L4 UDPM

Multi-source UDP flood (UDPM)

Many nodes fire UDP datagrams at one target port simultaneously — connectionless PPS scales quickly.

How it works

  1. UDP has no handshake; PPS scales quickly with node count.
  2. Ideal for game/Voice UDP service tests.
  3. Reveals per-source vs. aggregate UDP policer behavior.

Packet flow (illustrative)

Multiple nodes sending UDP datagrams to one port.

Illustrative flow — not a live capture.

Engarde UDPM
Layer L4 UDP
Metric PPS / Mbps

What to watch in Engarde

  • Packet loss curve as nodes are added.
  • Firewall UDP sessionless limit messages.

Running this simulation

Run UDPM after baseline single-node UDP test; compare reports side by side.

Mitigation perspective

UDP PPS caps per prefix and adaptive scrubbing triggers.