Tessel 2 is seeking FCC approval. Tessel 2 runs OpenWRT, a distribution of Linux designed as open firmware for routers with very granular control over wireless capabilities. Currently Tessel 2 is stuck in FCC approval pending its demonstration of being able to generate packets in the 802.11n range.
Installation on a Tessel 2:
opkg update opkg install tcpdump wget https://kevinmehall.net/tmp/packetspammer -O /usr/bin/packetspammer