On Wed, 25 Feb 2015, Ed Vance wrote to mark lewis:   
      
    ml> yes... and if you have to change the NIC, there'll be a new MAC...    
    ml> the MAC is assigned to the NIC, not the machine... laptops with    
    ml> both cable and wifi capabilities have at least two MACs...   
      
    EV> I'd think the only to change the NIC would if I replaced the    
    EV> Motherboard in this desktop pc.   
      
   i'd start by adding a new NIC and plugging it into an available slot ;) you   
   wanted to not use the one on the motherboard, disable it in the BIOS if it can   
   be... perhaps you might want gigabyte speeds on your internal network and the   
   MB NIC is only 10/100 ;)    
      
    ml> DHCP address reservations (aka psuedo-static) are made based on    
    ml> the MAC...   
      
    EV> As I learned, which ever pc is turned on first around here gets    
    EV> the DHCP Server .100 IP Address, and the next one turned on gets    
    EV> something other than .100 .   
      
   here's the thing about DHCP... each machine's DHCP client will (should!)   
   request the address it had last... some machines are very persistent over time   
   in asking for an old address they may not have had for 25 connections or   
   more... the DHCP server will (should!) offer the last address that a specific   
   client had the last time it was connected... many blackbox routers (aka those   
   bought at the local circut city or best buy or similar) have DHCP servers in   
   them but their implementation is generally not as robust as it could be...   
      
    EV> Thanks for helping me.   
      
   not a problem :)    
      
    EV> As I told Ben, I may have figured a way to keep this XP pc using   
    EV> the . 100 IP Address.   
      
   the best way to do that is to go to your modem/router thing's configuration   
   page and in the DHCP section, set a reservation of .100 to your workstation   
   and set .101 to the other machine... in fact, you might want to set   
   reservations for all devices on your network so that you know they will never   
   change... then if at some point you need to renumber your network, you simply   
   do it in this configuration page... all of the machines i manage are handled   
   this way ;)    
      
   )\/(ark   
      
    * Origin:  (1:3634/12)