The Network Setup

The default gateway on the two targets needs to point to 10.1.1.254, which is represented by BalanceNG.
The Configuration Files
Node A
// configuration taken Fri Apr 26 19:03:02 2013 // BalanceNG 3.446 (created 2013/04/26) modules vrrp,arp,ping,hc,master,slb,tnat,nat,rt set ipforwarding 1 interface 1 { name eth0 access raw } interface 2 { name eth1 access raw } register interfaces 1,2 enable interface 1,2 vrrp { vrid 71 priority 200 network 1 } network 1 { name "DMZ Network" addr 172.16.1.0 mask 255.255.255.0 real 172.16.1.251 virt 172.16.1.253 nat outside interface 1 } network 2 { name "LN Network" addr 10.1.1.0 mask 255.255.255.0 real 10.1.1.252 virt 10.1.1.254 nat inside interface 2 } register networks 1,2 enable networks 1,2 gateway { ipaddr 172.16.1.254 ping 3,8 } server 1 { ipaddr 172.16.1.10 port 80 protocol tcp targets 1,2 } register server 1 enable server 1 target 1 { ipaddr 10.1.1.1 port 80 protocol tcp tcpopen 80,3,10 } target 2 { ipaddr 10.1.1.2 port 80 protocol tcp tcpopen 80,2,10 } register targets 1,2 enable targets 1,2 // end of configuration
Node B
// configuration taken Fri Apr 26 14:20:07 2013 // BalanceNG 3.446 (created 2013/04/26) modules vrrp,arp,ping,hc,master,slb,tnat,nat,rt set ipforwarding 1 interface 1 { name eth0 access raw } interface 2 { name eth1 access raw } register interface 1,2 enable interface 1,2 vrrp { vrid 71 priority 200 network 1 } network 1 { name "DMZ Network" addr 172.16.1.0 mask 255.255.255.0 real 172.16.1.252 virt 172.16.1.253 nat outside interface 1 } network 2 { name "LN Network" addr 10.1.1.0 mask 255.255.255.0 real 10.1.1.253 virt 10.1.1.254 nat inside interface 2 } register networks 1,2 enable networks 1,2 gateway { ipaddr 172.16.1.254 ping 3,8 } server 1 { ipaddr 172.16.1.10 port 80 protocol tcp targets 1,2 } register server 1 enable server 1 target 1 { ipaddr 10.1.1.1 port 80 protocol tcp tcpopen 80,3,10 } target 2 { ipaddr 10.1.1.2 port 80 protocol tcp tcpopen 80,2,10 } register targets 1,2 enable targets 1,2 // end of configuration
Things to verify
- You should be able to ping the default gateway 10.1.1.254 from the targets.
- You should be able to ping the virtual web server 172.16.1.10 from the router.
- Clients from the Internet are able to initiate TCP connection to port 80 on the virtual Web Server 172.16.1.10 (now being represented by BalanceNG).
- “show servers” and “show targets” in BalanceNG interactive mode should show everything up and operating.