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OpenWRT ·ÓÉÅäÖü¼ÇÉ
 

»ðÁú¹ûÈí¼þ ·¢²¼ÓÚ£º2014-08-25

  3281  次浏览      28
 

×î½ü Google ÔÚ¹úÄÚÒѾ­ÍêÈ«ÎÞ·¨·ÃÎÊ£¬Ê¹µÃͨ¹ý VPN ·ÃÎÊÍøÂçµÄÐèÇó¸ü¼ÓÇ¿ÁÒ£¬±¾ÎĽéÉܵķ½·¨¿ÉÒÔʹһ¸öÆÕͨµÄ·Óɾ߱¸Îȶ¨Á¬½Ó VPN µÄÄÜÁ¦£¬²¢Äܹ»¸ù¾ÝÄ¿±ê·ÃÎÊÍøÕ¾Ñ¡Ôñ¹úÄÚÍâÏß·£¬´Ó¶øµÃµ½Ò»¸ö¼ÈûÓÐÏÞÖÆ£¬Ò²²»»áÓ°ÏìËÙ¶ÈµÄ Wifi »·¾³£¬Á¬½Óµ½Õâ¸öÍøÂçµÄÉ豸²»ÐèÒªÈκÎÅäÖü´¿É°²È«ÉÏÍø£¬ÍêÈ«¸Ð¾õ²»µ½Èκβ»±ã¡£

chnroutes ·Óɱí

Õâ¸ö·ÓÉ±í¼¯ÖÐÁËËùÓзÖÅäµ½Öйú´ó½µÄ IP ¶Î£¬¸ù¾Ý http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest ÿÌì×Ô¶¯¸üУ¬¿ÉʹµÃÔÚ·ÃÎʹúÄÚµØÖ·Ê±²»¾­¹ý VPN¡£

ÏëÏëÈç¹ûÄܹ»ÈüÒÀïµÄ·ÓÉÖ±½ÓÁ¬½Ó VPN£¬ÔÚ¼ÒÁ¬½Ó WiFi µÄËùÓÐÉ豸ֱ½Ó´ïµ½FanǽµÄЧ¹û£¬Ó¦¸ÃºÜ Cool£¬ËùÒÔ×î½üÔÚij±¦ÕûÁËÒ»¸ö Netgear WNDR3800 ¶þÊÖ·ÓÉ»ØÀ´£¬ÏȺó·Ö±ðÔÚ DD-WRT ºÍ OpenWRT ³É¹¦ÅäÖà VPN + chnroutes£¬×îºó»¹ÊÇÑ¡ÔñÁË OpenWRT¡£

DD-WRT vs OpenWRT

¹ØÓÚ DD-WRT ºÍ OpenWRT£¬ÎÒÑ¡Ôñ OpenWRT Ö÷ÒªÒòΪ DD-WRT ROM Öм¯³ÉµÄÈí¼þÌ«¶à£¬¾ø´ó¶àÊýÓò»µ½£¬ÒªÅäÖà jffs2 À´±£´æ½Å±¾Îļþ£¬Ò»°ãÅäÖÃÔò±£´æÔÚnvramÖУ¬¶øÇÒÎÞÏ߽ϲ»Îȶ¨£¬5GƵ¶Î³£ËÑË÷²»µ½(µ±È»¿ÉÄÜÊÇÎÒÕâ¸ö·ÓÉÆ÷ÐͺŵÄÖ§³ÖÎÊÌâ)¡£OpenWRT µÄÅäÖÃÎļþÓ﷨ͳһ£¬ÅäÖö¼´æ´¢ÔÚÎļþϵͳÖУ¬ÇÒ ROM ±¾Éí½ö¼¯³ÉÁ˱ر¸×é¼þ£¬·Ç³£Ð¡£¬¿ÉÒÔÖ»°²×°ÐèÒªµÄ¶«Î÷£¬WEB¹ÜÀí½çÃæÒ²ÊÇ¿ÉÑ¡°²×°£¬¼ò½àÇ¿´ó£¬¾­¹ýÈô¸ÉÌìµÄʹÓÃÒ»Ö±±È½ÏÎȶ¨¡£

ÅäÖÃ

ÒÑÅäÖúà OpenWRT ÉÏÍøµÄͯЬÃÇ¿ÉÒÔÖ±½ÓÌø¹ý 1.Ë¢ ROM ºÍ 2.³õʼÅäÖÃ

1.Ë¢ ROM

a.Ê×ÏÈÈ·¶¨ÄãµÄÉ豸¿ÉÒÔ±» OpenWRT ËùÖ§³Ö(µ½ÕâÀï²é¿´Ö§³ÖµÄÉ豸ÁÐ±í£ºhttp://wiki.openwrt.org/toh/start)£¬È»ºóµ½ÕâÀïÏÂÔØ±àÒëºÃµÄ ROM£ºhttp://downloads.openwrt.org/ ¡£×îÐ嵀 stable °æ±¾ÊÇ attitude_adjustment(12.09)£¬ÎÒÏÂÔØµÄÊÇ trunk °æ±¾¡£

b.ÔÚ OpenWRT ¹ÙÍøÕÒÏàÓ¦É豸µÄ Wiki Ò³Ãæ²é¿´Ë¢»ú·½·¨£¬Ò»°ã¶¼ÊÇÔÚ·ÓÉÆ÷¹Ù·½Web¹Ì¼þÉý¼¶Ò³ÃæÖ±½ÓË¢Èë(ÎÒµÄ WNDR3800 WikiÒ³ÃæÊÇ£ºhttp://wiki.openwrt.org/toh/netgear/wndr3800)

2.³õʼÅäÖÃ

a.·ÓÉÆ÷Æô¶¯ºó£¬ÓеÄÐͺÅûÓа²×° Wifi Ä£¿é£¬ÐèÒªÏÈÓÃÍøÏßÁ¬½Óµ½ LAN ¿Ú£¬±¾»ú IP ÅäÖÃΪ¾²Ì¬ 192.168.1.x£¬È»ºó telnet µ½ 192.168.1.1£¬¸ü¸Ä root ÃÜÂ룬Ȼºó ssh Á¬È룬²Î¿¼£ºhttp://wiki.openwrt.org/doc/start#configuring.openwrt

b.ÅäÖà WAN ¿Ú£¬È÷ÓÉÁ¬ÉÏ Internet£¬²Î¿¼£ºhttp://wiki.openwrt.org/doc/howto/internet.connection ¡£

±ÈÈçÒªÅäÖà PPPoE£º

uci set network.wan.proto=pppoe
uci set network.wan.username='yougotthisfromyour@isp.su'
uci set network.wan.password='yourpassword'
uci commit network
ifup wan

c.°²×° LuCI Web ¹ÜÀí½çÃæ²¢ÉèÖÿª»ú×Ô¶¯Æô¶¯£¬²Î¿¼£ºhttp://wiki.openwrt.org/doc/howto/luci.essentials

opkg update
opkg install luci
/etc/init.d/uhttpd start
/etc/init.d/uhttpd enable

d.ä¯ÀÀÆ÷ÊäÈë·ÓÉÆ÷ LAN ²à IP(¶àΪ192.168.1.1)£¬½øÐÐ Wifi µÈÅäÖÃ

3.ÅäÖÃ DNS

a.´´½¨ /etc/config/sec_resolv.conf

vim /etc/config/sec_resolv.conf

ÌîÈëÒÔÏ DNS Servers:

nameserver 8.8.8.8
nameserver 8.8.4.4
nameserver 208.67.222.222

b.±à¼­ /etc/config/dhcp

vim /etc/config/dhcp

ÕÒµ½ option resolvfile Ñ¡Ïî£¬Ìæ»»Îª£º

option resolvfile '/etc/config/sec_resolv.conf'

4.ÅäÖÃ PPTP

a.°²×° ppp-mod-pptp

opkg updateopkg install ppp-mod-pptp

Èç¹ûÐèÒª LuCI Ö§³Ö(ÍÆ¼ö)£º

opkg install luci-proto-ppp

b.ÅäÖà vpn ½Ó¿Ú£¬±à¼­ /etc/config/network Îļþ£¬Ó¦¸ÃÒѾ­ÓÐÒÔÏÂÄÚÈÝ(Èç¹ûûÓУ¬ÐèÒª²åÈë)£¬²¢ÅäÖÃÀïÃæµÄ server¡¢username ºÍ password£º

config 'interface' 'vpn' 
option 'ifname' 'pptp-vpn'
option 'proto' 'pptp'
option 'username' 'vpnusername'
option 'password' 'vpnpassword'
option 'server' 'vpn.example.org or ipaddress'
option 'buffering' '1'

c.½øÈë Network -> Firewall £¬°Ñ vpn ¼ÓÈë wan zone£¬Ð§¹ûÈçͼ£º

d.½øÈë Network -> Interfaces £¬´ËʱӦ¸ÃÒѾ­¿ÉÒÔ¿´µ½ VPN Interface ²¢¿ÉÒÔÁ¬½Ó£¬Ð§¹ûÈçͼ£º

e.´ËʱÔÚ±¾»ú traceroute www.google.com£¬Ó¦¸ÃÄܵõ½ÀàËÆÒÔϵĽá¹û£º

FL-MBP:~ fatlyz$ traceroute www.google.com 
traceroute: Warning: www.google.com has multiple addresses; using 74.125.239.113
traceroute to www.google.com (74.125.239.113), 64 hops max, 52 byte packets
1 fc_r0.lan (192.168.7.1) 2.266 ms 0.999 ms 0.946 ms
2 10.7.0.1 (10.7.0.1) 189.259 ms 187.813 ms 188.368 ms
3 23.92.24.2 (23.92.24.2) 189.847 ms 190.489 ms 188.939 ms
4 10ge7-6.core3.fmt2.he.net (65.49.10.217) 188.508 ms 192.216 ms 202.863 ms
5 10ge10-1.core1.sjc2.he.net (184.105.222.14) 195.695 ms 195.691 ms 284.242 ms
6 72.14.219.161 (72.14.219.161) 189.196 ms 192.287 ms 193.220 ms
7 216.239.49.170 (216.239.49.170) 192.496 ms 188.547 ms 189.881 ms
8 66.249.95.29 (66.249.95.29) 190.125 ms 190.335 ms 190.026 ms
9 nuq05s01-in-f17.1e100.net (74.125.239.113) 189.804 ms 190.556 ms 190.242 ms

¿ÉÒÔ¿´³ö£¬ÆäÖеڶþÌøÊÇ VPN µÄÍø¹Ø£¬¶ø traceroute www.baidu.com µÄ»°µÚ¶þÌøÓ¦¸ÃÒ²ÊÇͬÑùµÄ½á¹û¡£

ÕâʱÒѾ­¿ÉÒÔ·ÃÎÊ Google, Baidu µÈ¹úÄÚÍâµÄÕ¾µãÁË¡£

5.ÅäÖÃ chnroutes

a.µ½ chnroutes ÏîÄ¿µÄÏÂÔØÒ³Ãæ£ºhttp://chnroutes-dl.appspot.com/ ÏÂÔØ linux.zip£¬½âѹ

b.°Ñ ip-pre-up ÖØÃüÃûΪ chnroutes.sh£¬´ò¿ª±à¼­£¬ÔÚ if [ ! -e /tmp/vpn_oldgw ]; then ǰ²åÈëÒÔÏ´úÂ룬ÒÔ±ÜÃâ ppp Á¬½Ó½Å±¾Öظ´Ö´Ðе¼ÖÂÖØ¸´Ìí¼Ó·ÓɱíÏ

if [ $OLDGW == 'x.x.x.x' ]; then exit 0 
fi

ÆäÖÐ x.x.x.x ÊÇ VPN µÄÍø¹Ø£¬¿ÉÒÔÏȱ¾»úÁ¬½ÓÉÏÈ¥Ö®ºó²é¿´Ò»ÏÂÍø¹ØµØÖ·¡£

c.ssh Á¬½Óµ½Â·ÓÉÆ÷£¬Ö´ÐÐÒÔÏÂÃüÁ

if [ $OLDGW == 'x.x.x.x' ]; then exit 0 
fi

ÔÚ vim Öаѱ༭ºÃµÄ chnroutes.sh Õ³Ìù½øÈ¥(µ±È»Ò²¿ÉÒÔͨ¹ý ssh Ö±½Ó°Ñ chnroutes.sh Îļþ´«¹ýÈ¥£¬»òÕßÉÏ´«µ½Ä³¸öµØ·½ÔÙ wget ÏÂÔØ)

Ö´ÐÐÒÔÏÂÃüÁÉèÖÃȨÏÞΪ¿ÉÖ´ÐУº

chmod a+x chnroutes.shs.sh

d.Óà vim ±à¼­ /lib/netifd/ppp-up Îļþ£º

vim /lib/netifd/ppp-up

ÔÚ [ -d /etc/ppp/ip-up.d ] && { ÕâÒ»ÐÐǰ²åÈëÒÔÏÂÄÚÈÝ£¬È·±£ ppp Á¬½Ó½Å±¾Äܹ»±»Ö´ÐУº

sh /etc/config/pptp-vpn/chnroutes.sh

e.ÖØÆô·ÓÉ£¬Æô¶¯ºÃÖ®ºó£¬½øÈë LuCI ²é¿´½Ó¿Ú״̬£¬µÈ WAN ºÍ VPN ¶¼Á¬½Ó³É¹¦ºó£¬ssh½øÈ¥£¬Ö´ÐÐ route -n | head -n 10 £¬Ð§¹ûÓ¦¸ÃÀàËÆÕâÑù£º

root@FC_R0:/etc/config# route -n | head -n 10 
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.7.0.1 0.0.0.0 UG 0 0 0 pptp-vpn
1.0.1.0 58.111.43.1 255.255.255.0 UG 0 0 0 pppoe-wan
1.0.2.0 58.111.43.1 255.255.254.0 UG 0 0 0 pppoe-wan
1.0.8.0 58.111.43.1 255.255.248.0 UG 0 0 0 pppoe-wan
1.0.32.0 58.111.43.1 255.255.224.0 UG 0 0 0 pppoe-wan
1.1.0.0 58.111.43.1 255.255.255.0 UG 0 0 0 pppoe-wan
1.1.2.0 58.111.43.1 255.255.254.0 UG 0 0 0 pppoe-wan
1.1.4.0 58.111.43.1 255.255.252.0 UG 0 0 0 pppoe-wan

ÆäÖÐ Destination Ϊ 0.0.0.0 µÄÊÇĬÈÏ·ÓÉ£¬Íø¹ØÎª VPN Íø¹Ø£¬Òâζ×ÅĬÈÏÁ÷Á¿¶¼¾­¹ý VPN£¬¶øÒÔϵÄÌõÄ¿Ôò°ÑÄ¿µÄΪ¹úÄÚµÄÍø¶Î¶¼Ö¸ÏòÁË ISP ÌṩµÄÍø¹Ø¡£

ÖÁ´Ë PPTP VPN ºÍ chnroutes ÒѾ­ÅäÖÃÍê±Ï¡£

6.ÅäÖà VPN ¶ÏÏß×Ô¶¯ÖØÁ¬

a.´´½¨ /etc/config/pptp-vpn/status-check.sh£º

vim /etc/config/pptp-vpn/status-check.sh

ÔÚ vim ÖÐÕ³ÌùÒÔÏÂÄÚÈÝ(´Ë½Å±¾¼ì²â VPN Á¬½Ó״̬£¬²¢ÔÚ¶ÏÏߺó»á¶Ï¿ª WAN ºÍ VPN ½Ó¿Ú£¬10ÃëºóÖØÐÂÁ¬½Ó WAN£¬²¢ÔÚ 30 ÃëºóÖØÁ¬ VPN)£º

#!/bin/sh
if [ -f "/tmp/vpn_status_check.lock" ]
then
exit 0
fi
VPN_CONN=`ifconfig | grep pptp-vpn`
if [ -z "$VPN_CONN" ]
then
touch /tmp/vpn_status_check.lock
echo WAN_VPN_RECONNECT at: >> /tmp/vpn_status_check_reconn.log
date >> /tmp/vpn_status_check_reconn.log
ifdown vpn
ifdown wan
sleep 10
ifup wan
sleep 30
ifdown vpn
sleep 10
ifup vpn
sleep 40
rm /tmp/vpn_status_check.lock
else
date > /tmp/vpn_status_check.log
fi

Ö´ÐÐÒÔÏÂÃüÁÉèÖÃȨÏÞΪ¿ÉÖ´ÐУº

chmod a+x /etc/config/pptp-vpn/status-check.sh

b.½øÈëLuCI µÄ System -> Scheduled Tasks ÌîÈëÒÔÏÂÄÚÈÝ£¬²¢±£´æ£º

*/1 * * * * /etc/config/pptp-vpn/status-check.sh

ÒÔÉÏʵ¼ÊÉÏÊDZ༭ÁË cron ÅäÖã¬cron ÿ·ÖÖÓÔËÐмì²â / ÖØÁ¬½Å±¾£¬ÖØÆô cron£º

/etc/init.d/cron restart

c.¾²´ý¼¸·ÖÖÓ£¬²é¿´ /tmp Ŀ¼£¬Ó¦¸ÃÄÜ¿´µ½ vpn_oldgw ºÍ vpn_status_check.log Îļþ£¬²é¿´ vpn_status_check.log Îļþ£¬¿ÉÒÔ¿´µ½×î½üÒ»´Î¼ì²â VPN Á¬½Ó״̬µÄʱ¼ä¡£

root@FC_R0:/tmp# ls vpn*
vpn_oldgw vpn_status_check.log
root@FC_R0:/tmp# cat vpn_status_check.log
Tue Jul 15 00:04:02 HKT 2014
root@FC_R0:/tmp#

¿ÉÒÔÔÚ LuCI ÖжϿª VPN ½Ó¿Ú£¬ÔÚ½ÓÏÂÀ´µÄ4-5·ÖÖÓ£¬¹Û²ì WAN ºÍ VPN µÄÖØÁ¬Çé¿ö¡£

d.·Ö±ð traceroute www.google.com ºÍ www.baidu.com £¬¹Û²ìµÚ¶þÌøµÄµØÖ·£º

FL-MBP:~ fatlyz$ traceroute www.google.com | head -n 3
traceroute: Warning: www.google.com has multiple addresses; using 74.125.239.115
traceroute to www.google.com (74.125.239.115), 64 hops max, 52 byte packets
1 fc_r0.lan (192.168.7.1) 2.161 ms 0.912 ms 0.895 ms
2 10.7.0.1 (10.7.0.1) 193.747 ms 187.789 ms 289.744 ms
3 23.92.24.2 (23.92.24.2) 259.323 ms 354.625 ms 408.535 ms

FL-MBP:~ fatlyz$ traceroute www.baidu.com | head -n 3
traceroute to www.a.shifen.com (180.76.3.151), 64 hops max, 52 byte packets
1 fc_r0.lan (192.168.7.1) 1.190 ms 0.984 ms 0.731 ms
2 58.111.43.1 (58.111.43.1) 20.616 ms 38.822 ms 18.484 ms
3 183.56.35.133 (183.56.35.133) 20.056 ms 52.353 ms 87.841 ms

¿ÉÒÔ¿´³ö£¬Òѳɹ¦¶Ô¹úÄÚÍâµÄÄ¿±êµØÖ·½øÐÐÁË·ÓÉÑ¡Ôñ¡£

ÖÁ´Ë£¬OpenWRT ·ÓɵĻù±¾ÅäÖá¢PPTP VPN¡¢chnroutes ºÍ×Ô¶¯ÖØÁ¬ÒѾ­ÅäÖÃÍê³É¡£

   
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