路由策略小案例
路由策略和策略路由不一样，策略路由是先执行策略后查看路由；路由策略是先执行路由再查看策略。
R1:
conf ter
int loo 0
ip add 10.1.1.1255.255.255.0
no shu
int loo 1
ip add 10.1.2.1255.255.255.0
no shu
int loo 2
ip add 10.1.3.1255.255.255.0
no shu
ex
int f1/0
ip add 10.1.4.1255.255.255.0
no shu
exit
router rip
ver 2
no au
net 10.0.0.0 //只宣告主类网
exit
R2:
conf ter
int f1/0
ip add 10.1.4.2255.255.255.0
no shu
int f1/1
ip add 10.1.5.1255.255.255.0
no shu
exit
router ospf 100
net 10.1.5.00.0.0.255 ar 0
exit
router rip
ver 2
no au
passive-interface f1/1 //设置接口为被动接口，使其只接受外部rip宣告，自己不宣告rip
net 10.0.0.0
exit
R3:
conf ter
int f1/0
ip add 10.1.5.2255.255.255.0
no shu
exit
int loo 0
ip add 10.1.6.1255.255.255.0
no shu
int loo 1
ip add 10.1.7.1255.255.255.0
no shu
int loo 2
ip add 10.1.8.1255.255.255.0
no shu
exit
router ospf 100
net 10.1.5.00.0.0.255 ar 0
net 10.1.6.00.0.0.255 ar 0
net 10.1.7.00.0.0.255 ar 0
net 10.1.8.00.0.0.255 ar 0
exit
R2:
access-list 1 permit 10.1.3.0 0.0.0.255 //ACL过滤需要处理的网段
route-map test01 deny 10
match ip address 1//执行"拒绝ACL 1 的网段"
exit
route-map test01permit 15
exit
router os 100//打开目标协议
redistribute rip subnets route-map test01//将rip重分布到ospf
exit
access-list 2 permit 10.1.7.0 0.0.0.255 //ACL过滤需要处理的网段
route-map test02permit 10
match ip address 2
set metric 8//执行"ACL2的网段metric 8"
exit
route-map test02permit 15
set metric 5//执行"其他网段metric 5"
exit
router rip//打开目标协议
redistribute ospf 100 rpute-map test02//将ospf重分布到rip
exit
测试：
R1：
R1#show ip ro
Codes: L - local, 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 - OSPFexternal type 2
i - IS-IS, su - IS-IS summary, L1 -IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidatedefault, U - per-user static route
o - ODR, P - periodic downloaded staticroute, + - replicated route
Gateway of lastresort is not set
10.0.0.0/8 is variably subnetted, 12subnets, 2 masks
C 10.1.1.0/24 is directly connected,Loopback0
L 10.1.1.1/32 is directly connected,Loopback0
C 10.1.2.0/24 is directly connected,Loopback1
L 10.1.2.1/32 is directly connected,Loopback1
C 10.1.3.0/24 is directly connected,Loopback2
L 10.1.3.1/32 is directly connected,Loopback2
C 10.1.4.0/24 is directly connected,FastEthernet1/0
L 10.1.4.1/32 is directly connected,FastEthernet1/0
R 10.1.5.0/24 [120/1] via 10.1.4.2,00:00:27, FastEthernet1/0
R 10.1.6.1/32 [120/5] via 10.1.4.2,00:00:27, FastEthernet1/0
R 10.1.7.1/32 [120/8] via 10.1.4.2,00:00:27, FastEthernet1/0
R 10.1.8.1/32 [120/5] via 10.1.4.2,00:00:27, FastEthernet1/0
R3:
R3#show ip ro
Codes: L - local, 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 - OSPFexternal type 2
i - IS-IS, su - IS-IS summary, L1 -IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidatedefault, U - per-user static route
o - ODR, P - periodic downloaded staticroute, + - replicated route
Gateway of lastresort is not set
10.0.0.0/8 is variably subnetted, 11subnets, 2 masks
O E2 10.1.1.0/24 [110/20] via 10.1.5.1,00:00:44, FastEthernet1/0
O E2 10.1.2.0/24 [110/20] via 10.1.5.1,00:00:44, FastEthernet1/0
O E2 10.1.4.0/24 [110/20] via 10.1.5.1,00:00:44, FastEthernet1/0
C 10.1.5.0/24 is directly connected,FastEthernet1/0
L 10.1.5.2/32 is directly connected,FastEthernet1/0
C 10.1.6.0/24 is directly connected,Loopback0
L 10.1.6.1/32 is directly connected,Loopback0
C 10.1.7.0/24 is directly connected,Loopback1
L 10.1.7.1/32 is directly connected,Loopback1
C 10.1.8.0/24 is directly connected,Loopback2
L 10.1.8.1/32 is directly connected,Loopback2