Question

[Simon]

Leslie Rhorer <lesrhorer at siliconventures.net> wrote:

> On 6/3/2022 11:42 PM, Gregory Sloop wrote:

>> I assume you're talking about dhcp renewals? Yeah, if you look at the protocol, only the discover is broadcast.
>> A client renewal asks the server it got the lease from for the "renewal," directly. Only after not getting a renewal, will it then try a discover/broadcast again.
>>  
>> Which might be impacting your not seeing broadcast traffic. If all your machines have leases, they'll continue to unicast extension requests to the server that initially granted the lease. (And get them, if things are working right.) Thus no broadcasts - at least until a lease expires (or gets old enough.)

Did you look into this aspect ?
You may need to force some clients to drop their lease so they will start again by broadcasting Discover packets.

Simon