Check and compare ping times for all Hurricane Electric (tunnelbroker.net) IPv6 tunnel servers.

he-tunnelserver-ping.sh

#!/bin/bash

tunservers="Hong_Kong,_HK:216.218.221.6 Singapore,_SG:216.218.221.42 Tokyo,_JP:74.82.46.6 Amsterdam,_NL:216.66.84.46 Berlin,_DE:216.66.86.114 Budapest,_HU:216.66.87.14 Frankfurt,_DE:216.66.80.30 London,_UK:216.66.80.26 London,_UK:216.66.88.98 Paris,_FR:216.66.84.42 Prague,_CZ:216.66.86.122 Stockholm,_SE:216.66.80.90 Warsaw,_PL:216.66.80.162 Zurich,_CH:216.66.80.98 Ashburn,_VA,_US:216.66.22.2 Chicago,_IL,_US:184.105.253.14 Dallas,_TX,_US:184.105.253.10 Denver,_CO,_US:184.105.250.46 Fremont,_CA,_US:72.52.104.74 Fremont,_CA,_US:64.62.134.130 Kansas_City,_MO,_US:216.66.77.230 Los_Angeles,_CA,_US:66.220.18.42 Miami,_FL,_US:209.51.161.58 New_York,_NY,_US:209.51.161.14 Phoenix,_AZ,_US:66.220.7.82 Seattle,_WA,_US:216.218.226.238 Toronto,_ON,_CA:216.66.38.58 Winnipeg,_MB,_CA:184.105.255.26"
tunserver_array=($tunservers)
tunserver_count=${#tunserver_array[@]}

i=1
(
    echo -e "Location\tIP\tmin\tavg\tmax\tmdev"
    (
        for server in $tunservers
        do
            echo -en "\rPinging $i/$tunserver_count..." 1>&2
            ((i++))
            location="${server%:*}"
            location="${location//_/ }"
            ip="${server##*:}"
            echo -e "$location\t$ip\t$(ping -nq -c6 -i0.3 -w3 $ip |& tail -n 1 | cut -d' ' -f4 | tr '/' '\t')"
        done
        echo -en "\r" 1>&2
    ) | sort -n -t '	' -k4
) | column -t -s'	'