>/</SPAN>功能<SPAN lang=EN-US>></SPAN>不正是一台<SPAN lang=EN-US>“</SPAN>虚拟路由器<SPAN lang=EN-US>”</SPAN>吗？使得<SPAN lang=EN-US>Windows 2003 Server</SPAN>像一台真的路由器一样在这个网络中发挥作用。实际上，如果在这台<SPAN lang=EN-US>Windows 2003 Server</SPAN>上再装上软件防火墙，用这样的软件方式也不正是虚拟出了一个网路上确实存在的硬件防火墙一样吗？<SPAN lang=EN-US><BR></SPAN>所以，从功能出发来看，<SPAN lang=EN-US><</SPAN>物理<SPAN lang=EN-US>/</SPAN>实际<SPAN lang=EN-US>/</SPAN>硬件<SPAN lang=EN-US>></SPAN>设备和<SPAN lang=EN-US><</SPAN>虚拟<SPAN lang=EN-US>/</SPAN>软件<SPAN lang=EN-US>></SPAN>设备是同一的，可以将<SPAN lang=EN-US><</SPAN>虚拟<SPAN lang=EN-US>/</SPAN>软件<SPAN lang=EN-US>></SPAN>设备看成是实实在在的硬件设备。但是，从设计和性能出发，两者有质的不同，前者是由专门设计的电子集成电路和微程序来实现功能，而后者是由软件编程交由<SPAN lang=EN-US>CPU</SPAN>处理来完成，前者的性能远胜过后者。<SPAN lang=EN-US><BR></SPAN>当这些概念清晰以后，再来看虚拟机以及虚拟设备就一目了然了。我们大可以将以软件方式虚拟出的硬件设备大大方方的放在我们的网络结构中，就像他们真实存在一样。<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4. VMware Workstation</SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">的虚拟网络<SPAN lang=EN-US><BR>4.1. </SPAN>虚拟网络组件<SPAN lang=EN-US><BR></SPAN>虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>></SPAN>：见图<SPAN lang=EN-US>4.1</SPAN>。安装一个虚拟<SPAN lang=EN-US>PC</SPAN>时自动安装一块虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>></SPAN>，可添加多块虚拟网卡。<SPAN lang=EN-US><BR></SPAN>虚拟交换机：见图<SPAN lang=EN-US>4.1</SPAN>。安装<SPAN lang=EN-US>VM</SPAN>时就自动安装了<SPAN lang=EN-US>10</SPAN>台虚拟交换机。<SPAN lang=EN-US><BR></SPAN>虚拟网桥：只在虚拟网卡连接到<SPAN lang=EN-US>VMnet0 (default Bridged)</SPAN>虚拟交换机上才应用虚拟网桥。<SPAN lang=EN-US><BR></SPAN>虚拟<SPAN lang=EN-US>DHCP</SPAN>服务器：见图<SPAN lang=EN-US>4.2</SPAN>。在虚拟网卡连接到<SPAN lang=EN-US>VMnet1</SPAN>或<SPAN lang=EN-US>VMnet8</SPAN>虚拟交换机时，自动安装运行虚拟<SPAN lang=EN-US>DHCP</SPAN>服务器并连接至这台虚拟交换机。<SPAN lang=EN-US><BR></SPAN>虚拟<SPAN lang=EN-US>NAT</SPAN>服务器：见图<SPAN lang=EN-US>4.3</SPAN>。只在虚拟网卡连接到<SPAN lang=EN-US>VMnet8 (NAT)</SPAN>虚拟交换机时才自动安装运行虚拟<SPAN lang=EN-US>NAT</SPAN>服务器，并连接至这台虚拟交换机。<SPAN lang=EN-US><BR></SPAN>主机虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>></SPAN>：见图<SPAN lang=EN-US>4.4</SPAN>。相当于一块确实存在的网卡，是连接主机和虚拟交换机用的网卡。<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">图<SPAN lang=EN-US>4.1 </SPAN>虚拟网卡及虚拟交换机<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">图<SPAN lang=EN-US>4.2 </SPAN>虚拟<SPAN lang=EN-US>DHCP</SPAN>服务器<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">图<SPAN lang=EN-US>4.3 </SPAN>虚拟<SPAN lang=EN-US>NAT</SPAN>服务器<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">图<SPAN lang=EN-US>4.4 </SPAN>主机虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.2. VMnet0 (default Bridged)<BR>4.2.1. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">用到的虚拟网络组件<SPAN lang=EN-US><BR></SPAN>虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>><BR></SPAN>虚拟交换机<SPAN lang=EN-US><BR></SPAN>虚拟网桥<SPAN lang=EN-US><BR>4.2.2. </SPAN>虚拟网络结构图示<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.2.3. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">一般家庭组网虚拟网络结构<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.3. VMnet1 (Host-only)<BR>4.3.1. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">用到的虚拟网络组件<SPAN lang=EN-US><BR></SPAN>虚拟网<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>><BR></SPAN>虚拟交换机<SPAN lang=EN-US><BR></SPAN>虚拟<SPAN lang=EN-US>DHCP</SPAN>服务器<SPAN lang=EN-US><BR></SPAN>主机虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>><BR>4.3.2. </SPAN>虚拟网络结构图示<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.3.3. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">一般家庭组网虚拟网络结构<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.4. VMnet8 (NAT)<BR>4.4.1. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">用到的虚拟网络组件<SPAN lang=EN-US><BR></SPAN>虚拟网<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">虚拟交换机<SPAN lang=EN-US><BR></SPAN>虚拟<SPAN lang=EN-US>DHCP</SPAN>服务器<SPAN lang=EN-US><BR></SPAN>主机虚拟<SPAN lang=EN-US><</SPAN>网卡<SPAN lang=EN-US>/</SPAN>网络适配器<SPAN lang=EN-US>><BR></SPAN>虚拟<SPAN lang=EN-US>NAT</SPAN>设备<SPAN lang=EN-US><BR>4.4.2. </SPAN>虚拟网络结构图示<SPAN lang=EN-US></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: left; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=left><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">4.4.3. </SPAN><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">一般家庭组网虚拟网络结构<SPAN lang=EN-US></SPAN></SPAN></P>
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