I have configured LVS on cent os using piranha tool .I am using vip of internal n/w as gateway for real server we have two NIC one having exteranl Ip and other for internal n/w which is on 192.168.3.0/24 network.

But I am not able to connect from client it shows connection refused error

. Please suggest iptables rules for private n public n/w to communicate. May be I am missing this . Iptables rules that we have added are :

 iptables -t nat -A POSTROUTING -p tcp -s 192.168.3.0/24 --sport 5000 -j MASQUERADE

this is my ipconfig:

eth0      Link encap:Ethernet  HWaddr 00:00:E8:F6:74:DA 
          inet addr:122.166.233.133  Bcast:122.166.233.255  Mask:255.255.255.0
          inet6 addr: fe80::200:e8ff:fef6:74da/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:94433 errors:0 dropped:0 overruns:0 frame:0
          TX packets:130966 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9469972 (9.0 MiB)  TX bytes:19929308 (19.0 MiB)
          Interrupt:16 Base address:0x2000

eth0:1    Link encap:Ethernet  HWaddr 00:00:E8:F6:74:DA 
          inet addr:122.166.233.136  Bcast:122.166.233.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:16 Base address:0x2000

eth1      Link encap:Ethernet  HWaddr 00:E0:20:14:F9:2D 
          inet addr:192.168.3.1  Bcast:192.168.3.255  Mask:255.255.255.0
          inet6 addr: fe80::2e0:20ff:fe14:f92d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:123718 errors:0 dropped:0 overruns:0 frame:0
          TX packets:148856 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:18738556 (17.8 MiB)  TX bytes:11697153 (11.1 MiB)
          Interrupt:17 Memory:60000400-600004ff

eth1:1    Link encap:Ethernet  HWaddr 00:E0:20:14:F9:2D 
          inet addr:192.168.3.10  Bcast:192.168.3.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:17 Memory:60000400-600004ff

eth2      Link encap:Ethernet  HWaddr 00:16:76:6E:D1:D2 
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:21 Base address:0xa500

and ipvsadm -ln command

[root@abts-kk-static-133 ~]# ipvsadm -ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  122.166.233.136:5000 wlc
TCP  122.166.233.136:5004 wlc

lvs server routing table
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.3.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
122.166.233.0   0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 virbr0
169.254.0.0     0.0.0.0         255.255.0.0     U     1003   0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1004   0        0 eth1
0.0.0.0         122.166.233.1   0.0.0.0         UG    0      0        0 eth0

real 1

real 2

we have configured various ports from 5000:5008 .

Do we need to this iptables for all ports?

Suggest me how should I solve this issue.