Supernode

[wikipedia-article] i don't like that word,

quick'n dirty required software:

1) [fastd] mesh-node-vpn

2) [vpn-key-upload] todo: remove overhead (apache,ruby,sinatra ...), kiss principle]

3) [batman-adv]

4) [tinc] mesh-backbone-vpn

5) OS: debian wheezy

load batman-adv kernel while booting in /etc/modules.conf add

batman-adv

disable pmtu-discovery in /etc/sysctl.conf add

net.ipv4.ip_no_pmtu_disc=1

fastd in /etc/apt/apt/sources.list add

deb http://repo.universe-factory.net/debian/ sid main

keyimport

 gpg --keyserver pgpkeys.mit.edu --recv-key  AB7A88C5B89033D8
 gpg -a --export AB7A88C5B89033D8 | sudo apt-key add -

install fastd

 apt-get update
 apt-get install fastd

fast configuration

/etc/fastd/kbu# ls
backbone  fastd.conf peers 


root@fastd4:/etc/fastd/kbu# ls backbone/
fastd1  fastd2  fastd3  fastd4
root@fastd4:/etc/fastd/kbu# cat backbone/*
key "4f856d95bd596ac7724edca73a19e6e9d142b374df27166bb1a78e58785efc59";
remote ipv4 "fastd1.kbu.freifunk.net" port 10000;
key "e1916b66c4f8a795e217877cf72607d952e796463c7024dd9a6a47ae2929bc10";
remote ipv4 "fastd2.kbu.freifunk.net" port 10000;
key "d56181dfe9b5ac7cfe68a94c0ce406322a9924286a751673da0dcb28ad5218b0";
remote ipv4 "fastd3.kbu.freifunk.net" port 10000;
key "9b3f65f99963343e2785c8c4fad65e70b73ee7e1205d63bd84f3e2decb53e621";
remote ipv4 "fastd1.kbu.freifunk.net" port 10000;

[fastd-backbone] for more

fastd.conf

# Log everything to a log file
log to "/var/log/fastd.log" level debug; 
# Set the interface name
interface "fastd";

# Support xsalsa20 and aes128 encryption methods, prefer xsalsa20
method "xsalsa20-poly1305";
method "aes128-gcm";
method "null";  #todo: WTF, encryption is off!?, what do we change keys for?

# Bind to a fixed port, IPv4 only
bind 0.0.0.0:10000;

# Secret key generated by `fastd --generate-key`
# in this case you have to ask the  holy guru of that project for the private key'
secret "won't tell my secret here";

# Set the interface MTU for TAP mode with xsalsa20/aes128 over IPv4 with a base MTU of 1492 (PPPoE)
# (see MTU selection documentation)
mtu 1426;
# Include peers from the directory 'peers'
include peers from "/etc/fastd/kbu/backbone";
include peers from "/etc/fastd/kbu/peers";

#ipadress, routing
#establish  "/root/scripts/fastdup.sh"; #does'not work for me, need to do so in an external script