7i96 on Mint with Linuxcnc RT unable to connect to 7i96

Hey folks, I can really use some help!

Here's where I'm at:
- I've got it all hooked up
- ethernet from the back of the mint PC into the Mesa 7i96
- 5v dc to the 7i96, 12v to the tb6600's
- verified I'm running the real time kernel
- went through the pnconfig
- using the 192.169.2.121 ip on the 7i96
getting error on startup regarding iptables. Files attached

hm2_eth: ERROR: Failed to create iptables chain hm2-eth-rules-outputhm2_eth: WARNING: Unable to restrict other access to the hm2-eth device.
and
hm2_eth: ERROR: Could not retrieve hardware address (MAC) of 192.168.1.121: Resource temporarily unavailable

tried switching to the 10.10.10.10 IP but that had not effect (same error)
not sure if I'm having a networking issue or a bad board since this is the first time.
found some users asking about the output of "mesaflash" but I can't for the life of me locate mesaflash or instructions that allow me to download it.

any help is appreciated!

What OS/ LinuxCNC distribution are you running?

This seems to be the issue:

sh: 1: /sbin/iptables: not found

You might try installing iptables

You can get mesaflash here:

github.com/LinuxCNC/mesaflash

(instructions for building/installing are at the bottom of that page)

Iptables is on the machine it's just in /usr/sbin so I did a symlink to it from /sbin

Now it just says error could not retrieve hardware address (MAC) OF 192.168.1.121 Resource temporarily unavailable

I'll get it back on the home network and see if I can get mesaflash.

It's Linux mint which is based on Debian

Thanks

Looks to me like network is not quite right.

What does route -n say?

Dear lord I'm an idiot.

Figured out that the 5v power was reversed and the board wasn't responding. Switched the wires and everything works.

Thanks guys! Iptables still would have burned me but I'm closer to a working machine now! A little less hair but closer...