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What are the prerequisites while configuring an HA pair?Īns: To set up high availability on your Palo Alto Networks firewalls, you need a pair of firewalls that meet the following requirements: Recommendation: Do not enable Heartbeat BackupĦ0. Based on the combination of HA1 and HA1 Backup ports you are using, use the following recommendations to decide whether you should enable heartbeat backup:.If required, configure encryption on the HA1 link (for communication between the HA peers) on both firewalls.The device priority value, however, must not be identical. If required, enable preemption on both firewalls.Set the HA Mode to Active Passive on both firewalls.If you are using in-band ports as HA links, you must set the interfaces for the HA1 and HA2 links to type HA.
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When a new active firewall takes over, it sends Gratuitous ARP messages from each of its connected interfaces to inform the connected Layer 2 switches of the virtual MAC address’s new location. See Floating IP Address and Virtual MAC Address for information about virtual MAC addresses. The firewall uses the Group ID value to create a virtual MAC address for all the configured interfaces.
#Palo alto show mac address table how to
How to configure HA on Palo alto firewall?Īns: To set up an active (PeerA) passive (PeerB) pair in HA, you must configure some options identically on both firewalls and some independently (non-matching) on each firewall.