Static route settings and related commands

This section mainly uses experiments on static routing settings to help readers deeply understand the concept of routing, and Master Common commands such as static routing settings, viewing route tables, and setting up classless routes.

1. Tutorial Purpose

Through this experiment, you can master the following skills:
Set static routes
Set to enable the router routing function
View route table
Use of ping and trace commands

2. device requirements

Three Cisco routers, one of which has two Ethernet interfaces, and the other two have at least one Ethernet interface;
Two hubs and four twisted pair wires (you can also use two crossover cables to directly connect the three routers)
One Terminal Server, such as the cisco 2509 router, and the corresponding cable used for reverse Telnet;
One PC with Super Terminal Program, as well as the Console cable and adapter.

3. topology and Configuration

The topology of this experiment is 4-2.

The three routers are named R1, R2, and R3 respectively. The interfaces used and the corresponding IP addresses are marked in section 4.2. The "/24" in the figure indicates that the subnet mask is 24 bits, that is, 255.255.255.0.
Static Routing settings should be used in the experiment. To achieve the connectivity between R2 and R3 on the IP layer, that is, ping from R2 to R3 is required, and vice versa.

4. Experiment configuration and monitoring results

First, configure the Ethernet interfaces of each vro according to the requirements of the topology.
The following experiment records start from the interface configuration. For details, see configuration list 4-1.

Configuration list 4-1 configure and Monitor static routes

Section 1st: Test basic connectivity Term_Server #1 [Resuming connection I to R1...] R1 # ping 10.1.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 MS Ripping 172.16.1.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.3, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 4/4/4 MS R1 # (Type ctrl + shift + 6, x, and switch back to the terminal server) Term_Server #2 [Resuming connection 2 to R2...] R2 # ping 172.16.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds: ..... R2 # sh ip route Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP D-VPN, EX-VPN external, 0-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, E-EGP I-IS, L1-IS level-1, L2-IS level-2, ia-IS inter area *-Candidate default, U-per-user static route, o-ODR P-periodic downloaded static route Gateway of last resort is not set Section 2nd: Add a static route and test connectivity R2 # conft Enter configuration commands, one per line. End with CNTL/Z, R2 (config) # ip route 172.16.1.0 255.255.255.0 10.1.1.1 R2 (config) # end R2 # sh ip route Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP D-VPN, EX-VPN external, 0-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, E-EGP I-IS, L1-IS level-1, L2-IS level-2, ia-IS inter area *-Candidate default, U-per-user static route, o-ODR P-periodic downloaded static route Gateway of last resort is not set 　 172.16.0.0/24 is subnetted, 1 subnets S 172.16.1.0 [1/0] via 10.1.0.1 10.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, EthernetO R2 # ping 172.16.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds: HW R2 # ping 172.16.1.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos 10172.16.1.3, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2 # (Type ctrl + shift + 6, x, and switch back to the terminal server) Term_Server #3 [Resuming connection 3 to R3...] R3 # conft Enter configuration commands, one per line. End with CNTL/Z. R3 (config) # ip route 10.1.1.0 255.255.255.0 172.16.1.1 R3 (config) # ^ Z R3 # ping 10.1.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/8 MS R3 # R3 # sh ip route Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP D-VPN, EX-VPN externa1, 0-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, E-EGP I-IS, LI-IS level-1, L2-IS level-2, ia-IS inter area *-Candidate default, U-per-user static route, o-ODR P-periodic downloaded static route Gateway of last resort is not set 172.16.0.0/24 is subnetted, 1 subnets C172.16.1.0 is directly connected, EthernetO 10.0.0.0/24 is subnetted, 1 subnets S10.1.1.0 [1/0] via 172.16.1.1 . R3 # Term_Server #1 [Resuming connection I to R1...] R1 # sh ip route Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP D-VPN, EX-VPN external, 0-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, E-EGP I-IS, LI-IS level-1, L2-IS level-2, ia-IS inter area *-Candidate default, U-per-user static route, o-ODR P-periodic downloaded static route Gateway of last resort is not set 172.16.0.0/24 is subnetted, 1 subnets C172.16.1.0 is directly connected Ethernet0 10.0.0.0/24 is subnetted, 1 subnets C10.1.1.0 is directly connected Ethernet0 R1 # (Type ctrl + shift + 6, and switch x back to the terminal server) Term_Server #2 [Resuming connection 2 to R2...] R2 # sh ip route Codes: C-connected, S-static, I-IGRP, R-RIP, M-mobile, B-BGP D-VPN, EX-VPN external, 0-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, E-EGP I-IS, LI-IS level-1, L2-IS level-2, ia-IS inter area *-Candidate default, U-per-user static route, o-ODR P-periodic downloaded static route Gateway of last resort is not set S 172.16.0.0/24 is subnetted, 1 subnets 10.0.0.0/24 is subnetted, 1 subnets C 10.1.1.0 is directly connected, Ethernet0 R2 # (Type ctrl + shift + 6, and switch x back to the terminal server) Section 3rd: Use the trace command Term_Server #3 [Resuming connection 3 to R3...] R3 # trace 10.1.1.2 Type escape sequence to abort. Tracing the route to 10.1.1.2 1 172.16.1.14msec 4 msec 4 msec

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