静态路由：静态路由是一种路由的方式，路由项由手动配置，而非动态决定。与动态路由不同，静态路由是固定的，不会改变，即使网络状况已经改变或是重新被组态。一般来说，静态路由是由网络管理员逐项加入路由表。静态路由适用于小型网络。
动态路由：动态路由是指路由器能够自动地建立自己的路由表，并且能够根据实际情况的变化适时地进行调整。常见的动态路由协议包括RIP、OSPF、IS-IS、BGP等。这里主要讲的是OSPF。OSPF(Open Shortest Path First)开放式最短路径优先)是一个内部网关协议(Interior Gateway Protocol,简称IGP)，用于在单一自治系统(autonomous system,AS)内决策路由。与RIP相对，OSPF是链路状态路由协议，而RIP是距离向量路由协议。
不同路由的优先级（数值越小，优先级越高）
直连 --- 0
ospf内部 --- 10
ISIS --- 15
static -- 60
rip ---- 100
BGP --- 255
要求：要使PC1 pingt PC2
静态路由配置：
PC1
PC2
AR1
<Huawei>sysEnter system view, return user view with Ctrl+Z.[Huawei]sysname AR1[AR1]undo in[AR1]undo info-center e[AR1]undo info-center enable Info: Information center is disabled.[AR1]int g0/0/1[AR1-GigabitEthernet0/0/1]ip address 192.168.1.2 24[AR1-GigabitEthernet0/0/1]int g0/0/0[AR1-GigabitEthernet0/0/0]ip address 10.1.1.1 24 [AR1]int LoopBack 0[AR1-LoopBack0]ip address 1.1.1.1 32[AR1]ip route-static 192.168.2.0 255.255.255.0 10.1.1.2
AR2
<Huawei>sysEnter system view, return user view with Ctrl+Z.[Huawei]undo in[Huawei]undo info-center e[Huawei]undo info-center enable Info: Information center is disabled.[Huawei]sysname AR2[AR2]int g0/0/0[AR2-GigabitEthernet0/0/0]ip address 10.1.1.2 24[AR2-GigabitEthernet0/0/0]int g0/0/1[AR2-GigabitEthernet0/0/1]ip address 10.1.2.2 24[AR2-GigabitEthernet0/0/1]q[AR2]int LoopBack 0[AR2-LoopBack0]ip ad[AR2-LoopBack0]ip address 2.2.2.2 32[AR2-LoopBack0]q[AR2]ip route-static 192.168.1.0 255.255.255.0 10.1.1.1[AR2]ip route-static 192.168.2.0 255.255.255.0 10.1.2.1
AR3
<Huawei>sysEnter system view, return user view with Ctrl+Z.[Huawei]undo info-center enable Info: Information center is disabled.[Huawei]int g0/0/1[Huawei-GigabitEthernet0/0/1]ip address 10.1.2.1 24[Huawei-GigabitEthernet0/0/1]int g0/0/2[Huawei-GigabitEthernet0/0/2]ip address 192.168.2.2 24[Huawei-GigabitEthernet0/0/2]q[Huawei]int LoopBack 0[Huawei-LoopBack0]ip a[Huawei-LoopBack0]ip address 3.3.3.3 32[Huawei-LoopBack0]q[Huawei]ip route-static 192.168.1.0 255.255.255.0 10.1.2.2 [Huawei]SYSNAME AR3[AR3]
PC1ping PC2
OSPF配置
先删除AR1、AR2 、AR3的静态路由
AR1[AR1]undo ip route-static 192.168.2.0 255.255.255.0 10.1.1.2AR2[AR2]undo ip route-static 192.168.1.0 255.255.255.0 10.1.1.1[AR2]undo ip route-static 192.168.2.0 255.255.255.0 10.1.2.1AR3[AR3]undo ip route-static 192.168.1.0 255.255.255.0 10.1.2.2
AR1
[AR1]router id 1.1.1.1Info: Router ID has been modified, please reset the relative protocols manually to update the Router ID.[AR1]ospf[AR1-ospf-1]area 0[AR1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255[AR1-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255[AR1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0[AR1-ospf-1-area-0.0.0.0]q
AR2
[AR2]router id 2.2.2.2 Info: Router ID has been modified, please reset the relative protocols manually to update the Router ID.[AR2]ospf[AR2-ospf-1]area 0[AR2-ospf-1-area-0.0.0.0]netw[AR2-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255[AR2-ospf-1-area-0.0.0.0]network 10.1.2.0 0.0.0.255[AR2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
AR3
[AR3]router id 3.3.3.3Info: Router ID has been modified, please reset the relative protocols manually to update the Router ID.[AR3]ospf[AR3-ospf-1]area 0[AR3-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255[AR3-ospf-1-area-0.0.0.0]network 10.1.2.0 0.0.0.255[AR3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
PC1ping PC2
查看AR2的路由表
<AR2>dis ip routing-tableRoute Flags: R - relay, D - download to fib------------------------------------------------------------------------------Routing Tables: PublicDestinations : 15 Routes : 15 Destination/Mask Proto Pre CostFlags NextHop Interface1.1.1.1/32 OSPF 10 1 D 10.1.1.1 GigabitEthernet0/0/02.2.2.2/32 Direct 0 0 D 127.0.0.1 LoopBack03.3.3.3/32 OSPF 10 1 D 10.1.2.1 GigabitEthernet0/0/110.1.1.0/24 Direct 0 0 D 10.1.1.2 GigabitEthernet0/0/010.1.1.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/010.1.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/010.1.2.0/24 Direct 0 0 D 10.1.2.2 GigabitEthernet0/0/110.1.2.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/110.1.2.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet0/0/1127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.1.0/24 OSPF 10 2 D 10.1.1.1 GigabitEthernet0/0/0192.168.2.0/24 OSPF 10 2 D 10.1.2.1 GigabitEthernet
