From: unruh@invalid.ca   
      
   On 2012-08-10, Adam  wrote:   
   > Jim Beard wrote:   
   >> On 08/07/2012 08:54 PM, Adam wrote:   
   >>> what to do if a friend brings his/her laptop here and wants   
   >>> to get online using Wi-Fi.   
   >>   
   >> I suppose it would depend on the router, but I have my Actiontec   
   >> (actually Verizon's Actiontec) hand out specific local IP addresses to   
   >> specific machines.  That is still DHCP, just not dynamic DHCP.   
   >   
   > I'd better look into what to do should I get a guest with a laptop here.   
   >   Somehow sending them to the public library sounds a little rude. :-)   
   >   
   >> My local net has a few IP addresses not used.  One of those will be   
   >> handed out in dynamic fashion if a guest brings in a laptop and wants to   
   >> join the net.  The router is set to enforce encryption for all wireless   
   >> traffic, and that requires the password (key), so I don't have to worry   
   >> about neighbors accidentally making use of my FIOS connection.   
   >   
   > My router's set for WPA2 encryption also.  I imagine I'd have to give   
   > the SSID and current PSK to the guest, then change the PSK once he/she   
   > has left here.  I get signals from at least four neighbors who use Wi-Fi   
   > (there are 100+ apartments within 0.1 miles of me), so security is   
   > important here too.   
      
   Why change the key? Do youreally think your guest is going to sneak up   
   to your apt building next week and connect from outside your apartment?   
   Or is going to publish your psk in the local paper?   
      
   Changing the key occasionally is probably a good idea but after each   
   guest has left seems a bit overkill.   
   Security is not just being proactive but also making accurate   
   assessments of the attack probability and consequenses if it succeeds.   
      
   >   
   > Adam   
      
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