ospf配置笔记Word文档格式.docx
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ospf配置笔记Word文档格式.docx
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r3#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.51FULL/DROTHER00:
01:
514.4.4.2Serial1/1
8.8.8.61FULL/DR00:
464.4.4.3Serial1/1
r3#shrun
Buildingconfiguration...
hostnamer3
interfaceLoopback0
ipaddress8.8.8.3255.255.255.255
interfaceSerial1/1
ipaddress4.4.4.1255.255.255.0
encapsulationframe-relay
serialrestart-delay0
routerospf100
log-adjacency-changes
network4.4.4.10.0.0.0area1
neighbor4.4.4.2priority1
neighbor4.4.4.3priority1
!
routerospf1
network8.8.8.30.0.0.0area0
R5配置
Router#shrun
hostnameRouter
ipaddress8.8.8.5255.255.255.255
ipaddress4.4.4.2255.255.255.0
network4.4.4.20.0.0.0area1
network8.8.8.50.0.0.0area1
r6配置
ipaddress8.8.8.6255.255.255.255
ipaddress4.4.4.3255.255.255.0
network4.4.4.30.0.0.0area1
network8.8.8.60.0.0.0area1
配置OSPF网络类型非广播
524.4.4.2Serial1/1
444.4.4.3Serial1/1
可能是r3比较早开启,所以作为DR。
R5和r6配上frame-relaymapip4.4.4.3100broadcast和frame-relaymapip4.4.4.3200broadcast后才能ping通
在一个自治area中,没有area0依然能通信。
竞选DR:
让r5和r6的优先级为0,丧失竞选:
r5(config)#ints1/1
r5(config-if)#ipospfp
r5(config-if)#ipospfpriority0
r6(config)#ints1/1
r6(config-if)#ipospfp
r6(config-if)#ipospfpriority0
在三台路由器上运行
clearipospfprocess
8.8.8.502WAY/DROTHER00:
134.4.4.2Serial1/1
8.8.8.602WAY/DROTHER00:
384.4.4.3Serial1/1
配置OSPF网络类型点到多点
r3(config)#ints1/1
r3(config-if)#ipospfnetworkpoint-to-multipoint
r5(config)#ints1/1
r5(config-if)#ipospfnetworkpoint-to-multipoint
r5(config-if)#noipospfpriority0
r6(config-if)#ipospfnetworkpoint-to-multipoint
r6(config-if)#noipospfpriority0
8.8.8.61FULL/-00:
314.4.4.3Serial1/1
8.8.8.51FULL/-00:
434.4.4.2Serial1/1
r5#shipospfnei
8.8.8.30FULL/-00:
404.4.4.1Serial1/1
r6#shipospfnei
444.4.4.1Serial1/1
r6#ping8.8.8.5
Typeescapesequencetoabort.
Sending5,100-byteICMPEchosto8.8.8.5,timeoutis2seconds:
为什么8.8.8.3优先级为0?
配置汇总(使用设备:
r5,r6,r3,r4,switch)
Router(config)#hostnamer4
r4(config)#ints1/0
r4(config-if)#ipadd
r4(config-if)#ipaddress3.3.3.2255.255.255.0
r4(config-if)#noshut
r4(config)#intloopback0
r4(config-if)#ipaddress8.8.8.4255.255.255.255
r4(config-if)#exit
r4(config)#ospf
r4(config)#routerospf100
r4(config-router)#net
r4(config-router)#network3.3.3.20.0.0.0are
r4(config-router)#network3.3.3.20.0.0.0area0
r4(config-router)#network8.8.8.40.0.0.0area0
r3(config)#ints1/0
r3(config-if)#ipadd
r3(config-if)#ipaddress3.3.3.1255.255.255.0
r3(config-if)#noshut
r3(config-router)#network3.3.3.10.0.0.0area0
r3#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
3.0.0.0/24issubnetted,1subnets
C3.3.3.0isdirectlyconnected,Serial1/0
4.0.0.0/8isvariablysubnetted,3subnets,2masks
C4.4.4.0/24isdirectlyconnected,Serial1/1
O4.4.4.2/32[110/64]via4.4.4.2,00:
16:
24,Serial1/1
O4.4.4.3/32[110/64]via4.4.4.3,00:
8.0.0.0/32issubnetted,4subnets
C8.8.8.3isdirectlyconnected,Loopback0
O8.8.8.4[110/65]via3.3.3.2,00:
05:
16,Serial1/0
O8.8.8.5[110/65]via4.4.4.2,00:
O8.8.8.6[110/65]via4.4.4.3,00:
r4#shiproute
4.0.0.0/32issubnetted,3subnets
OIA4.4.4.1[110/64]via3.3.3.1,00:
00,Serial1/0
OIA4.4.4.2[110/128]via3.3.3.1,00:
OIA4.4.4.3[110/128]via3.3.3.1,00:
O8.8.8.3[110/65]via3.3.3.1,00:
C8.8.8.4isdirectlyconnected,Loopback0
OIA8.8.8.5[110/129]via3.3.3.1,00:
OIA8.8.8.6[110/129]via3.3.3.1,00:
r5#shiproute
OIA3.3.3.0[110/128]via4.4.4.1,00:
00:
15,Serial1/1
O4.4.4.1/32[110/64]via4.4.4.1,00:
11:
13,Serial1/1
O4.4.4.3/32[110/128]via4.4.4.1,00:
OIA8.8.8.3[110/65]via4.4.4.1,00:
OIA8.8.8.4[110/129]via4.4.4.1,00:
05,Serial1/1
C8.8.8.5isdirectlyconnected,Loopback0
O8.8.8.6[110/129]via4.4.4.1,00:
在r3上做汇总:
r3(config)#routerospf100
r3(config-router)#area1ra
r3(config-router)#area1range4.4.4.0255.255.255.248
r3(config-router)#area0range3.3.3.0255.255.255.252
4.0.0.0/29issubnetted,1subnets
OIA4.4.4.0[110/64]via3.3.3.1,00:
55,Serial1/0
09:
57,Serial1/0
r5#shiproute
12:
16,Serial1/1
23:
06,Serial1/1
R5#shipospfdatabase
OSPFRouterwithID(8.8.8.5)(ProcessID100)
RouterLinkStates(Area1)
LinkIDADVRouterAgeSeq#ChecksumLinkcount
8.8.8.38.8.8.315550x800000070x0053A33
8.8.8.58.8.8.516950x800000080x0041FC3
8.8.8.68.8.8.616700x800000020x0083BB3
SummaryNetLinkStates(Area1)
LinkIDADVRouterAgeSeq#Checksum
3.3.3.08.8.8.38930x800000010x00CC0C
8.8.8.38.8.8.315500x800000010x008184
8.8.8.48.8.8.38830x800000010x00F9CA
r3#shipospfdatabase
OSPFRouterwithID(8.8.8.3)(ProcessID100)
RouterLinkStates(Area0)
8.8.8.38.8.8.39700x800000030x00729D3
8.8.8.48.8.8.49700x800000040x
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