Get gateway address of gluon devices using an additional respondd service

getgwaddr.sh

gwid="`batctl gwl | grep '=>' | cut -d' ' -f2 | tr -d ':'`"

[ -z "$gwid" ] && exit 1

gluon-neighbour-info -p 1001 -d ff02::1 -i bat0 -r gateway | \
        while read resp; do
                node_id="`echo "$resp" | jsonfilter -e '$.node_id'`"
                if [[ "$node_id" == "$gwid" ]]; then
                        echo "$resp" | jsonfilter -e '$.address.ipv4'
                fi
        done