setup_batman_ap

1. setup interfaces:

sudo nano /etc/network/interfaces.d/bat0

auto bat0
iface bat0 inet auto
        address 172.27.0.1
        netmask 255.255.255.0
        pre-up /usr/sbin/batctl if add wlan1


sudo nano /etc/network/interfaces.d/wlan1

auto wlan1
iface wlan1 inet manual
        mtu 1532 # increase packet size to account for batman-adv header
        wireless-channel 1 # any channel from 1-14
        wireless-essid nightlight-mesh
        wireless-mode ad-hoc
        wireless-ap 02:12:34:56:78:9A # pre-set CELL id

2. install and enable batman-adv

sudo apt-get install -y batctl
echo 'batman-adv' | sudo tee --append /etc/modules
echo "${HOME}/start-batman-adv.sh" >> ~/.bashrc

2. setup batman boot script

sudo nano ~/start-batman-adv.sh

#!/bin/bash

# tell batman-adv which interface to use
sudo batctl if add wlan1

# activates the interfaces for batman-adv
sudo ifconfig wlan1 up
sudo ifconfig bat0 up # bat 0 is created via first cmd


3.

append to /etc/dhcpcd.conf:

interface wlan1
static ip_address=127.72.0.1/24
nohook wpa_supplicant

# added for ap
interface wlan0
static ip_address=192.168.0.1/24
nohook wpa_supplicant