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Dear all,
I am trying to implement LVS/Tunnel with 1 load balancer and 2 real server:
Load Balancer:
Real IP : 202.34.196.211 (eth0)
Virtual IP : 202.34.196.212 (eth0:0)
Gateway: 202.34.196.209
My Ifconfig output:
[root@balancer ha.d]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0F:EA:zz:yy:xx
inet addr:202.34.196.211 Bcast:202.34.196.223
Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:669712 errors:0 dropped:0 overruns:0 frame:0
TX packets:580476 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:424022031 (404.3 MiB) TX bytes:44694004 (42.6 MiB)
Interrupt:209 Base address:0x8000
eth0:0 Link encap:Ethernet HWaddr 00:0F:EA:zz:yy:xx
inet addr:202.34.196.212 Bcast:202.34.196.212
Mask:255.255.255.255
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:209 Base address:0x8000
My sysctl.conf
[root@balancer ha.d]# sysctl -p
net.ipv4.ip_forward = 1
kernel.sysrq = 0
kernel.core_uses_pid = 1
Finally my ldirectord.cf:
checktimeout=10
checkinterval=1
autoreload=no
logfile="local0"
quiescent=yes
virtual=202.34.196.212:80
real=202.34.196.213:80 ipip
real=202.34.196.214:80 ipip
service=http
request="index.html"
receive="Test"
scheduler=rr
protocol=tcp
checktype=negotiate
My Real Server 1:
RIP: 202.34.196.213 (eth0) with gateway: 202.34.196.209
Tunnel IP: 202.34.196.212 (tunl0) with gateway: 202.34.196.212
my ifconfig output at real server 1
tunl0 Link encap:IPIP Tunnel HWaddr
inet addr:202.34.196.212 Mask:255.255.255.255
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:52 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3120 (3.0 KiB) TX bytes:0 (0.0 b)
my sysctl.conf at real server 1:
net.ipv4.ip_forward = 1
kernel.sysrq = 0
My Real Server 2:
RIP: 202.34.196.214 (eth0) with gateway: 202.34.196.209
Tunnel IP: 202.34.196.212 (tunl0) with gateway: 202.34.196.212
my ifconfig output at real server 2
tunl0 Link encap:IPIP Tunnel HWaddr
inet addr:202.34.196.212 Mask:255.255.255.255
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:52 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3120 (3.0 KiB) TX bytes:0 (0.0 b)
my sysctl.conf at real server 2:
net.ipv4.ip_forward = 1
kernel.sysrq = 0
HTTP services is up at real server 1 and 2. I can access directly to
http://202.34.196.213 (real server 1) and get Test page with strings
Test also I can access http://202.34.196.214 with strings Test.
All Firewall at Load Balancer, Real server 1 and 2 was flush. I can
access http services from load balancer to real server 1 & 2.
My ipvsadm output:
IP Virtual Server version 1.2.0 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 202.34.196.212:80 rr
-> 202.34.196.214:80 Tunnel 1 0 0
-> 202.34.196.213:80 Tunnel 1 0 0
[root@balancer ha.d]# ipvsadm -l -n --stats
IP Virtual Server version 1.2.0 (size=4096)
Prot LocalAddress:Port Conns InPkts OutPkts InBytes
OutBytes
-> RemoteAddress:Port
TCP 202.34.196.212:80 3 12 0
720 0
-> 202.34.196.214:80 2 6 0
360 0
-> 202.34.196.213:80 1 6 0
360 0
Try to access Load Balancer from outside and check connection at load
balancer:
[root@balancer ha.d]# ipvsadm -l -n --connection
IPVS connection entries
pro expire state source virtual destination
TCP 00:59 SYN_RECV 202.87.24.5:33354 202.34.196.212:80
202.34.196.213:80
But I always get time out from outside. Checked with tcpdump at load
balancer:
10:10:08.966109 IP 202.87.24.5.33363 > 202.34.196.212.http: S
3615203299:3615203299(0) win 5840 <mss 1460,sackOK,timestamp 7710594
0,nop,wscale 2>
10:10:11.964080 IP 202.87.24.5.33363 > 202.34.196.212.http: S
3615203299:3615203299(0) win 5840 <mss 1460,sackOK,timestamp 7713594
0,nop,wscale 2>
10:10:17.963790 IP 202.87.24.5.33363 > 202.34.196.212.http: S
3615203299:3615203299(0) win 5840 <mss 1460,sackOK,timestamp 7719594
0,nop,wscale 2>
But I never get output from tcpdump at real server 1 & 2.
any help will appreciate.
Regards,
Kalpin Erlangga Silaen
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