该图为某中型企业拓扑图。中心路由器连接总公司的核心交换机,并连接两个分公司;全公司通过中心路由器做NAT上公网。为了网络安全,在中心路由器和INTERNET之间架设防火墙,防火墙采用透明模式;分公司可以访问总公司网络,但是分公司之间不能互相访问。 1、根据拓扑图搭好网络环境。 2、请为该网络合理规划IP地址。 3、全网运行OSPF动态路由协议。 4、最终全网能实现互通;并且都能访问INTERNET。 实验步骤:首先规划IP地址 PC1:192.168.1.2/24 网关:192.168.1.1/24 PC2:192.168.2.2/24 网关:192.168.2.1/24 PC3:192.168.5.2/24 网关:192.168.5.1/24 PC4:192.168.7.2/24 网关:192.168.7.1/24 L3交换机上做vlan100和vlan200的网关 L3交换机和中心路由器之间网段为192.168.3.0/24网段 分公司1和中心路由器之间网段为192.168.4.0/24网段 分公司1分配给用户IP地址为 192.168.5.0/24网段 分公司2和中心路由器之间网段为 192.168.6.0/24网段 分公司2分配给用户IP地址为 192.168.7.0/24网段 外网出接口IP为:220.1.1.1/30 ,外网网关为220.1.1.2/30 配置参考: 楼层交换机配置 [H3C]sysname swa [swa]vlan 100 [swa-vlan100]port ethernet 0/1 [swa]vlan 200 [swa-vlan 200]port ethernet 0/2 [swa]link-aggregation group 1 mode manual [swa]interface ethernet 0/23 [swa-e 0/23]speed 100 [swa-e 0/23]duplex full [swa-e 0/23]port link-aggregation group 1 [swa-e 0/23]port link-type trunk [swa-e 0/23]port trunk permit vlan 100 200 [swa]interface ethernet 0/24 [swa-e 0/24]speed 100 [swa-e 0/24]duplex full [swa-e 0/24]port link-aggregation group 1 [swa-e 0/24]port link-type trunk [swa-e 0/24]port trunk permit vlan 100 200 核心交换机配置: [H3C]sysname swb [swb]vlan 100 [swb]vlan 200 [swb]link-aggregation group 1 mode manual [swb]interface ethernet 0/23 [swb-e 0/23]speed 100 [swb-e 0/23]duplex full [swb-e 0/23]port link-aggregation group 1 [swb-e 0/23]port link-type trunk [swb-e 0/23]port trunk permit vlan 100 200 [swb]interface ethernet 0/24 [swb-e 0/24]speed 100 [swb-e 0/24]duplex full [swb-e 0/24]port link-aggregation group 1 [swb-e 0/24]port link-type trunk [swb-e 0/24]port trunk permit vlan 100 200 [swb]interface vlan 100 [swb- vlan-interface100] ip address 192.168.1.1 24 [swb]interface vlan 200 [swb- vlan-interface200] ip address 192.168.2.1 24 [swb]interface vlan 1 [swb- vlan-interface1] ip address 192.168.3.1 24 [swb]router id 192.168.3.1 [swb]ospf [swb-ospf-1]area 0 [swb-ospf-1-area0.0.0.0]network 192.168.1.0 0.0.0.255 [swb-ospf-1-area0.0.0.0]network 192.168.2.0 0.0.0.255 [swb-ospf-1-area0.0.0.0]network 192.168.3.0 0.0.0.255 中心路由器配置 [H3C]sysname RTC [RTC]interface ethernet 0/1 [RTC-e 0/1]ip address 192.168.3.2 24 [RTC]interface ethernet 0/0 [RTC-e 0/1]ip address 220.1.1.1 30 [RTC]interface s 2/0 [RTC-s 2/0]ip address 192.168.4.1 24 [RTC]interface s 2/1 [RTC-s 2/1]ip address 192.168.6.1 24 [RTC]router id 192.168.3.2 [RTC]ospf [RTC-ospf-1]area 0 [RTC-ospf-1-area0.0.0.0]network 192.168.3.0 0.0.0.255 [RTC-ospf-1-area0.0.0.0]network 192.168.4.0 0.0.0.255 [RTC-ospf-1-area0.0.0.0]network 192.168.6.0 0.0.0.255 [RTC]ip route-static 0.0.0.0 0 220.1.1.2 [RTC -ospf-1]default-route-advertise 向OSPF区域中发布缺省路由 [RTC]acl number 2000 [RTC -acl-adv-2000]rule permit source any [RTC]interface ethernet0/0 [RTC -e0/0]nat outbound 2000 [RTC]firewall enable [RTC]acl number 3000 [RTC-acl-adv-3000]rule deny ip source 192.168.5.0 0.0.0.255 destination 192.168.7. 0 0.0.0.255 [RTC] interface s2/0 [RTC-s2/0]firewall packet-filter 3000 inbound 分公司1路由器配置: [H3C]sysname RTD [RTD-e0/0]ip address 192.168.5.1 24 [RTD]interface s 2/0 [RTD-s2/0]ip address 192.168.4.2 24 [RTD]router id 192.168.4.1 [RTD]ospf [RTD-ospf-1]area 0 [RTD-ospf-1-area0.0.0.0]network 192.168.4.0 0.0.0.255 [RTD-ospf-1-area0.0.0.0]network 192.168.5.0 0.0.0.255 分公司2路由器配置: [H3C]sysname RTE [RTE-e0/0]ip address 192.168.7.1 24 [RTE]interface s 2/0 [RTE-s2/1]ip address 192.168.6.2 24 [RTE]router id 192.168.6.2 [RTE]ospf [RTE-ospf-1]area 0 [RTE-ospf-1-area0.0.0.0]network 192.168.6.0 0.0.0.255 [RTE-ospf-1-area0.0.0.0]network 192.168.7.0 0.0.0.255
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