#!/bin/bash
INT=${1:-eth0}
MYIP="$(ip addr show dev $INT | grep -e "inet6.*scope link" | awk '{print $2}' | cut -d/ -f1)"
NEIGH="$(ping6 ff02::2%$INT -n -c3 2>/dev/null | grep fe80 2>/dev/null | awk '{print $4}' | sed 's/\(.*\)./\1/' | sort -u)"
RNEIGH="$(echo -e "$NEIGH" | grep -v $MYIP | grep -v "^$" | sort -u)"
if [ $(echo -e "$RNEIGH" | wc -l) -eq 1 -a $(echo -e "$RNEIGH" | wc -c) -gt 4 ]; then
    echo "Host found, connecting to it!"
    telnet $RNEIGH%$INT || ssh root@$RNEIGH%$INT
elif [ -z "$RNEIGH" ]; then
    echo -n "."
    exec $0 $@
else
    echo "Several Hosts found:"
    echo -e "$RNEIGH"
fi