standalone fuzzing tool to debug net/netfilter

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Hi

i suffer for a long time with unpredictable random crashes in production
which can be bridge/netfilter/network and since it takes up to weeks
sometimes for happen again unable to reprdocue it in a 1:1 testing
environment i would like to use some standalone tool "send shit" to the
nat/firewall/gateway device

goal: trigger such crashes outside production, catch debug infos with
kdump and/or serial console and write qualified bugreports

--------------------

the testing environment consists of 3 virtual machines within a nested
VMware ESXi:

* firewall vm reflect production with different ranges
* a mini VM connected to the LAN device with no physical
  backing listening on a complete /24 and a ton of
  socket-activated tcp/udp services
* a mini-vm connected to the wan interface of the gateway
  device to bypass the host networking and play "internet"

"mini" means really mini, so some c/c++ stuff compiled and statically
linked for the destination system leading to a simple command "do
whatever bad stuff to the network 172.17.0.0/24 until the kernel panics"
would be much appreciated

/dev/root            ext4            5.8G     66.2M      5.7G   1% /
/dev/sda1            ext4          189.9M      4.1M    185.8M   2% /boot



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