ACL(Access Control List)
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Software Define
🔐 Subnet Mask vs Wildcard Mask📌 The BasicsWhen configuring network devices (especially Access Control Lists, ACLs), two common operations are:Permit (allow) packetsDeny (block) packetsThe logic of which packets are matched is determined by masks.Subnet Mask → Defines the network portion (must follow the rule of consecutive 1s, then 0s).Wildcard Mask → Defines matching rules (0 = exact match re..
Subneting Skil
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Software Define
purpose : For the purpose of efficiently segmenting the network I like to explain subnetting using a pizza analogy.The entire pizza represents the whole IP network.Cutting the pizza into slices is like creating subnets, where each slice has a defined size determined by the subnet mask.This way, each department or function gets just the right portion they need, improving efficiency and securit..
두개의 데이터센터에 있는 ISE 를 연결시키는 작업
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Software Define/ISE
1005 trnet-default act/unsup C3650-24-PS#show ip int b Interface IP-Address OK? Method Status Protocol Vlan1 unassigned YES NVRAM up up Vlan11 10.1.1.253 YES manual up up Vlan21 10.2.1.253 YES manual up up 문제는 집에서 홈랩으로 연습하기..
ISE management IP check
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Software Define/ISE
show interface DNAC 과의 통신 체크 ping 10.1.1.12 / DNAC 은 현재 10.1.1.12 입니다 관리 PC와의 통신체크ping 10.1.1.16 / 관리 PC는 현재 10.1.1.16 입니다
DNA Center Manegement IP Change
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Software Define/DNA Center
로그인 IDmaglev 패스워드 패스워드 넣기 관리 아이피 확인ip addr 현재 IP 이다. ens160 10.1.1.12/24 ens192 192.168.68.111/24 두개를 바꾸고자 한다 sudo nano /etc/network/interfaces 수정후 Ctrl + O 파일 이름 변경하지 않고 그대로 저장Enter nano 편집기 종료Ctrl + X 네트워크 재시작 목표 성공
DNAC Integration Settings
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Software Define/DNA Center
I got an incredible amount of love... Wow... Watching Home Lab... I'm learning things that I really didn't know, and it gives me goosebumps... No matter how many times you search Settings to connect with ISE after installing the DNAC There's no menu.. So what I thought... Oh, I must have installed it wrong, and I shoveled it a lot... (bottom) I used to go around the menu, read Cisco documents,..
Installed Cisco DNAC 1.3.1 today.
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Software Define/DNA Center
For CCIE EW Lab v 1.0 and CCIE EI or etc.... I would like to intergrade DNAC with ISE Downloaded ISO Image DNAC 1.3.1 and DNAC 2.3.5 and 1.3.3It was very difficult for me to get a DNA ISO image I was able to get it with the help of xx... Thank you... There are 3 versions of DNA that I have DNAC 1.3.1 (CCIE EW)DNAC 1.3.3 DNAC 2.3.5 And my lab environment is ESXI 6.7 version I have a Dell R630 ..
show wireless country configured
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Software Define/Wireless
show wireless country configuredEnglish Explanation (Simple and Clear)The error message you’re seeing, "The process for the command is not responding or is otherwise unavailable", when you run the command show wireless country configured on your Cisco switch (MALRB01-S1) means that the switch is having trouble processing your command. Let’s figure out why this might be happening.1. What Does the..
802.11b (2.4GHz)
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Software Define/Wireless
English Explanation (Very Very Very Simple)802.11b is an older type of Wi-Fi that uses the 2.4 GHz frequency band. It was one of the first Wi-Fi standards to bring wireless internet to devices like computers and phones. Imagine it as a radio signal on the 2.4 GHz "channel"—it sends and receives data. It’s slower than newer Wi-Fi types (like 802.11a or later ones), but it can go farther and throu..
802.11a 5 GHz [3504 WLC]
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Software Define/Wireless
config 802.11a disable network English Explanation (Very Very Very Simple) The command config 802.11a disable network is used on a Cisco Wireless LAN Controller (WLC), such as the 3504 model you mentioned, to disable the entire 802.11a radio network globally across the controller. In wireless networking, 802.11a refers to the standard that operates in the 5 GHz frequency band. When you execute t..