SlideShare a Scribd company logo
1 of 44
Download to read offline
KỸ THUẬT TẤN CÔNG VÀ
PHÒNG THỦ TRONG
MẠNG LAN
© 2012 Cisco and/or its affiliates. All rights reserved. 1
MẠNG LAN
MẠNG NGÀY NAY
CÔNG CỤ vs KỸ NĂNG
NỘI DUNG
 Khái niệm và sự ảnh hưởng của Sniffing trong
mạng doanh nghiệp
 Hoạt động của Sniifing
 Các phương thức tấn công dựa trên Sniifing Các phương thức tấn công dựa trên Sniifing
MAC Flooding Attack
DEMO
• Question & AnswerQuestion & Answer
Phương thức tấn công
• Tấn công từ chối dịch vụ DHCP
• Tấn công giả mạo DHCP Server
ARP Poisoning
Configuring DAI
DEMO
• Question & AnswerQuestion & Answer
Catalyst Integrated Security
Configuration
sw(config)# ip dhcp snooping
sw(config)# ip dhcp snooping vlan 10,20
sw(config)# ip arp inspection vlan 10,20
sw(config)# interface fastethernet 0/1
sw(config-if)# description Access Port
sw(config-if)# switchport mode access
sw(config-if)# switchport access vlan 10
sw(config-if)# switchport port-security maximum 2sw(config-if)# switchport port-security maximum 2
sw(config-if)# switchport port-security violation restrict
sw(config-if)# switchport port-security
sw(config-if)# ip dhcp limit rate 50
sw(config-if)# ip verify source port-security
sw(config)# interface fastethernet 0/24
sw(config-if)# description Uplink
sw(config-if)# switchport mode trunk
sw(config-if)# switchport trunk allowed vlan 10,20
sw(config-if)# ip dhcp snooping trust
sw(config-if)# ip arp inspection trust
Etherflood
• Question & Answer
Tổng kết
• Giảm thiểu nguy cơ tấn công sniffer trong
mạng lan của doanh nghiệp chúng ta nên kết
hợp 1 số phương thức :
– Port Security– Port Security
– Dynamic ARP Inspection
– IP Source guard
– Hạn chế truy cập, xác thực bằng AAA, mã hóa
thông tin…

More Related Content

Featured

Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTExpeed Software
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)contently
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsKurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summarySpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best PracticesVit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project managementMindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...RachelPearson36
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Applitools
 

Featured (20)

Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
 

Kỹ thuật tấn công và phòng thủ

  • 1. KỸ THUẬT TẤN CÔNG VÀ PHÒNG THỦ TRONG MẠNG LAN © 2012 Cisco and/or its affiliates. All rights reserved. 1 MẠNG LAN
  • 3. CÔNG CỤ vs KỸ NĂNG
  • 4. NỘI DUNG  Khái niệm và sự ảnh hưởng của Sniffing trong mạng doanh nghiệp  Hoạt động của Sniifing  Các phương thức tấn công dựa trên Sniifing Các phương thức tấn công dựa trên Sniifing
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 16.
  • 17. DEMO • Question & AnswerQuestion & Answer
  • 18.
  • 19.
  • 20. Phương thức tấn công • Tấn công từ chối dịch vụ DHCP • Tấn công giả mạo DHCP Server
  • 21.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 28.
  • 29.
  • 31. DEMO • Question & AnswerQuestion & Answer
  • 32.
  • 33.
  • 34.
  • 35.
  • 36.
  • 37. Catalyst Integrated Security Configuration sw(config)# ip dhcp snooping sw(config)# ip dhcp snooping vlan 10,20 sw(config)# ip arp inspection vlan 10,20 sw(config)# interface fastethernet 0/1 sw(config-if)# description Access Port sw(config-if)# switchport mode access sw(config-if)# switchport access vlan 10 sw(config-if)# switchport port-security maximum 2sw(config-if)# switchport port-security maximum 2 sw(config-if)# switchport port-security violation restrict sw(config-if)# switchport port-security sw(config-if)# ip dhcp limit rate 50 sw(config-if)# ip verify source port-security sw(config)# interface fastethernet 0/24 sw(config-if)# description Uplink sw(config-if)# switchport mode trunk sw(config-if)# switchport trunk allowed vlan 10,20 sw(config-if)# ip dhcp snooping trust sw(config-if)# ip arp inspection trust
  • 38.
  • 39.
  • 40.
  • 41.
  • 43. • Question & Answer
  • 44. Tổng kết • Giảm thiểu nguy cơ tấn công sniffer trong mạng lan của doanh nghiệp chúng ta nên kết hợp 1 số phương thức : – Port Security– Port Security – Dynamic ARP Inspection – IP Source guard – Hạn chế truy cập, xác thực bằng AAA, mã hóa thông tin…