Layer7 IMQ Route Multipath Loadbalance Debian Lenny 2.6.28

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Debian Lenny, Clarkconnect Enterprise 4.3 Kernel 2.6.28, iptables 1.4.2 IMQ Route_Multipath patch contribute and test by [email protected] June 13 2009( Update 11 July 2009 )

Debian
[root@gateway ~]# apt-get install gzip unzip bzip2
[root@gateway ~]# apt-get install debhelper screen fakeroot zlib1g-dev build-essential libncurses5-dev kernel-package
Clarkconnect 4.3
[root@gateway ~]# apt-get install cc-devel

ดาวโหลด Package 

[root@gateway ~]# wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.28.tar.bz2
[root@gateway ~]# wget http://ufpr.dl.sourceforge.net/sourceforge/l7-filter/netfilter-layer7-v2.21.tar.gz
[root@gateway ~]# wget http://ufpr.dl.sourceforge.net/sourceforge/l7-filter/l7-protocols-2009-05-28.tar.gz
[root@gateway ~]# wget http://www.ssi.bg/~ja/routes-2.6.28-16.diff
[root@gateway ~]# wget http://www.linuximq.net/patchs/linux-2.6.28.9-imq-test2.diff
[root@gateway ~]# wget http://www.netfilter.org/projects/iptables/files/iptables-1.4.2.tar.bz2

แตกไฟล์ออกมา 

[root@gateway ~]# tar xjfv linux-2.6.28.tar.bz2
[root@gateway ~]# tar xjfv iptables-1.4.2.tar.bz2
[root@gateway ~]# tar zxvf netfilter-layer7-v2.21.tar.gz
[root@gateway ~]# tar xzfv l7-protocols-2009-05-28.tar.gz

สร้าง Symbol Link 

[root@gateway ~]# ln -s /usr/src/linux-2.6.28 /usr/src/linux

Patch Kernel ด้วย patch file 

[root@gateway ~]# cd linux 
[root@gateway ~]# patch -p1 </usr/src/netfilter-layer7-v2.21/kernel-2.6.25-2.6.28-layer7-2.21.patch
[root@gateway ~]# patch -p1 </usr/src/routes-2.6.28-16.diff
[root@gateway ~]# patch -p1 </usr/src/linux-2.6.28.9-imq-test2.diff
Config Kernel
[root@gateway ~]# make menuconfig

<source lang=bash> Networking support > Networking options > Network packet filtering framework (Netfilter) > Core Netfilter Configuration. [ ] layer7 match support

[*] select all [M] select all

<M> "IMQ" target support <M> "layer7" match support [*] "Layer7" debugging output

Networking support > Networking options > Network packet filtering framework (Netfilter) > IP: Netfilter Configuration.

[*] select all [M] select all <M> Full NAT

</source> Exit Save .config

คอมไพล์และติดตั้งมันซะ Deb + CC4.3 ( Options 1 ) 

[root@gateway ~]# make && make modules && make modules_install && make install

ทำให้มันบูท Kernel ใหม่ ( Debian Only ) CC4.3 ไม่ต้องทำ 

[root@gateway ~]# cd /boot
[root@gateway ~]# mkinitramfs -o initrd.img-2.6.28 2.6.28
[root@gateway ~]# update-grub
[root@gateway ~]# reboot

ถ้าต้องการ Compile และสร้าง .deb ด้วย ใช้คำสั่ง ( Options 2 ) 

[root@gateway ~]# make clean && make mrproper
[root@gateway ~]# cp /boot/config-`uname -r` ./.config
[root@gateway ~]# make menuconfig

<source lang=bash> Networking support > Networking options > Network packet filtering framework (Netfilter) > Core Netfilter Configuration. [ ] layer7 match support

[*] select all [M] select all

<M> "IMQ" target support <M> "layer7" match support [*] "Layer7" debugging output

Networking support > Networking options > Network packet filtering framework (Netfilter) > IP: Netfilter Configuration.

[*] select all [M] select all <M> Full NAT </source> Exit Save .config 

[root@gateway ~]# make-kpkg clean
[root@gateway ~]# fakeroot make-kpkg --initrd --append-to-version=-l7multiroute kernel_image kernel_headers
[root@gateway ~]# cd /usr/src
[root@gateway ~]# dpkg -i linux-image-*
[root@gateway ~]# dpkg -i linux-headers-*
[root@gateway ~]# reboot

ขี้เกียจคอมไพล์ ดาวโหลด

แก้ไข /boot/grub/menu.lst ( CC4.3 Only ) 

[root@gateway ~]# nano /boot/grub/menu.lst

<source lang=bash>

  1. grub.conf generated by anaconda
  3. Note that you do not have to rerun grub after making changes to this file
  4. NOTICE: You have a /boot partition. This means that
  5. all kernel and initrd paths are relative to /boot/, eg.
  6. root (hd0,0)
  7. kernel /vmlinuz-version ro root=/dev/sda3
  8. initrd /initrd-version.img
  9. boot=/dev/sda

default=1 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Linux (2.6.28) 

       root (hd0,0)
       kernel /vmlinuz-2.6.28 ro root=LABEL=/ video=vesafb vga=0x313
       initrd /initrd-2.6.28.img
  1. title Linux (2.6.18-93.cc4)
  2. root (hd0,0)
  3. kernel /vmlinuz-2.6.18-93.cc4 ro root=LABEL=/ video=vesafb vga=0x313
  4. initrd /initrd-2.6.18-93.cc4.img
  5. title Linux Safe Mode (2.6.18-93.cc4)
  6. root (hd0,0)
  7. kernel /vmlinuz-2.6.18-93.cc4 ro root=LABEL=/
  8. initrd /initrd-2.6.18-93.cc4.img

</source> Reboot เครื่อง 

[root@gateway ~]# reboot
ตรวจสอบ Kernel Version CC4.3
[root@gateway ~]# uname -a
Linux gateway.clarkconnect.lan 2.6.28 #1 SMP Fri Jun 19 13:17:45 ICT 2009 i686 i686 i386 GNU/Linux
ตรวจสอบ Kernel Version Debian Lenny
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Jun 19 12:02:27 2009 from 125.24.196.166.adsl.dynamic.totbb.net
gw:~# uname -a
Linux l7.mscompute.com 2.6.28 #2 SMP Sat Jun 13 18:19:43 ICT 2009 i686 GNU/Linux
คอมไพล์ iptables v1.4.2 เพื่อให้รองรับกับ layer7
[root@gateway ~]# cd /usr/src/iptables-1.4.2
[root@gateway ~]# cp /usr/src/netfilter-layer7-v2.21/iptables-1.4.1.1-for-kernel-2.6.20forward/* /usr/src/iptables-1.4.2/extensions/
[root@gateway ~]# ./configure --with-kernel=/usr/src/linux
[root@gateway ~]# make
[root@gateway ~]# make install
[root@gateway ~]# cd /usr/src/l7-protocols-2009-05-28
[root@gateway ~]# make install
[root@gateway ~]# cp /usr/local/sbin/iptables /sbin/
[root@gateway ~]# modprobe xt_layer7

แก้ไข /etc/rc.local 

[root@gateway ~]# nano /etc/rc.local

modprobe xt_layer7
modprobe xt_conntrack
modprobe nf_conntrack

ตรวจสอบ xt_layer7 

[root@gateway ~]# lsmod | grep xt_layer7
xt_layer7              14356  0
nf_conntrack           64392  14 xt_layer7,xt_CONNMARK,xt_state,nf_nat_pptp,nf_nat_irc,nf_nat_ftp,ipt_MASQUERADE,nf_conntrack_pptp,nf_conntrack_proto_gre,nf_conntrack_irc,nf_conntrack_ftp,iptable_nat,nf_nat,nf_conntrack_ipv4
x_tables               18188  10 xt_layer7,xt_CONNMARK,xt_mark,xt_tcpudp,xt_state,ipt_MASQUERADE,ipt_REJECT,ipt_LOG,iptable_nat,ip_tables
ทดสอบ layer7
[root@gateway ~]# iptables -A FORWARD -m layer7 --l7proto bittorrent -j DROP
[root@gateway ~]# iptables -A FORWARD -m layer7 --l7proto msnmessenger -j DROP
[root@gateway ~]# iptables -A FORWARD -m layer7 --l7proto fasttrack -j DROP

[root@gateway ~]# iptables -nvL | grep LAYER

<source lang=bash> 

 533 50633 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto bittorrent state NEW

30091 2183K DROP all -- * * 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto edonkey state NEW 

   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto fasttrack state NEW
   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto gnutella state NEW

74468 6939K DROP all -- * * 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto bittorrent state NEW 

325K   24M DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto edonkey state NEW
   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto fasttrack state NEW
   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto gnutella state NEW
   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto bittorrent state NEW

17392 1161K DROP all -- * * 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto edonkey state NEW 

   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto fasttrack state NEW
   0     0 DROP       all  --  *      *       0.0.0.0/0       0.0.0.0/0       LAYER7 l7proto gnutella state NEW

</source>

ทดสอบ IMQ

http://www.linuximq.net/usage.html

คุณสามารถใช้สคริบด้านล่างเพื่อ Balance Link ได้

<source lang=bash>

  1. !/bin/bash
      2. IP Route Script ###
      3. mscompute.com ###
      4. 12 July 2009 ###
  2. IP Route Balance script on virtual interface
  4. requirement edit /etc/network/interface 3 virtual interface

RT_TABLES=/etc/iproute2/rt_tables TABLE_PREFIX=router

  1. Internet Link 1

EXT_IF1=eth0 EXT_IP1=192.168.2.101 EXT_NETWORK1=192.168.2.0/24 EXT_GW1=192.168.2.1

  1. Internet Link 2

EXT_IF2=eth0:1 EXT_IP2=192.168.3.101 EXT_NETWORK2=192.168.3.0/24 EXT_GW2=192.168.3.1

  1. Internet Link 3

EXT_IF3=eth0:2 EXT_IP3=192.168.4.101 EXT_NETWORK3=192.168.4.0/24 EXT_GW3=192.168.4.1

  1. Check pre-defined tables name

rt_tables=`cat ${RT_TABLES} | grep "200 ${TABLE_PREFIX}0" | wc -l` if [ $rt_tables -eq 0 ]; then 

 ## Create the route tables name from prefix
 echo ""  >> ${RT_TABLES}
 echo "#" >> ${RT_TABLES}
 echo "# Added by PPP Load Balancer" >> ${RT_TABLES}
 echo "#" >> ${RT_TABLES}

 for (( i = 0; i < 10; i++ )); do
   echo "20${i}	${TABLE_PREFIX}${i}" >> ${RT_TABLES}
 done

fi

  1. Link 1

ip route add $EXT_NETWORK1 dev $EXT_IF1 src $EXT_IP1 table 201 ip route add default via $EXT_GW1 table 201

ip rule add from $EXT_IP1 table 201 ip rule add fwmark 0x201 table 201


  1. Link 2

ip route add $EXT_NETWORK2 dev $EXT_IF2 src $EXT_IP2 table 202 ip route add default via $EXT_GW2 table 202

ip rule add from $EXT_IP2 table 202 ip rule add fwmark 0x202 table 202

  1. Link 3

ip route add $EXT_NETWORK3 dev $EXT_IF3 src $EXT_IP3 table 203 ip route add default via $EXT_GW3 table 203

ip rule add from $EXT_IP3 table 203 ip rule add fwmark 0x203 table 203


  1. For 2 Link
  2. ip route add default scope global equalize nexthop via $EXT_GW1 dev $EXT_IF1 weight 1 nexthop via $EXT_GW2 dev $EXT_IF2 weight 1
  1. For 3 Link

ip route add default scope global equalize nexthop via $EXT_GW1 dev $EXT_IF1 weight 1 nexthop via $EXT_GW2 dev $EXT_IF2 weight 1 nexthop via $EXT_GW3 dev $EXT_IF3 weight 1

  1. ip route add 192.168.1.0/24 mpath rr nexthop via $EXT_GW1 weight 1 nexthop via $EXT_GW2 weight 1 nexthop via $EXT_GW3 weight 1
    1. End Script ##

</source>


References


http://www.ssi.bg/~ja/#routes-2.6

http://l7-filter.sourceforge.net/protocols

Protocal Definition /etc/l7-protocols

http://www.linuximq.net/

http://www.howtoforge.com/kernel_compilation_debian_etch

http://www.linuximq.net/usage.html

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