工作任務描述 A、B兩公司都建有自己的獨立局域網。而且相聚較遠(超過100米),現在兩公司進行了合併,需要通過鋪設光纖來實現兩公司局域網的網絡通信和資源共享 問題1:靜態路由和動態路由的區別? 答:靜態路由實在路由器中設置的固定路由 動態路由是指路由器能夠自動地建立自己的路由表,並且能夠根據實際情況的變化適時地進行調整。
問題2:簡述路由的構成元素以及各個元素的作用? 答“構成元素:路由類別、目的網絡、子網掩碼、轉發接口、下一跳網關、管理距離、度量值等 路由類別表示該路由表的類別或者來源 目的網絡:恤轉發數據到達的目標網絡(子網)地址 子網掩碼:標定該路由表的類型或者來源 轉發接口:到達目的網絡的路由器的硬件接口 下一跳網關:到達目的網絡方向和本路由器鏈接的對端路由器接口IP地址 管路距離:設定各條路由的優先級(0-255) 度量值:各種路由協議衡量到達目的網絡的路徑長度
問題3:普通路由和默認路由的區別? 答:默認路由是一種特殊的靜態路由,當 路由表中與包的目的地址之間沒有匹配的表項時,路由器能夠做出選擇。如果沒有默認路由,那麼目的地址在路由表中沒有匹配表項的包將被丟棄。 工作任務實施 1. 網絡拓撲結構設計(粘貼PT的拓撲圖,要有IP地址的規劃信息)
2. 設備配置命令(各個路由器分別配置) Router0 Router>en Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/0 Router(config-if)#ip ad 192.168.1.1 255.255.255.0 Router(config-if)#no sh
Router(config-if)# %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit Router(config)#int f1/0 Router(config-if)#ip ad 172.16.1.1 255.255.255.252 Router(config-if)#no sh
%LINK-5-CHANGED: Interface FastEthernet1/0, changed state to down Router(config-if)# %LINK-5-CHANGED: Interface FastEthernet1/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up
Router(config-if)#exit Router(config)#ip route 192.168.2.0 255.255.255.0 172.16.1.2 Router1 Router>en Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/0 Router(config-if)#ip ad 192.168.2.1 255.255.255.0 Router(config-if)#no sh
Router(config-if)# %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit Router(config)#int f1/0 Router(config-if)#ip ad 172.16.1.2 255.255.255.252 Router(config-if)#no sh
Router(config-if)# %LINK-5-CHANGED: Interface FastEthernet1/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, changed state to up
Router(config-if)#exit Router(config)#ip route 192.168.1.0 255.255.255.0 172.16.1.1
3. 單段測試結果 PC>ping 192.168.1.1
Pinging 192.168.1.1 with 32 bytes of data:
Reply from 192.168.1.1: bytes=32 time=1ms TTL=255 Reply from 192.168.1.1: bytes=32 time=0ms TTL=255 Reply from 192.168.1.1: bytes=32 time=0ms TTL=255 Reply from 192.168.1.1: bytes=32 time=0ms TTL=255
Ping statistics for 192.168.1.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 1ms, Average = 0ms
4. 綜合測試結果
PC>ping 192.168.2.2
Pinging 192.168.2.2 with 32 bytes of data:
Reply from 192.168.2.2: bytes=32 time=0ms TTL=126 Reply from 192.168.2.2: bytes=32 time=0ms TTL=126 Reply from 192.168.2.2: bytes=32 time=0ms TTL=126 Reply from 192.168.2.2: bytes=32 time=0ms TTL=126
Ping statistics for 192.168.2.2: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms
5. 查看各個路由器的路由 Route0 Router#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route
Gateway of last resort is not set
172.16.0.0/30 is subnetted, 1 subnets C 172.16.1.0 is directly connected, FastEthernet1/0 C 192.168.1.0/24 is directly connected, FastEthernet0/0 S 192.168.2.0/24 [1/0] via 172.16.1.2 Router#
Route1 Router#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route
Gateway of last resort is not set
172.16.0.0/30 is subnetted, 1 subnets C 172.16.1.0 is directly connected, FastEthernet1/0 S 192.168.1.0/24 [1/0] via 172.16.1.1 C 192.168.2.0/24 is directly connected, FastEthernet0/0 Router# |
工作擴展 如果是三個路由器連接四個子網,該如何配置路由(見教材部分的任務擴展),請列出各個路由器配置的路由 1.使用精細路由配置 Route0 Router(config)#ip route 172.16.1.4 255.255.255.252 172.16.1.2 Router(config)#ip route 192.168.2.0 255.255.255.0 172.16.1.2 CNC Router(config)#ip route 192.168.1.0 255.255.255.0 172.16.1.1 Router(config)#ip route 192.168.2.0 255.255.255.0 172.16.1.5 Route1 Router(config)#ip route 172.168.1.0 255.255.255.252 172.16.1.6 Router(config)#ip route 192.168.1.0 255.255.255.0 172.16.1.6
2.使用缺省路由配置 Route0 Router(config)#ip route 0.0.0.0 0.0.0.0 172.16.1.2 Route1 Router(config)#ip route 0.0.0.0 0.0.0.0 172.16.1.6 CNC Router(config)#ip route 192.168.2.0 255.255.255.0 172.16.1.5 Router(config)#ip route 192.168.1.0 255.255.255.0 172.16.1.1
|
配置靜態路由實現兩個公司網路互聯
發表評論
所有評論
還沒有人評論,想成為第一個評論的人麼? 請在上方評論欄輸入並且點擊發布.