Forum Discussion

Nimbostratus

Oct 20, 2014

10.2.4 LB::reselect doesn't seem to work

I have the below iRule that will change the destination port to a specific node in a pool. The log messages show up in the /var/log/ltm file indicating that the "if" statement works and the variable...

Employee

Oct 21, 2014

can you try something like this?

 configuration

root@ve10(Active)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.9:any
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        tcp { }
    }
    rules {
        qux
    }
    snat automap
}
root@ve10(Active)(tmos) list ltm pool foo
ltm pool foo {
    members {
        200.200.200.101:any { }
        200.200.200.111:any { }
    }
}
root@ve10(Active)(tmos) list ltm rule qux
ltm rule qux {
    when CLIENT_ACCEPTED {
  set pick [LB::select]
  log local0. "pick=$pick"
  set ip [lindex [split $pick " "] 3]
  log local0. "ip=$ip"
  switch $ip {
    200.200.200.101 {
      node $ip [TCP::local_port]
    }
    200.200.200.111 {
      node $ip [expr {[TCP::local_port] + 1}]
    }
    default {
       do something
    }
  }
}
when SERVER_CONNECTED {
  log local0. "client=[IP::client_addr]:[TCP::client_port] \
    virtual=[clientside {IP::local_addr}]:[clientside {TCP::local_port}] \
    server=[IP::server_addr]:[TCP::server_port]"
}
}

 /var/log/ltm

[root@ve10:Active] config  tail -f /var/log/ltm
Oct 21 22:20:16 local/tmm info tmm[4955]: Rule qux : pick=pool foo member 200.200.200.111 0
Oct 21 22:20:16 local/tmm info tmm[4955]: Rule qux : ip=200.200.200.111
Oct 21 22:20:16 local/tmm info tmm[4955]: Rule qux : client=172.28.24.1:32828  virtual=172.28.24.9:80  server=200.200.200.111:81

Oct 21 22:20:38 local/tmm info tmm[4955]: Rule qux : pick=pool foo member 200.200.200.101 0
Oct 21 22:20:38 local/tmm info tmm[4955]: Rule qux : ip=200.200.200.101
Oct 21 22:20:38 local/tmm info tmm[4955]: Rule qux : client=172.28.24.1:32829  virtual=172.28.24.9:80  server=200.200.200.101:80