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cisco技術(shù)大總結(jié)-wenkub.com

2025-04-11 00:57 本頁面
   

【正文】 在交換機(jī)內(nèi)劃有3個(gè)虛擬網(wǎng),分別名為default、qbw、rgw,通過WSX5302實(shí)現(xiàn)虛擬網(wǎng)間路由。隨著虛擬網(wǎng)絡(luò)技術(shù)的應(yīng)用,隨之必然產(chǎn)生了在虛擬網(wǎng)間如何通訊的問題.   二、交換機(jī)間鏈路(ISL)協(xié)議   ISL(Interior SwITching Link)協(xié)議用于實(shí)現(xiàn)交換機(jī)間的VLAN中繼。   Router1:   ipx routing   interface ethernet 0   ipx network 2a00 encapsulation sap   !   interface serial 0   ipx network 3a00   !   ipx router eigrp 10   network 3a00   network 2a00   !     Router2:   ipx routing   interface ethernet 0   ipx network 2b00 encapsulation sap   !   interface serial 0   ipx network 3a00   !   ipx router eigrp 10   network 2b00   network 3a00   !   相關(guān)調(diào)試命令:   debug ipx packet   debug ipx routing   debug ipx sap   debug ipx spoof   debug ipx spx   show ipx eigrp interfaces   show ipx eigrp neighbors   show ipx eigrp topology   show ipx interface   show ipx route   show ipx servers   show ipx spxspoof          服務(wù)質(zhì)量及訪問控制   一、協(xié)議優(yōu)先級(jí)設(shè)置   1.有關(guān)命令   任務(wù) 命令   設(shè)置優(yōu)先級(jí)表項(xiàng)目 priorITylist listnumber protocol protocol{high | medium | normal | low} queuekeyword keywordvalue   使用指定的優(yōu)先級(jí)表 priorITygroup listnumber     2.舉例   Router1:   priorITylist 1 protocol ip high tcp telnet   priorITylist 1 protocol ip low tcp ftp   priorITylist 1 default normal   interface serial 0     priorITygroup 1     customqueuelist 1   三、訪問控制   1.有關(guān)命令   任務(wù) 命令   設(shè)置訪問表項(xiàng)目 Accesslist list {permIT | deny} address mask   設(shè)置隊(duì)列表中隊(duì)列的大小 queuelist listnumber queue queuenumber bytecount bytecountnumber   使用指定的訪問表 ip Accessgroup list {in | out}   2.舉例   Router1:   Accesslist 1 deny   Accesslist 1 permIT any   interface serial 0     ip Accessgroup 1 in {high | medium | normal | low} queuekeyword keywordvalue   使用指定的優(yōu)先級(jí)表 priorITygroup listnumber     2.舉例   Router1:   priorITylist 1 protocol ip high tcp telnet   priorITylist 1 protocol ip low tcp ftp   priorITylist 1 default normal   interface serial 0     priorITygroup 1     二、隊(duì)列定制   1.有關(guān)命令   任務(wù) 命令   設(shè)置隊(duì)列表中包含協(xié)議 queuelist listnumber protocol protocolname queuenumber queuekeyword keywordvalue   設(shè)置隊(duì)列表中隊(duì)列的大小 queuelist listnumber queue queuenumber bytecount bytecountnumber   使用指定的隊(duì)列表 customqueuelist list     2.舉例   Router1:   queuelist 1 protocol ip 0 tcp telnet   queuelist 1 protocol ip 1 tcp   queuelist 1 protocol ip 2 tcp ftp   queuelist 1 queue 0 bytecount 300   queuelist 1 queue 1 bytecount 200   queuelist 1 queue 2 bytecount 100   interface serial 0     customqueuelist 1     技術(shù)5虛擬局域網(wǎng)(VLAN)路由 一、虛擬局域網(wǎng)(VLAN)   當(dāng)前在我們構(gòu)造企業(yè)網(wǎng)絡(luò)時(shí)所采用的主干網(wǎng)絡(luò)技術(shù)一般都是基于交換和虛擬網(wǎng)絡(luò)的。   范例所涉及的命令   任務(wù) 命令   重新分配直連的路由 redistribute connected   重新分配靜態(tài)路由 redistribute static   重新分配ospf路由 redistribute ospf processid metric metricvalue   重新分配rip路由 redistribute rip metric metricvalue   Router1:   interface ethernet 0   ip address   !   interface serial 0   ip address   !   router ospf 100   redistribute rip metric 10   network area 0   !   router rip   version 2   redistribute ospf 100 metric 1   network   !   Router2:   interface looPBack 1   ip address   !   interface ethernet 0   ip address   !   interface serial 0   ip address   !   router ospf 200   redistribute connected subnet   redistribute static subnet   network area 0   !   ip route  ?。?  Router3:   interface ethernet 0   ip address   !   router rip   version 2   network   !   Router4:   interface ethernet 0   ip address   !   interface ethernet 1   ip address   !   ip route   !   五、IPX協(xié)議設(shè)置   IPX協(xié)議與IP協(xié)議是兩種不同的網(wǎng)絡(luò)層協(xié)議,它們的路由協(xié)議也不一樣,IPX的路由協(xié)議不象IP的路由協(xié)議那樣豐富,所以設(shè)置起來比較簡單。:      Router1:   interface ethernet 0   ip address   !   interface serial 0   ip address   ip ospf authenticationkey cisco   !   router ospf 100   network area 0   network area 1   area 0 authentication   !   Router2:   interface ethernet 0   ip address   !   interface serial 0   ip address   ip ospf authenticationkey cisco   !   router ospf 200   network area 0   network area 2   area 0 authentication   !   (md5)身份驗(yàn)證:   Router1:   interface ethernet 0   ip address   !   interface serial 0   ip address   ip ospf messagedigestkey 1 md5 cisco   !   router ospf 100   network area 0   network area 1   area 0 authentication messagedigest   !   Router2:   interface ethernet 0   ip address   !   interface serial 0   ip address   ip ospf messagedigestkey 1 md5 cisco   !   router ospf 200   network area 0   network area 2   area 0 authentication messagedigest   !   相關(guān)調(diào)試命令:   debug ip ospf adj   debug ip ospf events       四、重新分配路由   在實(shí)際工作中,我們會(huì)遇到使用多個(gè)IP路由協(xié)議的網(wǎng)絡(luò)。而消息摘要(md5)身份驗(yàn)證在傳輸身份驗(yàn)證口令前,要對口令進(jìn)行加密,所以一般建議使用此種方法進(jìn)行身份驗(yàn)證。   2.基本配置舉例:   Router1:   interface ethernet 0   ip address   !   interface serial 0   ip address   !   router ospf 100   network area 0   network area 1   !   Router2:   interface ethernet 0   ip address   !   interface serial 0   ip address   !   router ospf 200   network area 0   network area 2   !   Router3:   interface ethernet 0   ip address   !   router ospf 300   network area 1   !   Router4:   interface ethernet 0   ip address   !   router ospf 400   network area 1   !   相關(guān)調(diào)試命令:   debug ip ospf events   debug ip ospf packet   show ip ospf   show ip ospf databASE   show ip ospf interface   show ip ospf neighbor   show ip route   3. 使用身份驗(yàn)證   為了安全的原因,我們可以在相同OSPF區(qū)域的路由器上啟用身份驗(yàn)證的功能,只有經(jīng)過身份驗(yàn)證的同一區(qū)域的路由器才能互相通告路由信息。多個(gè)OSPF進(jìn)程需要多個(gè)OSPF數(shù)據(jù)庫的副本,必須運(yùn)行多個(gè)最短路徑算法的副本。   鏈路是路由器接口的另一種說法,因此OSPF也稱為接口狀態(tài)路由協(xié)議。在7個(gè)更?芷詡?30秒后,Cisco IOS 軟件從路由表中清除路由。RIP最多支持的跳數(shù)為15,即在源和目的網(wǎng)間所要經(jīng)過的最多路由器的數(shù)目為15,跳數(shù)16表示不可達(dá)。文檔見RFC105RFC1723。   2. 有關(guān)命令:   端口設(shè)置   任務(wù) 命令   設(shè)置Frame Relay封裝 encapsu
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