anchor.diff:    mac_override_by_ip : true <1>
   ----
   <1> In this case, the client side MAC address looks like this:
  -SRC_MAC = IPV4(IP) + 00:00  
  -
  -=== IPv6 support 
  +SRC_MAC = IPV4(IP) + 00:00
  +
  +=== IPv6 support
   
   Support for IPv6 includes:
   
  
positive.code: .Low-end UCS C220 Mx - Internal components
  [options="header",cols="1,2",width="60%"]
  |=================
  | Components |  Details 
  | CPU  | 2x E5-2620 @ 2.0 GHz. 
  | CPU Configuration | 2-Socket CPU configurations (also works with 1 CPU).
  | Memory | 2x4 banks f.or each CPU. Total of 32GB in 8 banks.	 
  | RAID | No RAID.
  |=================
  
  .High-end C240 Mx - Internal components 
  [options="header",cols="1,2",width="60%"]
  |=================
  | Components |  Details 
  | CPU  | 2x E5-2667 @ 3.20 GHz.
  | PCIe | 1x Riser PCI expansion card option A PID UCSC-PCI-1A-240M4 enables 2 PCIex16.
  | CPU Configuration | 2-Socket CPU configurations (also works with 1 CPU).
  | Memory | 2x4 banks for each CPU. Total of 32GB in 8 banks. 
  | RAID | No RAID.
  | Riser 1/2 | Both left and right should support x16 PCIe. Right (Riser1) should be from option A x16 and Left (Riser2) should be x16. Need to order both.
  |=================
  
negative.code: *--nc*::
      If set, will terminate exacly at the end of the specified duration.
      This provides faster, more accurate TRex termination.
      By default (without this option), TRex waits for all flows to terminate gracefully. In case of a very long flow, termination might prolong.
  
  *--no-flow-control-change*::
      Since version 2.21. +
  