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CLI: Example for Configuring Hot Standby in Active/Standby Mode Where Firewalls Are Deployed in In-path Mode and Connect to Routers in Upstream and Downstream Directions

This section provides a CLI example of configuring hot standby in active/standby mode in which the service interfaces of the firewalls work at Layer 3 and connect to routers in upstream and downstream directions.

Networking Requirements

As shown in Figure 1, the service interfaces of the FWs work at Layer 3 and are directly connected to routers. OSPF runs between the FWs and upstream and downstream routers. The FWs are expected to work in active/standby mode. Normally, traffic is forwarded by FW_A. If FW_A is faulty, FW_B takes over to ensure service continuity.

Figure 1 Networking diagram for configuring active/standby when service interfaces work at Layer 3 and connect to routers

Procedure

  1. Complete basic network configurations.

    FW_A

    FW_B

    # Set IP addresses for the interfaces on FWs.

    		 
    <FW_A> system-view 
[FW_A] interface GigabitEthernet 0/0/1
[FW_A-GigabitEthernet0/0/1] ip address 10.2.0.1 24
[FW_A-GigabitEthernet0/0/1] quit 
[FW_A] interface GigabitEthernet 0/0/3
[FW_A-GigabitEthernet0/0/3] ip address 10.3.0.1 24
[FW_A-GigabitEthernet0/0/3] quit 
[FW_A] interface GigabitEthernet 0/0/7
[FW_A-GigabitEthernet0/0/7] ip address 10.10.0.1 24
[FW_A-GigabitEthernet0/0/7] quit 
    <FW_B> system-view 
[FW_B] interface GigabitEthernet 0/0/1
[FW_B-GigabitEthernet0/0/1] ip address 10.2.1.1 24
[FW_B-GigabitEthernet0/0/1] quit 
[FW_B] interface GigabitEthernet 0/0/3
[FW_B-GigabitEthernet0/0/3] ip address 10.3.1.1 24
[FW_B-GigabitEthernet0/0/3] quit 
[FW_B] interface GigabitEthernet 0/0/7
[FW_B-GigabitEthernet0/0/7] ip address 10.10.0.2 24
[FW_B-GigabitEthernet0/0/7] quit

    # Assign the interfaces to security zones on FWs.

    		 
    [FW_A] firewall zone trust
[FW_A-zone-trust] add interface GigabitEthernet 0/0/3
[FW_A-zone-trust] quit 
[FW_A] firewall zone dmz
[FW_A-zone-dmz] add interface GigabitEthernet 0/0/7
[FW_A-zone-dmz] quit 
[FW_A] firewall zone untrust
[FW_A-zone-untrust] add interface GigabitEthernet 0/0/1
[FW_A-zone-untrust] quit
    		 
    [FW_B] firewall zone trust
[FW_B-zone-trust] add interface GigabitEthernet 0/0/3
[FW_B-zone-trust] quit 
[FW_B] firewall zone dmz
[FW_B-zone-dmz] add interface GigabitEthernet 0/0/7
[FW_B-zone-dmz] quit 
[FW_B] firewall zone untrust
[FW_B-zone-untrust] add interface GigabitEthernet 0/0/1
[FW_B-zone-untrust] quit

    # Configure OSPF to ensure IP connectivity on FWs.

    		 
    [FW_A] ospf 10
[FW_A-ospf-10] area 0
[FW_A-ospf-10-area-0.0.0.0] network 10.2.0.0 0.0.0.255
[FW_A-ospf-10-area-0.0.0.0] network 10.3.0.0 0.0.0.255
[FW_A-ospf-10-area-0.0.0.0] quit
[FW_A-ospf-10] quit
    		 
    [FW_B] ospf 10
[FW_B-ospf-10] area 0
[FW_B-ospf-10-area-0.0.0.0] network 10.2.1.0 0.0.0.255
[FW_B-ospf-10-area-0.0.0.0] network 10.3.1.0 0.0.0.255
[FW_B-ospf-10-area-0.0.0.0] quit
[FW_B-ospf-10] quit

  2. Configure hot standby.

    FW_A

    FW_B

    # Configure VGMP groups to monitor upstream and downstream service interfaces on FWs.

    		 
    [FW_A] hrp track interface GigabitEthernet 0/0/1
[FW_A] hrp track interface GigabitEthernet 0/0/3
    		 
    [FW_B] hrp track interface GigabitEthernet 0/0/1
[FW_B] hrp track interface GigabitEthernet 0/0/3

    # Configure the function of adjusting the OSPF cost based on VGMP status on FWs. After you enable this function, FW determines whether it is the active or standby FW when advertising OSPF routes. If FW is the active device, it directly advertises the routes that it has learned. If it is the standby device, it advertises the routes after increasing the cost values. In this way, when upstream and downstream routers calculate routes, the next hop is pointed to the active device, and packets are forwarded to the active device.

    		 
    [FW_A] hrp adjust ospf-cost enable
    		 
    [FW_B] hrp adjust ospf-cost enable

    # Specify the heartbeat interface and enable hot standby on FWs.

    		 
    [FW_A] hrp interface GigabitEthernet 0/0/7 remote 10.10.0.2
[FW_A] hrp enable 
    [FW_B] hrp interface GigabitEthernet 0/0/7 remote 10.10.0.1
[FW_B] hrp standby-device
[FW_B] hrp enable

  3. Create a security policy on FW_A. After hot standby relationship is established, the security policy on FW_A will be automatically backed up to FW_B.

    # Configure security policies to allow FWs and the upstream/downstream routers to exchange OSPF packets.

    Controlling function of security policies for OSPF packets are configured by the firewall packet-filter basic-protocol enable command. By default, the function of the firewall packet-filter basic-protocol enable command is enabled. That is, OSPF packets are controlled by security policies. In this case, a security policy must be configured between the security zones where the upstream/downstream service interfaces reside and the local zone to allow OSPF packets to pass. In this example, enabling the firewall packet-filter basic-protocol enable command is used as an example.

    HRP_M[FW_A] security-policy
HRP_M[FW_A-policy-security] rule name policy_ospf_1 
HRP_M[FW_A-policy-security-rule-policy_ospf_1] source-zone local
HRP_M[FW_A-policy-security-rule-policy_ospf_1] destination-zone trust untrust
HRP_M[FW_A-policy-security-rule-policy_ospf_1] service ospf
HRP_M[FW_A-policy-security-rule-policy_ospf_1] action permit
HRP_M[FW_A-policy-security-rule-policy_ospf_1] quit
HRP_M[FW_A-policy-security] rule name policy_ospf_2 
HRP_M[FW_A-policy-security-rule-policy_ospf_2] source-zone trust untrust
HRP_M[FW_A-policy-security-rule-policy_ospf_2] destination-zone local
HRP_M[FW_A-policy-security-rule-policy_ospf_2] service ospf
HRP_M[FW_A-policy-security-rule-policy_ospf_2] action permit
HRP_M[FW_A-policy-security-rule-policy_ospf_2] quit

    # Configure a security policy to allow intranet users to access the Internet.

    HRP_M[FW_A-policy-security] rule name policy_sec 
HRP_M[FW_A-policy-security-rule-policy_sec] source-zone trust
HRP_M[FW_A-policy-security-rule-policy_sec] destination-zone untrust
HRP_M[FW_A-policy-security-rule-policy_sec] source-address 10.3.2.0 24
HRP_M[FW_A-policy-security-rule-policy_sec] source-address 10.3.3.0 24
HRP_M[FW_A-policy-security-rule-policy_sec] action permit

  4. Configure the routers.

    Configure OSPF on the routers to advertise routes. For configuration commands, refer to the related documents of the routers.

Verification

Run the display hrp state verbose command on FW_A and FW_B to check the VGMP group status. If the following information is displayed, hot standby relationship is successfully established.

FW_A

FW_B

 
HRP_M<FW_A> display hrp state verbose
 Role: active, peer: standby    
 Running priority: 45000, peer: 45000
 Backup channel usage: 30%       
 Stable time: 1 days, 13 hours, 35 minutes
 Last state change information: 2018-03-22 16:01:56 HRP core state changed, old_
state = normal(standby), new_state = normal(active), local_priority = 45000,
 peer_priority = 45000.       
             
 Configuration:                 
 hello interval:              1000ms
 preempt:                     60s   
 mirror configuration:        off   
 mirror session:              off   
 track trunk member:          on
 auto-sync configuration:     on
 auto-sync connection-status: on
 adjust ospf-cost:            on
 adjust ospfv3-cost:          on
 adjust bgp-cost:             on
 nat resource:                off   
                                
 Detail information:            
                       GigabitEthernet0/0/1: up
                       GigabitEthernet0/0/3: up
                                  ospf-cost: +0
 
HRP_S<FW_B> display hrp state verbose
 Role: standby, peer: active    
 Running priority: 45000, peer: 45000
 Backup channel usage: 30%       
 Stable time: 1 days, 13 hours, 35 minutes
 Last state change information: 2018-03-22 16:01:56 HRP core state changed, old_
state = normal(standby), new_state = normal(standby), local_priority = 45000,
 peer_priority = 45000.       
             
 Configuration:                 
 hello interval:              1000ms
 preempt:                     60s   
 mirror configuration:        off   
 mirror session:              off   
 track trunk member:          on
 auto-sync configuration:     on
 auto-sync connection-status: on
 adjust ospf-cost:            on
 adjust ospfv3-cost:          on
 adjust bgp-cost:             on
 nat resource:                off   
                                
 Detail information:            
                       GigabitEthernet0/0/1: up
                       GigabitEthernet0/0/3: up
                                  ospf-cost: +65500

Configuration Scripts

FW_A

FW_B

 
#
 hrp enable

 hrp interface GigabitEthernet 0/0/7 remote 10.10.0.2
 hrp track interface GigabitEthernet 0/0/1
 hrp track interface GigabitEthernet 0/0/3
#
interface GigabitEthernet 0/0/1
 ip address 10.2.0.1 255.255.255.0
#
interface GigabitEthernet 0/0/3
 ip address 10.3.0.1 255.255.255.0
#
interface GigabitEthernet 0/0/7
 ip address 10.10.0.1 255.255.255.0
#
firewall zone trust
 set priority 85
 add interface GigabitEthernet0/0/3 
#
firewall zone untrust
 set priority 5
 add interface GigabitEthernet 0/0/1
#
firewall zone dmz
 set priority 50
 add interface GigabitEthernet 0/0/7
#
ospf 10  
 area 0.0.0.0
  network 10.2.0.0 0.0.0.255
  network 10.3.0.0 0.0.0.255
#
security-policy
 rule name policy_ospf_1
  source-zone local
  destination-zone trust
  destination-zone untrust
  service ospf
  action permit
 rule name policy_ospf_2
  source-zone trust
  source-zone untrust
  destination-zone local
  service ospf
  action permit
 rule name policy_sec
  source-zone trust
  destination-zone untrust
  source-address 10.3.2.0 24
  source-address 10.3.3.0 24
  action permit
 
#
 hrp enable
 hrp standby-device 
 hrp interface GigabitEthernet 0/0/7 remote 10.10.0.1
 hrp track interface GigabitEthernet 0/0/1
 hrp track interface GigabitEthernet 0/0/3
#
interface GigabitEthernet 0/0/1
 ip address 10.2.1.1 255.255.255.0
#
interface GigabitEthernet 0/0/3
 ip address 10.3.1.1 255.255.255.0
#
interface GigabitEthernet 0/0/7
 ip address 10.10.0.2 255.255.255.0
#
firewall zone trust
 set priority 85
 add interface GigabitEthernet0/0/3
#
firewall zone untrust
 set priority 5
 add interface GigabitEthernet 0/0/1
#
firewall zone dmz
 set priority 50
 add interface GigabitEthernet 0/0/7
#
ospf 10  
 area 0.0.0.0
  network 10.2.1.0 0.0.0.255
  network 10.3.1.0 0.0.0.255
#
security-policy
 rule name policy_ospf_1
  source-zone local
  destination-zone trust
  destination-zone untrust
  service ospf
  action permit
 rule name policy_ospf_2
  source-zone trust
  source-zone untrust
  destination-zone local
  service ospf
  action permit
 rule name policy_sec
  source-zone trust
  destination-zone untrust
  source-address 10.3.2.0 24
  source-address 10.3.3.0 24
  action permit
Parent Topic: Hot Standby
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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