Subnet of Class C

IP Host Add: 192.168.50.121
Subnet Mask: 255.255.255.248
192.168.5.121 = 11000000/10101000/00110010/01111001
255.255.255.248= 11111111/11111111/11111111/11111000
Subnet = 11000000/10101000/00110010/01111000
Broadcast = 11000000/10101000/00110010/01111111
Subnet Address = host part all 0
usable host address = 192.168.50.121-126
Broadcast Address = host part all 1

example

IP Host add: 192.168.7.0
subnet mask: 255.255.255.0
Network: 8
Host
1. seoul = 120
2. busan = 50
3. dokdo = 20
デバイス間2 ip
Seoul
1.vlan 10:192.168.7.0/26<使用可能範囲:1～63>
2.vlan 20:192.168.7.64/27<利用可能範囲:65～95>
3.vlan 30:192.168.7.96/27<有効範囲:97～127>
Busan
1.vlan 10:192.168.7.128/27<利用可能範囲:129-159>
2.vlan 20:192.168.7.160/27<利用可能範囲:161~191>
Dokdo
192.168.7.192/27<利用可能範囲:193～222>
デバイス間ip/8ネットワーク2個
192.168.7.224 | 228 | 232 | 236 | 240

Router to Switch telnet login

1. switch setting

//모든 설정은 (config)에서
# enable password cisco
# line vty 0 4
# exec-timeout 0 0
# password cisco
# transport input telnet (ssh) //error 시 삭제
# int vlan 1
# ip add 192.168.1.194 255.255.255.224
# no shut
# ip default-gateway 192.168.1.222

2. router setting

#telnet 192.168.1.194
password: cisco
switch> en
password: cisco
switch# //switch로 telnet 실행

3. ubuntu setting

(base)~$ telnet 192.168.200.100
password: cisco
Router> en
password: cisco
Router# telnet 192.168.1.194
password: cisco
switch> en
password: cisco
switch# //router를 통해 switch로 telnet login

PYQT5 setting

(base)~$ sh pycharm.sh //pycharm 실행
(base)~$ designer //pyqt 실행

pycharm setting

1. pycharm terminal

/pythonProject$ sudo apt install pyqt5-dev-tools //pyqt5 설치
/pythonProject$ pip install pyqt5
/pythonProject$ pyuic5 main.ui -o main.py //main.ui을 main.py로 변환

2. main.pyコードの変更

1) run main.py実行時のmain。ui運転設定

2)id,pwdm ip add入力後運転ボタンをクリック

def setupUi(self, MainWindow):

def clickExec(self):

3) result

VPN setting

annyconnect-win-4.4~ download

groupname、accountname、パスワード

を入力します.