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Cisco Packet Tracer Notes

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Cisco Packet Tracer Notes

三種mode

靜態路由基本

Question 1

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# 先拉路由器、交換器、PC、線
# 一開始問你要不要設定答 no
# 進入 Privileged Mode
en
enable
# 進入 Configure Mode
conf t
config terminal
hostname 隨意名稱
# 左
interface gigabitEthernet 0/0
ip address 192.168.1.1 255.255.255.0
no shutdown
interface gigabitEthernet 0/1
ip address 192.168.2.1 255.255.255.0
no shutdown
# privileged mode中儲存剛剛的設定
wr
write
copy running-config startup-config
# 右
interface gigabitEthernet 0/0
ip address 192.168.2.2 255.255.255.0
no shutdown
interface gigabitEthernet 0/1
ip address 192.168.3.1 255.255.255.0
no shutdown
# 看一下剛剛有沒有設對
show ip interface brief
# 設定PC ip 靜態的
# 太遠傳不到
# (左) 先看看routing table長怎樣
show ip route
# 果然沒有192.168.3.x這個網段，因此這裡設靜態路由
# Configure Mode下
# 左
ip route 192.168.3.0 255.255.255.0 192.168.2.2
# S    192.168.3.0/24 [1/0] via 192.168.2.2
# 意思是.3.0這個網段會經由.2.2的路由器負責射出
# 右
ip route 192.168.1.0 255.255.255.0 192.168.2.1
# 暢通了
# 設定user mode跟privileged mode的密碼
# 這個是剛進去時輸入的密碼
conf t
line console 0
password 123
login
# 打enable後輸入的密碼
conf t
enable secret 123
# 檢查剛剛的所有設定，用空白鍵來換頁
show running-config
show startup-config

靜態路由進階

Question 2

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# subnetting a /24 Network(200.200.200.*)
# /27 = 255.255.255.224(.11100000)
# 最多可以分成8個子網路，一個子網路30個hosts
# 左
interface gigabitEthernet 0/0
ip address 200.200.200.62 255.255.255.224
no shutdown
interface gigabitEthernet 0/1
ip address 200.200.200.94 255.255.255.224
no shutdown
interface gigabitEthernet 0/2
ip address 200.200.200.1 255.255.255.224
no shutdown
# 200.200.200.96(.01100000), 200.200.200.128(.10000000)
ip route 200.200.200.96 255.255.255.224 200.200.200.2
ip route 200.200.200.128 255.255.255.224 200.200.200.2
# 右
interface gigabitEthernet 0/0
ip address 200.200.200.126 255.255.255.224
no shutdown
interface gigabitEthernet 0/1
ip address 200.200.200.158 255.255.255.224
no shutdown
interface gigabitEthernet 0/2
ip address 200.200.200.2 255.255.255.224
no shutdown
# .32(.00100000)(.32~.63)
# (.32為網段 All 0s (binary) : Network segment)
# (.62當default gateway)
# (.63當All 1s (binary) : Broadcast address)
# 可用ip: .33~.62, 30個hosts
ip route 200.200.200.32 255.255.255.224 200.200.200.1
# .64(.01000000)
# 可用ip: .65~.94
ip route 200.200.200.64 255.255.255.224 200.200.200.1
# PC 0
IP Address: 200.200.200.33
Subnet Mask: 255.255.255.224
Default Gateway: 200.200.200.62
# 最後設密碼
conf t
line console 0
password 123
login
conf t
enable secret 123