Specifications

LSNAT Configuration Example
September 8, 2010 Page 24 of 28
Configuring the myinternalSMTP Server Farm and Real Servers
ConfigurethemyinternalSMTPserverfarmby:
•NamingtheserverfarmmyinternalSMTP
• Configuringsimpleroundrobinastheloadbalancingalgorithmforthisserverfarm
ConfiguretherealserversonthemyinternalSMTPserverfarmby:
• Configuringthefollowingrealservers:10.10.10.6:25and10.10.10.7:25
• ConfiguringtheSMTPserversforbothpingandTCPportservice
verification
•Enablingeachrealserverbyplacingeachserverinservice
myinternalSMTP Server Farm and Real Servers CLI Input
System(rw-config)->ip slb serverfarm myinternalSMTP
System(rw-config-slb-sfarm)->predictor roundrobin
System(rw-config-slb-sfarm)->real 10.10.10.6 port 25
System(rw-config-slb-real)->faildetect type both
System(rw-config-slb-real)->inservice
System(rw-config-slb-real)->exit
System(rw-config-slb-sfarm)->real 10.10.10.7 port 25
System(rw-config-slb-real)->faildetect type both
System(rw-config-slb-real)->inservice
System(rw-config-slb-real)->exit
Configuring myinternal-25 Virtual Server
ConfigurethevirtualserverforthemyinternalSMTPserverfarmby:
•Namingthevirtualservermyinternal‐25
• AssociatingthevirtualserverwiththemyinternalSMTPserverfarm
• AssigningthevirtualserverIPaddresswiththeidletimeoutvalueof360seconds
•Placingthevirtualserverinservice
myinternal-25 Virtual Server CLI Input
System(rw-config)->ip slb vserver myinternal-25
System(rw-config-slb-vserver)->serverfarm myinternalSMTP
System(rw-config-slb-vserver)->virtual 194.56.13.3 tcp 25
System(rw-config-slb-vserver)->idle timeout 360
System(rw-config-slb-vserver)->inservice
System(rw-config-slb-vserver)->exit
System(rw-config)->
Notes: We will not modify the maximum number of active connections allowed on any real server
for this configuration example.