Keysight’s Ixea Line of traffic generators with concurrent monitoring are industrial grade tools for certification testing. I’ve used them to simulate thousands of WiFi users to validate an 400 node access point deployment at a major airport. Not cheap but has all the knobs and dials you’re looking for. You can also rent them.

 -mel

On Feb 24, 2024, at 8:43 AM, Jesse DuPont <jesse.dupont@celeritycorp.net> wrote:

 I believe you can do most of what you want using a Mikrotik and its Traffic Generator. Packet templates can be crafted mimic any of the popular protocols (L2, L3, L4), at least at the header level, with less flexibility on the payload legitimacy.

On 2/23/24 10:33 AM, Brandon Martin wrote:
Before I go to the trouble of making one myself, does anybody happen to know of a pre-canned program to generate realistic and scalable amounts of broadcast/broad-multicast network background "chatter" seen on typical consumer and business networks?  This would be things like lots of ARP traffic to/from various sources/destinations within a subnet, SSDP, MDNS-SD, SMB browser traffic, DHCP requests, etc.?

Ideally, said tool would have knobs to control the amount of traffic and whether a given type of traffic is present.

This is mostly for torture testing "IoT" type devices by exposing them to lots of diverse, essentially nonsense traffic that they're likely to see in a real environment.

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Brandon Martin