Static root and default route

Static Routing Configuration 1

 

 

 

Set PC machine ip, gateway , open interfaces , static routing (target segment + subnet mask + next hop address)

To Router1 A Case Study

Router>

Router>enable

Router#configure terminal

Router(config)#int f0/0

Router(config-if)#ip address 192.168.1.3 255.255.255.0

Router(config-if)#no shutdown

Router(config-if)#exit

Router(config)#int f0/1

Router (config-IF) #ip address 192.168.2.1 255.255.255.0       (two interfaces provided ip address)

Router(config-if)#no shutdown

Router(config-if)#exit

Router(config)#ip route 192.168.3.0 255.255.255.0 192.168.2.2

Router (config) #ip 255.255.255.0 route 192.168.4.0 192.168.2.2 (next hops to reach 3.0 and 4.0 network segment)

Router(config)#

 

Similarly two other routers

 

In this topology, all three router as the default route, the intermediate position is set to a static route setting static routing or two sides.

Set the default routing method

Router (config) #ip route0.0.0.0 0.0.0.0 next-hop address

Router#show ip route

 

 

Static Routing Configuration 2

 

 

 

Set PC machine ip, gateway , set the router 's ip and open its interface , static routing (target segment + subnet mask + next hop address), and the default route ( 0.0.0.0 0.0.0.0 next-hop address)

1 , . 4 No. router set to default route ( default route )

2 , 3 Hao router is set to static route ( static route )

 

. 1 No. router setting process

Router>

Router>enable

Router#configure terminal

Router(config)#int f0/0

Router(config-if)#ip address 192.168.1.3 255.255.255.0

Router(config-if)#no shutdown

Router(config-if)#

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

 

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

 

Router(config-if)#exit

Router(config)#int f0/1

Router(config-if)#ip address 192.168.2.1 255.255.255.0

Router(config-if)#no shutdown

 

Router(config-if)#

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

 

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

 

Router(config-if)#exit

Router(config)#ip route 0.0.0.0.0 0.0.0.0 192.168.2.2

Router(config)#

. 4 No. router analogy . 1 No.

. 3 No. router set as follows

Router> and

Router#configure  terminal

Router(config)#int f0/0

Router(config-if)#ip address 192.168.3.2 255.255.255.0

Router(config-if)#no shutdown

 

Router(config-if)#

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

 

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

 

Router(config-if)#exit

Router(config)#int f0/1

Router(config-if)#ip address 192.168.4.1 255.255.255.0

Router(config-if)#no shutdown

 

Router(config-if)#

%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

 

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

 

Router(config-if)#exit

Router(config)#ip route 192.168.5.0 255.255.255.0 192.168.4.2

Router(config)#ip route 192.168.2.0 255.255.255.0 192.168.3.1

Router(config)#ip route 192.168.1.0 255.255.255.0 192.168.3.1

Router(config)#exit

Router#

 

Router#show ip route

Gateway of last resort is not set

 

S 192.168.1.0/24 [1/0] via 192.168.3.1

S 192.168.2.0/24 [1/0] via 192.168.3.1

C    192.168.3.0/24 is directly connected, FastEthernet0/0

C    192.168.4.0/24 is directly connected, FastEthernet0/1  (直连)

192.168.5.0/24 S [1/0] Via 192.168.4.2    (static)

 

2 No. router provided analogy . 3 No.

 

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Origin www.cnblogs.com/a1972/p/11576269.html