Reverse DNS requests from standby gateway every 6 hours

[KostasGR]

Hello community.

We have observed that a standby member sends Reverse DNS requests towards DNS server every 6 hours for different IPs.

Any idea why this is happening?

BR,

Kostas

[PhoneBoy]

The only reason I can think of for reverse DNS lookups is non-FQDN objects in the policy.
Any of those present?

[KostasGR]

Hello PhoneBoy

Yes they are present if you mean host1 with IP 192.168.1.2 and not DNS entries either forward or reverse.

We are not using domain objects.

BR,

Kostas

[PhoneBoy]

It's a specific type of object (not a standard host/network object):

If you don't have any of those, not sure offhand and it might be worth a TAC case to ask.