TU Delft on IPv6 ... loving their IPv4 addresses

The TU Delft (Delft University of Technology) webserver is on IPv6:

$ host www.tudelft.nl
www.tudelft.nl has address 131.180.77.102
www.tudelft.nl has IPv6 address 2001:610:908:112:131:180:77:102

Ah, apparently they love their IPv4 address scheme, as they have put their IPv4 address into their IPv6 address: 2001:610:908:112:131:180:77:102

(Thank you @Whreq)

Use curl to read your Sitecom WLR-4100 X4 N300 (and X6)

If you want to read out your Sitecom WLR-4100 X4 N300 (and X6) from the command line, here's how to do that with curl (alas Sitecom seems to have no SNMP nor telnet).

Assuming your Sitecom is on http://192.168.0.1/ , make sure you can log in on the Sitecom router with your favorite webbrowser: username is 'admin', password is on a sticker on the bottom of your Sitecom at "WPA2 password". In the examples below I use the password '8BT5J5Y6AAAA'

If that works, first test that a plain curl login works:

curl --user admin:8BT5J5Y6AAAA 'http://192.168.0.1/index.htm'

That should give some HTML garbage, but not "401 Unauthorized". If you get "401 Unauthorized" recheck your password.

If it works, you can proceed:

Get your public IPv4 address:

$ curl --silent --user admin:8BT5J5Y6AAAA 'http://192.168.0.1/stanet.htm' | grep -i sta_ip:

var st2={sta_ip:"83.128.180.11",sta_mac:"64:D1:A3:07:20:AA",sta_mask:"255.255.252.0",sta_dns1:"62.45.45.45,62.45.46.46",sta_gw:"83.128.180.1"};

So my public IPv4 address is 83.128.180.11

Get an overview of the traffic (alas in packets, not in bytes):

$ curl --silent --user admin:8BT5J5YAAAA 'http://192.168.0.1/stats.htm' | grep -i wRxNum:

var st={wlDev:"1",wlTxNum:"  15406",wlRxNum:"  30387",lTxNum:"   1031",lRxNum:"    562",wTxNum:"   4133",wRxNum:"   7482"};

You need to parse that output to get what you want. Here's the Sent Packets and Receive Packets (so: not bytes) on your Ethernet WAN interface you could feed into MRTG:

$ curl --silent --user admin:8BT5J5Y6AAAA 'http://192.168.0.1/stats.htm' | grep -i wRxNum: | awk -F "[^0-9]*"  '{ print $(NF-2) "\n" $(NF-1) "\n\n" }'

13689485
38296365

Looks good. Warning: these are packets ...not bytes. Multiply with the typical packet size in Send resp Received direction (so 50 resp 1200?) to get bytes. Example:

$ curl --silent --user admin:8BT5J5Y6AAAA 'http://192.168.0.1/stats.htm' | grep -i wRxNum: | awk -F "[^0-9]*"  '{ print 90*$(NF-2) "\n" 1200*$(NF-1) "\n\n" }'


1253322450
46662481200

Note: you have to change (NF-2) and (NF-1) to get the right Up and Down

As this is an IPv6 blog, here is some IPv6 stuff:

$ curl --silent --user admin:8BT5J5Y6AAA 'http://192.168.0.1/ipv6_stainfo.htm'   | grep -i fe80

var ipv6_wan_linklocal = 'fe80::66d1:a3ff:fe07:aaaa/64';

var ipv6_linklocal = 'fe80::66d1:a3ff:fe07:aaaa/64';

Happy curling!

(Met dank aan Rob voor de Sitecom)