實驗拓?fù)洹⒔K端服務(wù)器配置08(編輯修改稿)
2025-03-22 03:37 本頁面
【文章內(nèi)容簡介】 int s0/0/1 R3(configif)ip address R3(configif)no shutdown R3(configif)encapsulation framerelay R4(config)int s0/0/1 R4(configif)ip address R4(configif)no shutdown R4(configif)encapsulation framerelay RS— 840 實驗調(diào)試 1 R1ping Type escape sequence to abort. Sending 5, 100byte ICMP Echos to , timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), roundtrip min/avg/max = 28/28/28 ms R1ping Type escape sequence to abort. Sending 5, 100byte ICMP Echos to , timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), roundtrip min/avg/max = 28/28/28 ms RS— 841 實驗調(diào)試 2 R1show framerelay map Serial0/0/0 (up): ip dlci 103(0x67,0x1870), dynamic, broadcast, status defined, active Serial0/0/0 (up): ip dlci 104(0x68,0x1880), dynamic, broadcast, status defined, active //默認(rèn)時，幀中繼接口開啟了動態(tài)映射，會自動建立幀中繼映射 , “ dynamic”表明這是動態(tài)映射。 RS— 842 實驗調(diào)試 3 R1show framerelay pvc PVC Statistics for interface Serial0/0/0 (Frame Relay DTE) Active Inactive Deleted Static Local 2 0 0 0 Switched 0 0 0 0 Unused 0 0 0 0 DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0 //可以看到 DLCI=103的 PVC的狀態(tài)為 active RS— 843 實驗步驟 2： 手工配置幀中繼映射 R1(config)int s0/0/0 R1(configif)no framerelay inversearp //關(guān)閉自動映射 R1(configif)framerelay map ip 103 broadcast R1(configif)framerelay map ip 104 broadcast RS— 844 R3(config)int s0/0/1 R3(configif)no framerelay inversearp R3(configif)framerelay map ip 301 broadcast R4(config)int s0/0/1 R4(configif)no framerelay inversearp R4(configif)framerelay map ip 401 broadcast RS— 845 實驗 3 幀中繼上的 RIP RS— 846 實驗?zāi)康? 1. 幀中繼上路由協(xié)議運(yùn)行的特殊性 2. 水平分割 RS— 847 實驗拓?fù)? 1. 在實驗 1基礎(chǔ)上繼續(xù)本實驗 2. 要求在 R R R4配置 RIP RS— 848 實驗步驟 1： 配置 RIP R1(config)interface Loopback0 R1(configif)ip address R1(config)router rip R1(configrouter)work R1(configrouter)work RS— 849 R3(config)interface Loopback0 R3(configif)ip address R3(config)router rip R3(configrouter)work R3(configrouter)work R4(config)interface Loopback0 R4(configif)ip address R4(config)router rip R4(configrouter)work R4(configrouter)work RS— 850 實驗步驟 2： 檢查路由表、測試 R3show ip route （此處省略） C , Serial0/0/1 R [120/1] via , 00:00:26, Serial0/0/1 , 1 subs C is directly connected, Loopback0 R [120/2] via , 00:00:26, Serial0/0/1 //看到正常的路由表，注意 RIP路由表中的下一跳都指向 RS— 851 R3ping source loopback 0 Type escape sequence to abort. Sending 5, 100byte ICMP Echos to , timeout is 2 seconds: Packet sent with a source address of !!!!! //注意這里是從 R3的環(huán)回口 ping R4的環(huán)回口 RS— 852 R3ping Type escape sequence to abort. Sending 5, 100byte ICMP Echos to , timeout is 2 seconds: .... //沒有指明 ping使用的源接口時就無法 ping通 R4的環(huán)回口了 //原因： 這里 ping命令沒指明源地址，則 ICMP數(shù)據(jù)包的源 IP為，目標(biāo)為 。 R3路由表查詢路由表得知該數(shù)據(jù)包應(yīng)該發(fā)送給 ，而 DLCI為 301；數(shù)據(jù)包到達(dá) R1， R1路由表查詢路由表得知該數(shù)據(jù)包應(yīng)該發(fā)送給 ，而 DLCI為 104。 R4收到數(shù)據(jù)包，進(jìn)行響應(yīng)， ICMP數(shù)據(jù)包的源 IP為 ，目標(biāo)為 ； R4有 ，然而卻沒有 ，因此無法進(jìn)行封裝 。 RS— 853 實驗步驟 3： 水平分割問題 R1show ip int s0/0/0 Serial0/0/0 is up, line protocol is up Inter address is （此處省略） Security level is default Split horizon is disabled //接口封裝了幀中繼后，水平分割被自動關(guān)閉 ICMP redirects are always s
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