VRRP in Multi-Zone Firewall Networking
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Questions and Answers

What is the purpose of the heartbeat link in VGMP?

  • To back up configurations and status information
  • To set up the backup channel for communication (correct)
  • To synchronize configurations between active and standby firewalls
  • To ensure smooth service switchover between two devices

    • What type of backup is enabled by default?

  • Automatic backup (correct)
  • Automatic status synchronization
  • Manual configuration synchronization
  • Manual batch backup

    • What is included in the 'Objects' category during backup?

  • Logical interface, security zone, DNS, static route
  • IPsec, SSL VPN, URL category, keyword group
  • Security policy, NAT policy, authentication policy
  • Address, region, service, application, user, authentication server (correct)

    • What happens when the manual batch backup command is executed?

    <p>The active device immediately synchronizes its configuration with the standby device</p> Signup and view all the answers

    What is included in the 'Networks' category during backup?

    <p>Logical interface, security zone, DNS, static route, IPsec, SSL VPN</p> Signup and view all the answers

    What happens after a device restarts in VGMP?

    <p>The device that is successfully restarted automatically synchronizes the configuration from the firewall that is carrying services</p> Signup and view all the answers

    What is the purpose of configuration backup in VGMP?

    <p>To ensure smooth service switchover between two devices</p> Signup and view all the answers

    What type of routes can be backed up after configuring the hrp auto-sync config static-route command?

    <p>Static routes</p> Signup and view all the answers

    What happens to the MAC address table after the switch receives a packet?

    <p>It is updated</p> Signup and view all the answers

    What is the role of Router B in the network?

    <p>It responds to users' ARP requests and forwards traffic</p> Signup and view all the answers

    What is required when hot standby is needed for firewalls in multiple zones?

    <p>Configuring multiple VRRP groups on each firewall</p> Signup and view all the answers

    What is the virtual IP address of VRRP group 3?

    <p>202.38.10.1</p> Signup and view all the answers

    What is the main issue with traditional VRRP in firewall applications?

    <p>It cannot ensure state information consistency</p> Signup and view all the answers

    What is the IP address of the Trust zone?

    <p>10.100.10.0/24</p> Signup and view all the answers

    What is the role of Firewall A in the network?

    <p>It is the master firewall</p> Signup and view all the answers

    What is the main purpose of VRRP in firewall applications?

    <p>To provide hot standby for firewalls in multiple zones</p> Signup and view all the answers

    What happens when the VRRP status of Firewall A is the same as that of Firewall B?

    <p>The communication is normal and Firewall A passes the stateful inspection.</p> Signup and view all the answers

    What is the result when the VRRP status of Firewall A is different from that of Firewall B?

    <p>Firewall B fails the stateful inspection and packet loss occurs.</p> Signup and view all the answers

    What happens when PC1 in the Trust zone accesses PC2 in the Untrust zone?

    <p>The forward and return paths of the packets are the same.</p> Signup and view all the answers

    What is the role of Firewall A in VRRP group 3?

    <p>Master device</p> Signup and view all the answers

    What happens when the upstream link of Firewall A is faulty?

    <p>Firewall B becomes the new master device of VRRP group 3.</p> Signup and view all the answers

    What is the role of Firewall B in VRRP group 3?

    <p>Backup device</p> Signup and view all the answers

    What is the result of packet loss?

    <p>Firewall B fails the stateful inspection.</p> Signup and view all the answers

    What is the prerequisite for normal communication between PC1 and PC2?

    <p>The VRRP status of Firewall A is the same as that of Firewall B.</p> Signup and view all the answers

    What is the primary function of the Huawei Redundancy Protocol (HRP)?

    <p>To dynamically back up status data and key configuration commands between the active and standby firewalls</p> Signup and view all the answers

    What type of configuration commands can be backed up by HRP?

    <p>Only security and NAT policy configuration commands</p> Signup and view all the answers

    In active/standby networking, which device processes services and generates service entries?

    <p>Only the active device</p> Signup and view all the answers

    What is the purpose of the backup channel in HRP?

    <p>To back up configuration and status data</p> Signup and view all the answers

    What is the difference between active/standby and load balancing networking in HRP?

    <p>Active/standby networking processes services on only one device, while load balancing networking processes services on both devices</p> Signup and view all the answers

    What is the purpose of VRRP in Hot Standby?

    <p>To provide a protocol for active/standby and load balancing networking</p> Signup and view all the answers

    Which of the following is a feature of Firewall Hot Standby?

    <p>Dynamic backup of status data and key configuration commands</p> Signup and view all the answers

    What is the purpose of the VGMP group in Hot Standby?

    <p>To provide a protocol for active/standby and load balancing networking</p> Signup and view all the answers

    What type of scenario does the quick session backup function apply to?

    <p>Load balancing</p> Signup and view all the answers

    What is the primary function of a heartbeat link in hot standby networking?

    <p>To exchange status information and backup configuration commands</p> Signup and view all the answers

    What type of interfaces can be used as a heartbeat interface?

    <p>Either physical or logical interfaces</p> Signup and view all the answers

    What is included in the system configuration?

    <p>Administrator, virtual system, and log configuration</p> Signup and view all the answers

    What type of information is included in the status information category?

    <p>Session table, server-map table, blacklist, whitelist, address mapping table, MAC address table, user table, IPsec SA, and tunnel</p> Signup and view all the answers

    What is the primary purpose of a heartbeat interface in hot standby networking?

    <p>To exchange status information and backup configuration commands</p> Signup and view all the answers

    Study Notes

    VRRP in Multi-Zone Firewall Networking

    • When hot standby is required for firewalls in multiple zones, multiple VRRP groups need to be configured on each firewall.
    • Each VRRP group has a virtual IP address, e.g., VRRP group 1 has 10.100.10.1 and VRRP group 2 has 10.100.20.1.

    Defects of VRRP in Firewall Applications

    • Traditional VRRP cannot ensure state information consistency and VRRP status consistency between master and backup firewalls in multiple VRRP groups.
    • When the VRRP status of Firewall A is different from that of Firewall B, the forward and return paths of packets are inconsistent, causing packet loss.

    Hot Standby Fundamentals

    • Hot standby is achieved through VRRP, VGMP group, HRP, and Firewall Hot Standby.

    Basic HRP Concepts

    • Huawei Redundancy Protocol (HRP) dynamically backs up status data and key configuration commands between active and standby firewalls.
    • Only the active device processes services, generates service entries, and backs up the service entries to the standby device.
    • In load balancing networking, both devices process services, generate service entries, and back up the service entries to the peer device.

    Backup Channel

    • A backup channel interface needs to be specified to back up configuration and status data.
    • The directly connected ports on two firewalls set up the backup channel, also called the heartbeat link.

    Configuration and Status Backup

    • Automatic backup backs up configuration commands in real-time and periodically backs up status information.
    • Manual batch backup needs to be triggered manually by the administrator.
    • Backup content includes device configuration, policies, objects, networks, and system configuration.
    • The heartbeat link is used for exchanging messages between two firewalls to learn each other's status and back up configuration commands and various entries.
    • Heartbeat interfaces can be physical (GE interface) or logical (Eth-Trunk) interfaces formed by bundling multiple physical interfaces.

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    Related Documents

    Firewall Hot Standby Technologies PDF

    Description

    This quiz covers the configuration of VRRP groups on firewalls in multiple zones, including hot standby and ARP requests.

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