Installing Cisco Routers
Installing Enterprise Routers
- CSU/DSU: Channel Service Unit/Data Service Unit
Installing SOHO Routers
Enabling IPv4 Support on Cisco Router Interfaces
Router Interfaces
Interface Status Codes
R1#show interfaces g0/0/0
GigabitEthernet0/0/0 is up, line protocol is up (connected)
Hardware is ISR4331-3x1GE, address is 0050.0fd9.a701 (bia 0050.0fd9.a701)
Internet address is 172.16.1.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
Full Duplex, 1000Mbps, link type is auto, media type is Auto Select
output flow-control is on, input flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00,
Last input 00:00:08, output 00:00:05, output hang never
Last clearing of "show interface" counters never
Input queue: 0/375/0 (size/max/drops); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1017 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
GigabitEthernet0/0/0 is up, line protocol is up (connected)
Router Inteface IP Addresses
- packet tracer上でrouterにserial接続するには電鍵を落としてNIM(Network Interface Module)を挿す必要がある
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface g0/0/0
Router(config-if)#ip address 172.16.1.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface GigabitEthernet0/0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0/0, changed state to up
Router(config-if)#interface s0/1/0
Router(config-if)#ip address 172.16.4.1 255.255.255.0
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial0/1/0, changed state to down
Router(config-if)#
Router(config-if)#interface g0/0/1
Router(config-if)#ip address 172.16.5.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface GigabitEthernet0/0/1, changed state to up
Router(config-if)#end
Router#
%SYS-5-CONFIG_I: Configured from console by console
- serialは両端でno shutdownしないと
line protocol is downになる
- 各種interfaceが使えること・割り当てたIPアドレスの確認
Router#show protocols
Global values:
Internet Protocol routing is enabled
GigabitEthernet0/0/0 is up, line protocol is up
Internet address is 172.16.1.1/24
GigabitEthernet0/0/1 is up, line protocol is down
Internet address is 172.16.5.1/24
GigabitEthernet0/0/2 is administratively down, line protocol is down
Serial0/1/0 is up, line protocol is up
Internet address is 172.16.4.1/24
Serial0/1/1 is administratively down, line protocol is down
Serial0/2/0 is administratively down, line protocol is down
Serial0/2/1 is administratively down, line protocol is down
Vlan1 is administratively down, line protocol is down
Router#show ip interface brief
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0/0 unassigned YES unset administratively down down
GigabitEthernet0/0/1 unassigned YES unset administratively down down
GigabitEthernet0/0/2 unassigned YES unset administratively down down
Serial0/1/0 unassigned YES unset administratively down down
Serial0/1/1 unassigned YES unset administratively down down
Serial0/2/0 unassigned YES unset administratively down down
Serial0/2/1 unassigned YES unset administratively down down
Vlan1 unassigned YES unset administratively down down
Router Auxiliary Port
