Ubuntu with Netflix, over IPv6

Some cool technology to share:

Ubuntu 14.04, with Netflix (using pipelight), which is using IPv6 (see terminal on the right).

Hurricane Electric can handle dynamic IPv4 addresses

My ISP loves to give me a new IPv4 address each few days. Until now I used Hurricane Electric's website to update my IPv6 tunnel endpoint accordingly to get my IPv6 working again. I just discovered you can update your tunnel in another way:

curl -s 'https://myname:verysecret@ipv4.tunnelbroker.net/nic/update?hostname=123456'

You have to run this from a machine on your LAN

I created a script like this

date >> /var/log/tunnelbroker.log
curl -s 'https://myname:verysecret@ipv4.tunnelbroker.net/nic/update?hostname=123456' >> /var/log/tunnelbroker.log

and put it into my crontab. Problem solved!

Thanks to the Tunnelbroker FAQ:

My IPv4 endpoint address is dynamic. Can I still create a tunnel? If yes, what do I need to do when my IP address changes?

Yes, you can still create a tunnel even if you are using a dynamic IPv4 endpoint address. If your IPv4 endpoint address changes, you can either login to the tunnelbroker.net page and update your IPv4 endpoint address or use https://ipv4.tunnelbroker.net/nic/update which is designed to be used to update your IPv4 endpoint address.

Top 1000 .nl sites: 66 IPv6 enabled

Of the top 1000 .nl (= Netherlands) sites (based on the Alexa list) 66 are IPv6 enabled. That's 6.6%

Collecting:
alexa-aaaa$ cat top-1m.csv | grep -e "\.nl$" | head -1000 | ./has-an-aaaa-or-not.py  > alexa-nl-top1000.txt

Counting:
alexa-aaaa$ cat alexa-nl-top1000.txt | awk '{ print $2 " " $3 " " $4 }' | sort | uniq -c
     66 has an IPv6
    934 has no IPv6

The IPv6 enabled sites are (in order of Alexa relevance):

$ cat alexa-nl-top1000.txt | grep "has an"

google.nl has an IPv6 address

blogspot.nl has an IPv6 address

dumpert.nl has an IPv6 address

geenstijl.nl has an IPv6 address

mijnwoordenboek.nl has an IPv6 address

encyclo.nl has an IPv6 address

xs4all.nl has an IPv6 address

digid.nl has an IPv6 address

rijksoverheid.nl has an IPv6 address

daskapital.nl has an IPv6 address

utwente.nl has an IPv6 address

transip.nl has an IPv6 address

zoover.nl has an IPv6 address

voetbalprimeur.nl has an IPv6 address

mijndomein.nl has an IPv6 address

flabber.nl has an IPv6 address

knmi.nl has an IPv6 address

tudelft.nl has an IPv6 address

sidn.nl has an IPv6 address

froot.nl has an IPv6 address

lindanieuws.nl has an IPv6 address

partyflock.nl has an IPv6 address

npo.nl has an IPv6 address

huurwoningen.nl has an IPv6 address

nsmbl.nl has an IPv6 address

spele.nl has an IPv6 address

nuon.nl has an IPv6 address

worldstream.nl has an IPv6 address

moneybird.nl has an IPv6 address

brekend.nl has an IPv6 address

goedbegin.nl has an IPv6 address

cbs.nl has an IPv6 address

zalando-lounge.nl has an IPv6 address

uvt.nl has an IPv6 address

webhostingtalk.nl has an IPv6 address

strato.nl has an IPv6 address

corendon.nl has an IPv6 address

fonq.nl has an IPv6 address

centralpoint.nl has an IPv6 address

babybytes.nl has an IPv6 address

moneymiljonair.nl has an IPv6 address

kamers.nl has an IPv6 address

dezaak.nl has an IPv6 address

antagonist.nl has an IPv6 address

sochicken.nl has an IPv6 address

torrentproxy.nl has an IPv6 address

want.nl has an IPv6 address

dutchleader.nl has an IPv6 address

ovh.nl has an IPv6 address

kennisnet.nl has an IPv6 address

fashionunited.nl has an IPv6 address

camilleri.nl has an IPv6 address

pcextreme.nl has an IPv6 address

greenhost.nl has an IPv6 address

openoffice.nl has an IPv6 address

prankster.nl has an IPv6 address

culy.nl has an IPv6 address

appwereld.nl has an IPv6 address

sexdateszoeken.nl has an IPv6 address

terena.nl has an IPv6 address

utopiatvshow.nl has an IPv6 address

manners.nl has an IPv6 address

oudjesophetweb.nl has an IPv6 address

neemontslag.nl has an IPv6 address

dailyinspiration.nl has an IPv6 address

volrecepten.nl has an IPv6 address

IPv4 versus IPv6 traffic on Windows

On Windows, you can see the IPv4 and Ipv6 traffic with the following commands:

netstat -ps ip
netstat -ps ipv6

Example output below (tested on a Windows 7 machine)

IPv6 and IPv4 statistics without netstat

Here's a method to show IPv6 and IPv4 statistics on Linux without the netstat command. I was looking for a method "without netstat", because the very old netstat version 1.42 on Ubuntu (both 12.04 and 14.04) and Debian has a silly overflow bug:

$ netstat -s -6 | grep -i octet
    Ip6InOctets: -1
    Ip6OutOctets: 80610872
    Ip6InMcastOctets: 172080
    Ip6OutMcastOctets: 3448


So "-1" IPv6 bytes ... :-(

IPv6 statistics

Here's the solution with /proc/net/snmp6 (and no netstat needed):

$ cat /proc/net/snmp6 | grep -i octet | head -2 | awk '{ print $NF }' 
8325976854
80610872

To make it a bit more readable:

$ cat /proc/net/snmp6 | grep -i octet | head -2 | awk '{ print int($NF/1048576) " MB" }' 

7940 MB

76 MB

So 7940 MB downstream IPv6 traffic.

IPv4 statistics

The IPv4 statistics are in a different file called ... /proc/net/netstat:

$ cat /proc/net/netstat | grep -i ipext | tail -1 | awk '{ print $8 "\n" $9 }'

3813163404

32346989

And in MB's:

$ cat /proc/net/netstat | grep -i ipext | tail -1 | awk '{ print $8 "\n" $9 }' | awk '{ print int($NF/1048576) " MB" }'

3636 MB

30 MB

To be complete: the overflow for IPv4 traffic:

$ netstat -s | grep -i octet

    InOctets: -481799528

    OutOctets: 32350221

    InMcastOctets: 396

So a negative number of IPv4 bytes ....

Script

You can put this into a five line script:

#!/bin/sh

echo "IPv4 (down resp up):"
cat /proc/net/netstat | grep -i ipext | tail -1 | awk '{ print $8 "\n" $9 }' | awk '{ print int($NF/1048576) " MB" }'

echo "\nIPv6 (down resp up):"
cat /proc/net/snmp6 | grep -i octet | head -2 | awk '{ print int($NF/1048576) " MB" }' 

The result is something like:

$ ./ipv4-vs-ipv6.sh
IPv4 (down resp up):
3636 MB
31 MB

IPv6 (down resp up):
7971 MB
77 MB

You can download the script here


To do: realtime info, just like nload does ....