在openwrt路由中加入n2n，并在ubuntu里加入n2n服務，實現開機聯網互通互訪

1、openwrt的硬件環境：

將自己的WR703N刷入openwrt(這里需要修改FLASH芯片，換個8M的FLASH)；

刷機后，安裝openwrt，此教程網上一大堆，無需說明了，TELNET進入，并開啟SSH后，root登陸。

2、安裝n2n到openwrt中：

[email?protected]:~# opkg update

[email?protected]:~# cat /etc/opkg.conf

[email?protected]:~# opkg install n2n

運行上述命令即可安裝n2n。

3、修改n2n的配置文件：

[email?protected]:~# cat /etc/config/n2n

config edge

option ipaddr '10.10.100.191'

option supernode '106.186.30.16'

option port '9876'

option community 'leekwen'

option key 'leekwen'

option route '1'

4、修改n2n服務的啟動腳本：

[email?protected]:~# vi /etc/init.d/n2n

#!/bin/sh /etc/rc.common

# Copyright (C) 2008-2012 OpenWrt.org

START=90

start_instance() {

local cfg="$1"

config_get type "$cfg" TYPE

case "$type" in

edge)

config_get ipaddr "$cfg" 'ipaddr'

[ -n "$ipaddr" ] || return 1

config_get supernode "$cfg" 'supernode'

config_get port "$cfg" 'port'

config_get community "$cfg" 'community'

config_get key "$cfg" 'key'

config_get_bool route "$cfg" 'route' '0'

[ "$route" = "1" ] && args='-r'

service_start /usr/sbin/edge -f $args -a $ipaddr -c $community -k $key -l ${supernode}:${port} -M 1300

;;

supernode)

config_get port "$cfg" port

[ -n "$port" ] || return 1

service_start /usr/sbin/supernode -l $port

;;

esac

}

stop_instance() {

local cfg="$1"

config_get type "$cfg" TYPE

case "$type" in

edge)

service_stop /usr/sbin/edge

;;

supernode)

service_stop /usr/sbin/supernode

;;

esac

}

start() {

config_load 'n2n'

config_foreach start_instance 'edge'

config_foreach start_instance 'supernode'

}

stop() {

config_load 'n2n'

config_foreach stop_instance 'edge'

config_foreach stop_instance 'supernode'

}

5、將n2n加入openwrt系統啟動項：

[email?protected]:~# /etc/init.d/n2n enable

6、啟動openwrt中的n2n服務：

[email?protected]:~# /etc/init.d/n2n start

[email?protected]:~# ifconfig edge0

edge0 Link encap:Ethernet HWaddr 86:CC:1B:E9:1A:DC

inet addr:10.10.100.191 Bcast:10.10.100.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1300 Metric:1

RX packets:1117 errors:0 dropped:22 overruns:0 frame:0

TX packets:698 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:500

RX bytes:104415 (101.9 KiB) TX bytes:98732 (96.4 KiB)

7、互通測試：與我的手機端 n2n互ping下

[email?protected]:~# ping 10.10.100.103

PING 10.10.100.103 (10.10.100.103): 56 data bytes

64 bytes from 10.10.100.103: seq=0 ttl=64 time=31.738 ms

64 bytes from 10.10.100.103: seq=1 ttl=64 time=25.347 ms

64 bytes from 10.10.100.103: seq=2 ttl=64 time=22.565 ms

64 bytes from 10.10.100.103: seq=3 ttl=64 time=40.063 ms

64 bytes from 10.10.100.103: seq=4 ttl=64 time=23.577 ms

^C

--- 10.10.100.103 ping statistics ---

6 packets transmitted, 5 packets received, 16% packet loss

round-trip min/avg/max = 22.565/19.838/31.738 ms

在ubuntu系統中增加n2n服務：

[email?protected]:~$ svn co https://svn.ntop.org/svn/ntop/trunk/n2n

[email?protected]:~$ cd n2n/

[email?protected]:~/n2n$ ls

n2n_v1 n2n_v2

[email?protected]:~/n2n$ cd n2n_v1/

[email?protected]:~/n2n/n2n_v1$ ls

COPYING edge.8 HACKING lzoconf.h Makefile minilzo.h n2n.h openwrt scripts supernode.c tuntap_linux.c twofish.c win32

debian edge.c INSTALL lzodefs.h minilzo.c n2n.c n2n.spec README supernode.1 tuntap_freebsd.c tuntap_osx.c twofish.h

[email?protected]:~/n2n/n2n_v1$ make

[email?protected]:~/n2n/n2n_v1$ ./edge -h

Welcome to n2n v.1.3.2 for i686

Built on 04/23/15 06:11:56 PM

Copyright 2007-08 - http://www.ntop.org

edge -d -a -c -k -s [-u -g ][-f][-m ]

-l [-p ] [-M ] [-t] [-r] [-v] [-b] [-h]

-d | tun device name

-a | n2n IP address

-c | n2n community name

-k | Encryption key (ASCII) - also N2N_KEY=

-s | Edge interface netmask in dotted decimal notation (255.255.255.0)

-l | Supernode IP:port

-b | Periodically resolve supernode IP

| (when supernodes are running on dynamic IPs)

-p | Local port used for connecting to supernode

-u | User ID (numeric) to use when privileges are dropped

-g | Group ID (numeric) to use when privileges are dropped

-f | Fork and run as a daemon. Use syslog.

-m | Choose a MAC address for the TAP interface

| eg. -m 01:02:03:04:05:06

-M | Specify n2n MTU (default 1400)

-t | Use http tunneling (experimental)

-r | Enable packet forwarding through n2n community

-v | Verbose

Environment variables:

N2N_KEY | Encryption key (ASCII)

[email?protected]:~/n2n/n2n_v1$ pwd

/home/Leekwen/n2n/n2n_v1

2、下載并編譯完畢后，編寫啟動服務文件n2n：

[email?protected]:~/n2n/n2n_v1$ vi n2n

#!/bin/bash

##Some Variable define here ##

PROG="edge"

n2n_IP="10.10.100.103"

n2n_cname="leekwen"

n2n_pass="leekwen"

SNODE_Host="106.186.30.16"

SNODE_Port="9876"

LOGS="/var/log/$PROG.log"

PROG_PATH="/home/leekwen/n2n/n2n_v1" # edge binary put on here for testing this script, Not Needed if the system binary.

PROG_ARGS="-f -d edge0 -a $n2n_IP -c $n2n_cname -k $n2n_pass -l $SNODE_Host:$SNODE_Port -M 1300"

PID_PATH="/var/run"

RETVAL=0

start() {

pid=`ps ax | grep $PROG | grep -v "grep" | awk '{print $1}'`

if [ ! -z "$pid" ]; then

## Program is running, exit with error.

echo "Error! $PROG is currently running!" 1>&2

exit 1

else

## Change from /dev/null to something like /var/log/$PROG if you want to save output.

$PROG_PATH/$PROG $PROG_ARGS 2>&1 > $LOGS &

echo "$PROG started"

echo $pid > "$PID_PATH/$PROG.pid"

fi

RETVAL=$?

if [ $RETVAL -eq 0 ]; then

echo -e "\\033[60G\c"

echo -e "[ \\033[1;32m\c"

echo -e "OK\c"

echo -e "\\033[0;39m\c"

echo " ]"

else

echo -e "\\033[60G\c"

echo -e "[ \\033[1;31m\c"

echo -e "FAILED\c"

echo -e "\\033[0;39m\c"

echo " ]"

fi

return $RETVAL

}

stop() {

pid=`ps ax | grep $PROG | grep -v "grep"| awk '{print $1}'`

if [ ! -z "$pid" ]; then

## Program is running, so stop it

kill $pid

rm -f "$PID_PATH/$PROG.pid"

echo "$PROG stopped"

else

## Program is not running, exit with error.

echo "Error! $PROG not started!" 1>&2

exit 1

fi

RETVAL=$?

if [ $RETVAL -eq 0 ]; then

echo -e "\\033[60G\c"

echo -e "[ \\033[1;32m\c"

echo -e "OK\c"

echo -e "\\033[0;39m\c"

echo " ]"

else

echo -e "\\033[60G\c"

echo -e "[ \\033[1;31m\c"

echo -e "FAILED\c"

echo -e "\\033[0;39m\c"

echo " ]"

fi

return $RETVAL

}

## Check to see if we are running as root first.

## Found at http://www.cyberciti.biz/tips/shell-root-user-check-script.html

if [ "$(id -u)" != "0" ]; then

echo "This script must be run as root, you can use sudo command to run it." 1>&2

exit 1

fi

case "$1" in

start)

start

exit 0

;;

stop)

stop

exit 0

;;

reload|restart|force-reload)

stop

start

exit 0

;;

**)

echo "Usage: $0 {start|stop|reload}" 1>&2

exit 1

;;

esac

3、增加可執行權限，移動n2n服務到/etc/init.d/，并更新rc.d

[email?protected]:~/n2n/n2n_v1$ chmod 755 n2n

[email?protected]:~/n2n/n2n_v1$ sudo mv n2n /etc/init.d/

[email?protected]:~/n2n/n2n_v1$ sudo update-rc.d n2n defaults

4、對n2n服務進行測試：

[email?protected]:~/n2n/n2n_v1$ /etc/init.d/n2n start

[email?protected]:~/n2n/n2n_v1$ ifconfig edge0

[email?protected]:~/n2n/n2n_v1$ /etc/init.d/n2n stop

[email?protected]:~/n2n/n2n_v1$ ifconfig edge0

[email?protected]:~/n2n/n2n_v1$ /etc/init.d/n2n restart

[email?protected]:~/n2n/n2n_v1$ ifconfig edge0

5、對n2n服務進行Ping連通性測試：

[email?protected]:~/n2n/n2n_v1$ ping 10.10.100.103

PING 10.10.100.103 (10.10.100.103): 56 data bytes

64 bytes from 10.10.100.103: seq=0 ttl=64 time=11.738 ms

64 bytes from 10.10.100.103: seq=1 ttl=64 time=15.347 ms

64 bytes from 10.10.100.103: seq=2 ttl=64 time=12.565 ms

64 bytes from 10.10.100.103: seq=3 ttl=64 time=10.063 ms

64 bytes from 10.10.100.103: seq=4 ttl=64 time=13.577 ms

^C

--- 10.10.100.103 ping statistics ---

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max = 10.063/12.838/15.347 ms

到此客戶端的已經安裝成功，在網絡連接的情況下，每次重啟ubuntu及openwrt路由后，他們都會自動連接上supernode節點，以構建一個p2p的網絡。

原文：http://blog.csdn.net/leekwen/article/details/45244551

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