残泪’s Blog 纵没有别人帮|一生只靠我双手 » ospf http://www.canlei.org 纵没有别人帮|一生只靠我双手 Fri, 03 Feb 2012 01:54:06 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 残泪视频讲解OSPF综合实验 http://www.canlei.org/tears-of-the-pearl-video-explaining-ospf-comprehensive-experiment.htm http://www.canlei.org/tears-of-the-pearl-video-explaining-ospf-comprehensive-experiment.htm#comments Tue, 02 Nov 2010 17:51:54 +0000 残泪 http://www.canlei.org/?p=926 残泪视频讲解OSPF综合实验

半夜的时候给大家录的,脑子也有点迷糊,我30多个小时没睡了,有错误的地方见谅

这个实验涉及OSPF虚链路,NSSA,STUB区域,OSPF手动汇总,OSPF区域及接口使用加密和非加密认证,优化路由表

下载地址:残泪视频讲解OSPF综合实验

]]> http://www.canlei.org/tears-of-the-pearl-video-explaining-ospf-comprehensive-experiment.htm/feed 2 残泪讲解OSPF三种解决不连续区域的方法 http://www.canlei.org/tears-of-the-pearl-video-explaining-ospf-are-three-ways-to-resolve-discontinuities.htm http://www.canlei.org/tears-of-the-pearl-video-explaining-ospf-are-three-ways-to-resolve-discontinuities.htm#comments Sun, 17 Oct 2010 09:34:39 +0000 残泪 http://www.canlei.org/?p=843

残泪原创

今天复习的总结,OSPF多进程双向重分布,tunnel,虚链路

下载地址:残泪讲解OSPF三种解决不连续区域的方法

]]> http://www.canlei.org/tears-of-the-pearl-video-explaining-ospf-are-three-ways-to-resolve-discontinuities.htm/feed 0 哒哒视频讲解OSPF大型综合实验 http://www.canlei.org/da-da-video-explaining-large-scale-integrated-experiments-ospf.htm http://www.canlei.org/da-da-video-explaining-large-scale-integrated-experiments-ospf.htm#comments Thu, 16 Sep 2010 10:53:07 +0000 残泪 http://www.canlei.org/?p=618 好朋友哒哒录制的,我催了几次,今天终于交工了

OSPF的大型实验,涉及FR,虚链路,手工汇总,全网互通等等

下载地址:http://u.115.com/file/f7f1a11a7e

]]> http://www.canlei.org/da-da-video-explaining-large-scale-integrated-experiments-ospf.htm/feed 6 [我的IE路]视频讲解多归路园区网实验 http://www.canlei.org/my-ie-road-video-explaining-many-experimental-return-campus-network.htm http://www.canlei.org/my-ie-road-video-explaining-many-experimental-return-campus-network.htm#comments Tue, 14 Sep 2010 13:33:20 +0000 残泪 http://www.canlei.org/?p=605 这个实验,感觉还行,大家看了,多多提意见,我努力改进

这个实验涉及,HSRP,DHCP中继,OSPF多区域,route-map

下载地址:残泪讲解多归路园区网实验

]]> http://www.canlei.org/my-ie-road-video-explaining-many-experimental-return-campus-network.htm/feed 3 [CCNA实验报告]十一:OSPF协议的AS间汇总 http://www.canlei.org/ccna-test-report-11-ospf-summary-of-the-agreement-between-as.htm http://www.canlei.org/ccna-test-report-11-ospf-summary-of-the-agreement-between-as.htm#comments Sun, 16 Nov 2008 12:31:46 +0000 残泪 http://www.canlei.org/?p=165 [CCNA实验报告]十一:OSPF协议的AS间汇总

OSPF协议的AS间汇总
一、  实验目的:学习AS手工汇总
二、  实验拓扑：

三、  实验步骤
首先在R1上宣告

然后在R2上宣告

R3的192.168.3.0使用RIPV2宣告，并关闭自动汇总

R4上使用RIPV2宣告

然后在R3上把外部路径引近来

结果，查看R1的路由表

R3上会自动生成一条指向空接口

]]> http://www.canlei.org/ccna-test-report-11-ospf-summary-of-the-agreement-between-as.htm/feed 0 [CCNA实验报告]十:OSPF协议的手工汇总 http://www.canlei.org/ccna-test-report-10-ospf-protocol-manual-summary.htm http://www.canlei.org/ccna-test-report-10-ospf-protocol-manual-summary.htm#comments Sun, 16 Nov 2008 12:24:13 +0000 残泪 http://www.canlei.org/?p=164 [CCNA实验报告]十:OSPF协议的手工汇总

OSPF协议的手工汇总
一、  实验目的:手工汇总
二、  实验拓扑：

三、  实验步骤
首先在R1宣告

R2上同样宣告

R3上一样

然后查看R3上的路由表

由于OSPF的汇总要在ABR上做，所以在R2上

结果，查看R3的路由表

]]> http://www.canlei.org/ccna-test-report-10-ospf-protocol-manual-summary.htm/feed 0 [CCNA实验报告]九:OSPF协议的NSSA http://www.canlei.org/ccna-test-report-9-ospf-protocol-nssa.htm http://www.canlei.org/ccna-test-report-9-ospf-protocol-nssa.htm#comments Sun, 16 Nov 2008 12:16:45 +0000 残泪 http://www.canlei.org/?p=163 [CCNA实验报告]九:OSPF协议的NSSA

OSPF协议的NSSA

一、  实验目的:了解OSPF的区域概念
二、  实验拓扑

三、  实验步骤
步骤一：配置路由器R1

步骤二：配置路由器R2

步骤三：配置路由器R3, 将RIP重分布进OSPF区域, 将OSPF重分布进RIP中

步骤四：配置路由器R4

结果测试
R1(config-router)#
*Jan 15 13:42:10.527: %OSPF-5-ADJCHG: Process 110, Nbr 2.2.2.2 on Serial2/1 from LOADING to FULL, Loading Done
R1(config-router)#do sh ip route
Codes: C – connected, S – static, 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
       i – IS-IS, su – IS-IS summary, 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

C    192.168.12.0/24 is directly connected, Serial2/1
     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Loopback0
     2.0.0.0/32 is subnetted, 1 subnets
O IA    2.2.2.2 [110/65] via 192.168.12.2, 00:02:07, Serial2/1
     3.0.0.0/32 is subnetted, 1 subnets
O IA    3.3.3.3 [110/129] via 192.168.12.2, 00:01:09, Serial2/1
O IA 192.168.23.0/24 [110/128] via 192.168.12.2, 00:02:07, Serial2/1
//以上路由表说明区域间的路由可以进入到NSSA区域的；但是在路由表中并没有出现在R3上把RIP重分布进来的路由，因此，说明LSA类型为5的外部路由不能在NSSA区域中传播，ABR也没能力把类型5的LSA转成7的LSA

]]> http://www.canlei.org/ccna-test-report-9-ospf-protocol-nssa.htm/feed 0 [CCNA实验报告]七:OSPF的网络类型 http://www.canlei.org/ccna-test-report-7-ospf-network-types.htm http://www.canlei.org/ccna-test-report-7-ospf-network-types.htm#comments Wed, 05 Nov 2008 16:28:21 +0000 残泪 http://www.canlei.org/?p=161 [CCNA实验报告]七:OSPF的网络类型

[CCNA实验报告]七:OSPF的网络类型

一、  实验目的:了解OSPF的网络类型
二、  实验拓扑

三、  实验步骤
点到点类型
首先在R1上宣告所有直连网段,修改router-id为1.1.1.1

然后在R2上同样宣告所有直连网段,修改router-id为2.2.2.2

结果

//进程ID为1991,Router ID为1.1.1.1,网络类型为point-to-point

//由于是点到点链路所以不用选DR/BDR

广播类型
把R1和R2的S1/0接口的网络类型改成broadcast
  
再查看接口的网络类型

//进程ID为1991,Router ID为1.1.1.1,网络类型为BROADCAST


默认的情况下是不会进行DR选举,再改变成广播网络类型后,选举了DR

]]> http://www.canlei.org/ccna-test-report-7-ospf-network-types.htm/feed 0 [CCNA实验报告]六:DRBDR的选举过程 http://www.canlei.org/ccna-test-report-6-drbdr-of-the-electoral-process.htm http://www.canlei.org/ccna-test-report-6-drbdr-of-the-electoral-process.htm#comments Wed, 05 Nov 2008 16:23:05 +0000 残泪 http://www.canlei.org/?p=160 [CCNA实验报告]六:DRBDR的选举过程

[CCNA实验报告]六:DRBDR的选举过程
一、  实验目的:了解DR/BDR的选举建立过程
二、  实验拓扑

三、  实验步骤
R1上配置ospf，并使用debug跟踪邻居建立过程
        
由于R2和R3没有开启OSPF,所以DR会是R1自己BDR为空

然后在R2上起OSPF,并使用debug跟踪OSPF的相关信息
R2#debug ip ospf events
OSPF events debugging is on
R2#config t
Enter configuration commands, one per line.  End with CNTL/Z.
R2(config)#router ospf 64
R2(config-router)#net 192.168.0.2 0.0.0.0 area 0

00:15:21: OSPF: Interface FastEthernet0/0 going Up
*Oct 15 00:40:31.803: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 192.168.0.2  //从F0/0接口向0区域以组播的方式发送hello包，组播地址224.0.0.5
00:15:25: OSPF: Rcv hello from 192.168.0.1 area 0 from FastEthernet0/0 192.168.0.1
00:15:25: OSPF: 2 Way Communication to 192.168.0.1 on FastEthernet0/0, state 2WAY
// R2收到R1的hello确认包，R1和R2进入双向通信 two-way 状态
00:15:25: OSPF: Send DBD to 192.168.0.1 on FastEthernet0/0 seq 0×4269 opt 0×00 flag 0×7 len 32
00:15:25: OSPF: End of hello processing
00:15:25: OSPF: Neighbor change Event on interface FastEthernet0/0
00:15:25: OSPF: DR/BDR election on FastEthernet0/0
00:15:25: OSPF: Elect BDR 192.168.0.2
00:15:25: OSPF: Elect DR 192.168.0.1
00:15:25:        DR: 192.168.0.1 (Id)   BDR: 192.168.0.2 (Id)
//因为R1已经选举成为DR，所以R2成为DBR

然后在 R3上配置ospf：
R3(config)#router ospf 64
R3(config-router)#network 192.168.0.3 0.0.0.0 area 0
R3(config-router)#exit
R3#show ip ospf interface
FastEthernet0/0 is up, line protocol is up
  Internet Address 192.168.0.3/24, Area 0
  Process ID 64, Router ID 192.168.0.3, Network Type BROADCAST, Cost: 1
  Transmit Delay is 1 sec, State DROTHER, Priority 1
//由于DR和BDR都已经选举完成,所以R3的状态是DROTHER,优先级为1
DR和BDR选举完成后,新加入的路由器不会进行选举
  Designated Router (ID) 192.168.0.2, Interface address 192.168.0.2
  Backup Designated router (ID) 192.168.0.1, Interface address 192.168.0.1
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:08
  Index 1/1, flood queue length 0
  Next 0×0(0)/0×0(0)
  Last flood scan length is 0, maximum is 1
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 2, Adjacent neighbor count is 2
    Adjacent with neighbor 192.168.0.1  (Backup Designated Router)
    Adjacent with neighbor 192.168.0.2  (Designated Router)
  Suppress hello for 0 neighbor(s)

在R1、R2、R3上刷新ospf进程，可以看到 R3成为DR：
R3#show ip ospf int
FastEthernet0/0 is up, line protocol is up
  Internet Address 192.168.0.3/24, Area 0
  Process ID 64, Router ID 192.168.0.3, Network Type BROADCAST, Cost: 1
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 192.168.0.3, Interface address 192.168.0.3
  Backup Designated router (ID) 192.168.0.2, Interface address 192.168.0.2
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:08
  Index 1/1, flood queue length 0
  Next 0×0(0)/0×0(0)
  Last flood scan length is 0, maximum is 1
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 2, Adjacent neighbor count is 2
    Adjacent with neighbor 192.168.0.1
    Adjacent with neighbor 192.168.0.2  (Backup Designated Router)
  Suppress hello for 0 neighbor(s)

]]> http://www.canlei.org/ccna-test-report-6-drbdr-of-the-electoral-process.htm/feed 0 [CCNA实验报告]五:OSPF单区域基本配置 http://www.canlei.org/ccna-test-report-5-ospf-basic-configuration-single-region.htm http://www.canlei.org/ccna-test-report-5-ospf-basic-configuration-single-region.htm#comments Wed, 05 Nov 2008 16:18:46 +0000 残泪 http://www.canlei.org/?p=159 [CCNA实验报告]五:OSPF单区域基本配置
一、  实验目的:了解OSPF的基本配置
二、  实验拓扑

三、  实验步骤
首先在R1上起OSPF协议,进程号为1991,并宣告R1的直连网络,区域为0
注意:进程号可以不同,区域一定要相同

然后在R2上同样起OSPF协议, 进程号为1991,并宣告R1的直连网络,区域为0

最后在R3上同样起OSPF协议, 进程号为1991,并宣告R1的直连网络,区域为0

最后进行测试,查看R1和R3的路由表

]]> http://www.canlei.org/ccna-test-report-5-ospf-basic-configuration-single-region.htm/feed 0