Network security HSRP protocol

HSRP agreement (Hot StandBy Router Protocol) Hot backup router protocol

• HSRP Group number ：1-255
• There is no difference in group number
• Virtual router IP It's called virtual IP Address
• HSRP The group members

         Virtual router （ The eldest brother ）

         Active router

         Backup router

         Other routers

• HSRP priority (1-255)： Default 100
• HSRP Group members send messages regularly hello Packets come to communicate every... By default 3 second
• preempt preempt： effect – When the other party cannot be detected , Or detect that the other party's priority is lower than your own , Immediately seize the name of active routes .
• Configuration tracking track, Track the status of external network ports , Local Internet down fall , Then the priority will be reduced

Refer to the post ：

Network Security Learning --HSRP_ Lost dad's blog -CSDN Blog

Reference video ：

【 Qian Feng 】 Network security 300 A complete set of video tutorials (web Security / Penetration test / Hacker attack and defense / Information security / Code audit ), Introduction to the basics of network security to mastery _ Bili, Bili _bilibili

【 Qian Feng 】 Network security 300 A complete set of video tutorials (web Security / Penetration test / Hacker attack and defense / Information security / Code audit ), Introduction to the basics of network security to mastery _ Bili, Bili _bilibili