R3721-F3210-F3171-HP High-End Firewalls High Availability Configuration Guide-6PW101

Verifying the configuration

After the configuration, Host A can ping Host B. You can view the VRRP group information on

GigabitEthernet 0/1 respectively on Firewall A and Firewall B. In VRRP group 1, Firewall A is the master

and Firewall B is the backup router. Firewall A is responsible for forwarding packets sent from Host A to

Host B.

If the interface that connects Firewall A to the Internet fails, Host A can still ping Host B. In this case, the

VRRP group information on the two devices shows that Firewall A becomes a backup router with the

priority being 80 and Firewall B becomes the master. Firewall B forwards the packets from Host A to Host

Single VRRP group configuration example at the CLI

Network requirements

• Host A needs to access Host B on the Internet, using 202.38.160.111/24 as its default gateway.

• Firewall A and Firewall B belong to VRRP group 1 with the virtual IP address of 202.38.160.111/24.

• If Firewall A operates properly, packets sent from Host A to Host B are forwarded by Firewall A. If

Firewall A fails, packets sent from Host A to Host B are forwarded by Firewall B.

Figure 17 Network diagram

Configuring Firewall A

<FirewallA> system-view

[FirewallA] interface gigabitethernet 0/1

[FirewallA-GigabitEthernet0/1] ip address 202.38.160.1 255.255.255.0

# Create VRRP group 1 and configure its virtual IP address as 202.38.160.111.

[FirewallA-GigabitEthernet0/1] vrrp vrid 1 virtual-ip 202.38.160.111

# Configure the priority of Firewall A in the VRRP group 1 as 110, which is higher than that of Firewall B

(100), so that Firewall A can become the master.

[FirewallA-GigabitEthernet0/1] vrrp vrid 1 priority 110

# Configure Firewall A to operate in preemptive mode so that it can become the master whenever it

operates properly. Configure the preemption delay as five seconds to avoid frequent status switchover.

[FirewallA-GigabitEthernet0/1] vrrp vrid 1 preempt-mode timer delay 5