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On 03/11/12 11:46, Julian Hall wrote: >> Most routers can give the same IP address to the same machine every >> time, which in practise gives you static addresses. I think that's >> good enough. > Three ways of achieving that; > > a) Turn off the router's DHCP server and assign all machines static > internal IPs. Will cause problems for anyone who visits you should they > want access to the internet e.g. on a smartphone etc. Come to think of > it I don't think you can give any smartphone or a(ndroid) tablet a > static IP at all, so if you plan on using one on WiFi for these this is > not the option for you. (I'm open to being corrected on the latter point). > I do have a smart phone myself and use my wifi router to connect to the internet on it. When my son visits he also uses my wifi on his phone!! > b) Shift the IP range of the DHCP server up enough to allow space for > the machines you already have, and then assign them static IPs. e.g. > > router IP range 192.168.0.2 -> 192.168.0.50 > > Alter the range to 192.168.0.5 -> 192.168.0.50 :- That gives you three > free IP addresses at the bottom of the range to assign static to a > desktop and two laptops - 192.168.0.2/3/4. > > If however you add more machines at a later date you have to fiddle with > the range again, potentially screwing up current connections. > > c) Use IP reservations (assuming the function is available on your > router. This tells the router to give the same IP addresses to > equipment based on their MAC addresses. For example on my home system > my desktop, WiFi printer and NAS all have reserved IPs, so as far as the > network is concerned they're fixed. However my phone and tablet cannot > so they're dynamic and able to use the range available above the > reservations, as is anyone who visits. You still have to alter the > reservations if you change equipment, but only on devices that change. > > Julian > Thanks for all that. I will have a look at how the router is set up and take it from there. Neil -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq