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Abnormal behaviour of failover firewalls

l.buschi
Level 2
Level 2

Hello,

i have my failover pairs which behave this way:

ASA# sh failover
Failover On
Failover unit Primary
Failover LAN Interface: FAILOVER-LINK GigabitEthernet0/5 (up)
Unit Poll frequency 1 seconds, holdtime 15 seconds
Interface Poll frequency 5 seconds, holdtime 25 seconds
Interface Policy 1
Monitored Interfaces 2 of 114 maximum
MAC Address Move Notification Interval not set
Version: Ours 9.2(3)4, Mate 9.2(3)4
Last Failover at: 04:33:55 UTC Sep 3 2015
        This host: Primary - Active
                Active time: 99615 (sec)
                slot 0: ASA5515 hw/sw rev (1.0/9.2(3)4) status (Up Sys)
                  Interface outside (X.Y.Z.W): Normal (Monitored)
                  Interface inside (192.168.0.200): Normal (Waiting)
                  Interface management (0.0.0.0): No Link (Not-Monitored)
                slot 1: CXSC5515 hw/sw rev (N/A/) status (Unresponsive/Up)
        Other host: Secondary - Standby Ready
                Active time: 0 (sec)
                slot 0: ASA5515 hw/sw rev (1.0/9.2(3)4) status (Up Sys)
                  Interface outside (X.Y.Z.H): Normal (Monitored)
                  Interface inside (192.168.0.201): Normal (Monitored)
                  Interface management (0.0.0.0): Normal (Not-Monitored)
                slot 1: CXSC5515 hw/sw rev (N/A/) status (Unresponsive/Up)

Stateful Failover Logical Update Statistics
        Link : Unconfigured.

 

 

 

ASA# sh run failover
failover
failover lan unit primary
failover lan interface FAILOVER-LINK GigabitEthernet0/5
failover interface ip FAILOVER-LINK 1.1.1.1 255.255.255.0 standby 1.1.1.2
failover ipsec pre-shared-key *****

 

ASA#sh ver

Cisco Adaptive Security Appliance Software Version 9.2(3)4
Device Manager Version 7.4(3)

 

the 2 firewall are connected to different switch with a reserved VLAN for failover.

 

Why is my primary active unit is in normal (waiting) state and not in Normal (monitored) ?

 

What did I configure wrong?

 

Tks

Johnny

 

4 Replies 4

rodrigog
Level 1
Level 1

Hello 

By any means do you have ip verify reverse-path applied to the inside interface?

ip verify reverse-path interface interface_name

If so remove it 

no ip verify reverse-path interface interface_name

 

 

 

there is no ip very reverse-path configured.

 

Both inside interfaces are connected to access-port on the right vlan with portfast enabled.

 


 

Try checking if there is any 192.168.0.200 duplicate ip address that may be creating the issue 

If that is not the case proceed open a TAC case to take a closer look into it

Check the switch interface configuration for the Normal (waiting) interfaces and make sure they are in the correct VLANs.  If they are subinterfaces make sure the switch port is a trunk and the relevant VLAN is allowed on the trunk.

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