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Port translation for multiple hosts behind single VIP
#################################################
#
# aFleX script to provide API port translation.
#
# Requires real servers en ports to be configured
# and to be member of a service-group.
# On the VIP it needs a VPORT 0 TCP
#
#################################################
when RULE_INIT {
set ::DEBUG 0
set ::REALPORT 8080
}
when CLIENT_ACCEPTED {
set destport [TCP::local_port]
if { $destport < 2001 or $destport > 2020 } {
if { ($::DEBUG == 1) } { log "Drop connection for port $destport" }
drop
}
switch $destport {
"2001" { set target 192.168.1.1 }
"2002" { set target 192.168.1.2 }
"2003" { set target 192.168.1.3 }
"2004" { set target 192.168.1.4 }
"2005" { set target 192.168.1.5 }
"2006" { set target 192.168.1.6 }
"2007" { set target 192.168.1.7 }
"2008" { set target 192.168.1.8 }
"2009" { set target 192.168.1.9 }
"2010" { set target 192.168.1.10 }
"2011" { set target 192.168.1.11 }
"2012" { set target 192.168.1.12 }
"2013" { set target 192.168.1.13 }
"2014" { set target 192.168.1.14 }
"2015" { set target 192.168.1.15 }
"2016" { set target 192.168.1.16 }
"2017" { set target 192.168.1.17 }
"2018" { set target 192.168.1.18 }
"2019" { set target 192.168.1.19 }
"2020" { set target 192.168.1.20 }
}
if { ($::DEBUG == 1) } { log "Target $target on port $::REALPORT" }
node $target $::REALPORT
} 0
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