Ok, well proxy then, that would ban the nickname of the second person on that address. This should ban the host:

Code:
on @*:Join:#: {
  if ($ial == $false) { 
    .ial on 
  } 
  if ($chan($chan).ial == $false) { 
    who $chan 
  } 
  var %x = $ialchan($wildsite,$chan,0)
  if ($ialchan($wildsite,$chan,0) >= 1) {
    while (%x) {
      ban $chan $address($ialchan($wildsite,$chan,%x).nick,2)
      kick $chan $ialchan($wildsite,$chan,%x).nick You appear to be a clone.
      dec %x
    }
  }
}