.word.zl-.word.zl-.word.zl-.word.zl-H3C交換機配置-如何實現(xiàn)兩個網(wǎng)段主機與外部通信很多朋友屢次提到交換機的配置，提到如何實現(xiàn)兩個網(wǎng)段主機與外部通信，這個是非常常見的交換機配置，這里面我們就用H3c的配置來了解下這個過程。如圖1所示，在兩個網(wǎng)絡中的主機上采用交換機配置的主IP地址和從IP地址作為網(wǎng)關，實現(xiàn)兩個網(wǎng)段的主機都可以通過Switch與外部網(wǎng)絡通信。圖1IP地址配置組網(wǎng)圖172.16.1.0/24172.16.1.2T24Hwt&IPnetworkVlsH-ln11Switch172.16.1.2T24Hwt&IPnetworkVlsH-ln11Switch172.1?.2.1X24&ubHas：AHas：A172.1B.2.W2^一、配置方法步驟.Switch的配置#配置VLAN接口1的主IP地址和從IP地址。<Switch>system-view[Switch]interfacevlan-interface1[Switch-Vlan-interfacel]ipaddress172.16.1.1255.255.255.0[Switch-Vlan-interfacel]ipaddress172.16.2.1255.255.255.0sub[Switch-Vlan-interface1]return.主機的配置在172.16.1.0/24網(wǎng)段中的主機上配置網(wǎng)關為172.16.1.1；在172.16.2.0/24網(wǎng)段中的主機上配置網(wǎng)關為172.16.2.1。3、驗證配置使用ping命令檢測Switch與網(wǎng)絡172.16.1.0/24主機的連通性。<Switch>ping172.16.1.2PING172.16.1.2:56databytes,pressCTRL_CtobreakReplyfrom172.16.1.2:bytes=56Sequence=1ttl=255time=25msReplyfrom172.16.1.2:bytes=56Sequence=2ttl=255time=27msReplyfrom172.16.1.2:bytes=56Sequence=3ttl=255time=26msReplyfrom172.16.1.2:bytes=56Sequence=4ttl=255time=26msReplyfrom172.16.1.2:bytes=56Sequence=5ttl=255time=26ms---172.16.1.2pingstatistics--5packet(s)transmitted5packet(s)received0.00%packetlossround-tripmin/avg/max=25/26/27ms顯示信息表示Switch與網(wǎng)絡172.16.1.0/24的主機可以互通。#使用ping命令檢測Switch與網(wǎng)絡172.16.2.0/24主機的連通性。<Switch>ping172.16.2.2PING172.16.2.2:56databytes,pressCTRL_CtobreakReplyfrom172.16.2.2:bytes=56Sequence=1ttl=255time=25msReplyfrom172.16.2.2:bytes=56Sequence=2ttl=255time=26msReplyfrom172.16.2.2:bytes=56Sequence=3ttl=255time=26msReplyfrom172.16.2.2:bytes=56Sequence=4ttl=255time=26msReplyfrom172.16.2.2:bytes=56Sequence=5ttl=255time=26ms---172.16.2.2pingstatistics--5packet(s)transmitted5packet(s)received0.00%packetlossround-tripmin/avg/max=25/25/26ms顯示信息表示Switch與網(wǎng)絡172.16.2.0/24的主機可以互通。4、配置文件#interfaceVlan-interface1ipaddress172.16.1.1255.255.255.0ipaddress172.16.2.1255.255.255.0sub#二、舉例允許發(fā)送定向播送報文典型配置舉例如圖2所示，Host通過網(wǎng)關Switch，將定向播送發(fā)往Server所在的網(wǎng)段，通過在交換機上配置允許發(fā)送定向播送報文，使得Server可以收到報文。圖2允許發(fā)送定向播送報文配置組網(wǎng)圖配置步驟1、配置Switch的配置創(chuàng)立VLAN2，并將端口GigabitEthernet1/0/1參加到VLAN2中。<Switch>system-view[Switch]Vlan2[Switch-vlan2]portGigabitEthernet1/0/1[Switch-Vlan2]quit創(chuàng)立VLAN3，并將端口GigabitEthernet1/0/2參加到VLAN3中。[Switch]Vlan3[Switch-vlan3]portGigabitEthernet1/0/2[Switch-Vlan3]quit配置VLAN接口3和VLAN接口2的IP地址。[Switch]interfacevlan-interface3[Switch-Vlan-interface3]ipaddress1.1.1.224[Switch-Vlan-interface3]quit[Switch]interfacevlan-interface2[Switch-Vlan-interface2]ipaddress2.2.2.224配置允許VLAN接口2轉發(fā)定向播送報文。[Switch-Vlan-interface2]ipforward-broadcast配置配置網(wǎng)關為Switch的VLAN接口3的IP地址。驗證配置#配置完成以后，在Host上pingSwitch的VLAN接口2所在子網(wǎng)網(wǎng)段的播送地址[2.2.2.255〕時，Server可以收到該報文。取消掉1「forward-broadcast的配置，Server不能收到該報文。配置文件#vlan2to3#interfaceVlan-interface2ipaddress2.2.2.2255.255.255.0ipforward-broadcast#interfaceVlan-interface3ipaddress1.1.1.2255