tailieunhanh - Chapter5 IP Routing

Routing Basics 路由协议(routing protocol):用于 routers 动态寻找网络最佳路径,保证所有 routers 拥有相同的 OSPF,RIP,IGRP,EIGRP 等 可路由协议(routed protocol):当所有的routers知道了整个网络的拓扑结构以后,可路由协议就 IP和 IPX 路由: . | Chapter5 IP Routing Routing Basics ÉWK routing protocol routers M ft fê fôŒ Wrouters WWffiRW É . - gÈfe ftê8SÔ H fifîÆfâKê. g KfiWTW OSPF RIP IGRP EIGRP W ÉWK routed protocol âOW routers T M W fêÈ wœm-mwÈMm n ffl m fcmm m IP IPX to 1 WA 1 O JffiTOMW 1 ÎM t lTO routers .routers Ù M fcinM ÙTOfôft TO fô m router ÈWMWWW 1. UtAMWdestination address 2. WM mTOft WW router 3. a mra w w a 4. a mra w m 5. MW i ti The IP Routing Process É S â IP W ÛÈœ IP ra- IP THfâ -ÛÈMW WÎ8ffi IP m M i mws TO ip mfâWMO-wi ï M W router IP MtO router É M IP router M Æ IP W M default gateway router . M MWû M -WmWR-MmW router IP iW router IP MW IP @W IP iWWIW W W SW n Æ IP ffi . .m- pouter ftI n M WIWOimMn 1 M45 T- router fë .router teWfë M Æ fê nfêftWÆ T IP K W M router OoM IP MW ft W IP M swi m ip j0m a0fô fô ip wmTO T â M a m ip a M b gfe mac MttfêÆfôM UM fô ra nMtt. MS w mra . show ip route iS i feM kt n Router sh ip route Gateway of last resort is not set C 24 is directly connected FastEthernet0 0 C 24 is directly connected Serial 0 0 Router C M WM Mffi Configuring IP Routing in Our Network â 1 router OJ 1 @fél M É MftWMWM X M r W@ mMWÈ AMMW WMÉ 1. É static routing 2. M É default routing 3. É dynamic routing Static Routing 1 i i Wi WM L SWMMW router W CPU t H 25 B M M 1MOflw mw 2MlWœOO5ÆMW routers W É XM l fî Éftffil ip route dest-network mask next-hop address M exit interface administrative distance permanent ip route Mlft MÉ dest-network MXMAMÉ WMÉ mask next-hop address T 1 MW router MM exit interface M M W M S next-hop address HMS MÆXM MM point-to-point tt r l WAN S 4M X M LAN administrative distance MMWMT MÉW SMSM 1 0M Æ exit interface M next-hop address WS WM 0 permanent M n shutdown fM router MtciOT 1 M router ffi W S MÉMM ê MMÉ mm. w mŒBP ftmM fms M-fôMW É MÉWM m Router Network Address Interface Address RouterA fa0 0 s0 0 RouterB s0 0 s0 1 .