Question over the command inter=wlan1

[ghost]

Hi I've successfully used the guide to create a wifi repeater on my Rpi4 bridging between two USB wifi dongles set up as wlan0 and 1, thank you so much for taking the time to make this available.

I have a question though about one step, where it says run "inter=wlan1". Whilst I did this, the command was accepted, what is this actually doing? I can't seem to find a command called "inter". Thanks so much T

[ArieLevs]

Hi @Tarantyev

the inter=wlan1 is actually not a command, but a variable assignment (shortcut for interface).

So for example instead of executing

inter=wlan1
sudo iptables -t nat -A POSTROUTING -o ${inter} -j MASQUERADE

you could also do

some_var_name=wlan56
sudo iptables -t nat -A POSTROUTING -o ${some_var_name} -j MASQUERADE

or just

sudo iptables -t nat -A POSTROUTING -o wlan1 -j MASQUERADE

I've used a variable so it will be easier for users to switch between different interfaces without the need of documenting the full command twice.

And thank you for this feedback!