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BalanceNG V3: IPv6 SLB (Server Load-Balancing) in DSR mode
This example is working with current releases of BalanceNG V3 and requires valid licensing (testing licenses are available on request).
The sessionid declaration can be set to "src" if the session should base only on the IPv6 source address ("server 1 sessionid src").
The IPv6 configuration and loopback alias is setup in /etc/network/interfaces on the
Debian based target servers as follows:
IPv6 configuration in /etc/network/interfaces on Target 1
iface eth0 inet6 static
address 2001:DB8::1:1
netmask 32
iface lo inet6 static
address 2001:db8::2:4
netmask 128
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IPv6 configuration in /etc/network/interfaces on Target 2
iface eth0 inet6 static
address 2001:DB8::1:2
netmask 32
iface lo inet6 static
address 2001:db8::2:4
netmask 128
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The VRRP Master Configuration File
// configuration taken Mon Aug 16 16:34:46 2010
// BalanceNG 3.320 (created 2010/08/16)
license TESTA 39ed5ff716d8a118a7c61f777cbb0446
modules vrrp,arp,ping,hc,master,slb
interface 1 {
name eth0
}
register interface 1
enable interface 1
vrrp {
vrid 40
priority 200
network 1
}
network 1 {
addr 10.1.0.0
mask 255.255.0.0
real 10.1.0.1
mask6 32
real6 2001:db8::2:1
virt6 2001:db8::2:3
interface 1
}
register network 1
enable network 1
server 1 {
ipaddr6 2001:db8::2:4
sessionid src+port
port 80
protocol tcp
targets 1,2
}
register server 1
enable server 1
target 1 {
ipaddr6 2001:db8::1:1
port 80
protocol tcp
ping6 3,10
dsr enable
}
target 2 {
ipaddr6 2001:db8::1:2
port 80
protocol tcp
ping6 3,10
dsr enable
}
register targets 1,2
enable targets 1,2
// end of configuration
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The VRRP Backup Configuration File
// configuration taken Mon Aug 16 16:34:46 2010
// BalanceNG 3.320 (created 2010/08/16)
license TESTB d5b787e61745533a8c5858a3a5f2e855
modules vrrp,arp,ping,hc,master,slb
interface 1 {
name eth0
}
register interface 1
enable interface 1
vrrp {
vrid 40
priority 200
network 1
}
network 1 {
addr 10.1.0.0
mask 255.255.0.0
real 10.1.0.2
mask6 32
real6 2001:db8::2:2
virt6 2001:db8::2:3
interface 1
}
register network 1
enable network 1
server 1 {
ipaddr6 2001:db8::2:4
sessionid src+port
port 80
protocol tcp
targets 1,2
}
register server 1
enable server 1
target 1 {
ipaddr6 2001:db8::1:1
port 80
protocol tcp
ping6 3,10
dsr enable
}
target 2 {
ipaddr6 2001:db8::1:2
port 80
protocol tcp
ping6 3,10
dsr enable
}
register targets 1,2
enable targets 1,2
// end of configuration
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Testing Dialog in "bng control" Mode
bng# sh vrrp
state MASTER
vrid 40
priority 200
ipaddr0 2001:db8::2:3
ipaddr1 2001:db8::2:4
bng# sh sessions
7 sessions
srv tgt age timeout session-id
--- --- ---- ------- ------------------
1 1 7 600 2001:db8::1:6.46354
1 2 8 600 2001:db8::1:6.46353
1 1 9 600 2001:db8::1:6.46352
1 2 11 600 2001:db8::1:6.46351
1 1 12 600 2001:db8::1:6.46350
1 2 26 600 2001:db8::1:6.46349
1 1 57 600 2001:db8::1:6.46341
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Please contact us in case of any questions, errors or suggestions
at info@inlab.de.
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