G+_Ed Lazarus (thegrayarea Posted June 27, 2015 Share Posted June 27, 2015 Fr. Robert Ballecer, SJ most newer router allow you to manually assign DHCP address to a devices, which is a good alternative to Setting a static IP. I find it works good for wireless devices that you want to have the same IP when you connect at home, but also have to use outside of your network without having to reconfigure the network settings each time you connect to a different network. Link to comment Share on other sites More sharing options...
G+_Eddie Foy Posted June 27, 2015 Share Posted June 27, 2015 I do this with all on my LAN. A bit of a pain, but worth it. Link to comment Share on other sites More sharing options...
G+_Ed Lazarus (thegrayarea Posted June 27, 2015 Author Share Posted June 27, 2015 The biggest pain is finding the section of the router to set up the computers Link to comment Share on other sites More sharing options...
G+_Eddie Foy Posted June 27, 2015 Share Posted June 27, 2015 Looks like an Asus to me. Their layout is rather unintuitive to me. (I'm using a Synology NAS to do the DHCP. A lot easier to find/use., but still need to drill down.) Link to comment Share on other sites More sharing options...
G+_Ed Lazarus (thegrayarea Posted June 27, 2015 Author Share Posted June 27, 2015 its an asus TM-1900 Link to comment Share on other sites More sharing options...
G+_Ed Lazarus (thegrayarea Posted June 27, 2015 Author Share Posted June 27, 2015 I was looking at a synology has, but the finances don't allow me to have one at the moment. Link to comment Share on other sites More sharing options...
G+_Eddie Foy Posted June 27, 2015 Share Posted June 27, 2015 Yeah, not cheap. But, the bottom of the line and top of the line run the same OS/software. (some features don't apply to lower ends like high availability, and things like Docker need a bit of 'oomph' to run. But most everything is there. ) Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted June 27, 2015 Share Posted June 27, 2015 I've been using IP reserves for a while. I've got separate ranges for static wired, static wireless, and DHCP. Super handy for when I install a new OS - especially on the RPi. Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted June 28, 2015 Share Posted June 28, 2015 Gonna have to check my Asus router and see if it has this feature kind of like it. Thanks for sharing Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted June 28, 2015 Share Posted June 28, 2015 Could you clarify, what this does exactly? My DHCP currently has a group of 100 thru 150 ip addresses put aside for auto assigning ip addresses. Below a 100 I can manually assign ip addresses but I have to go to the device in question to assign below 100 ip address. Does this reach out to the device and assign the ip address you enter thereby saving you a trip to the device to setup the below 100 ip addresses? Link to comment Share on other sites More sharing options...
G+_Eddie Foy Posted June 28, 2015 Share Posted June 28, 2015 Rudy Trujillo What it does is when you connect via DHCP, you always get the same IP. So if you need to ping, ssh, etc. to the machine, the IP is always static. And avoids you having to config each machine manually. And centrally administered. Of course a device manually config'd will bypass any DHCP reservation settings. Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted June 28, 2015 Share Posted June 28, 2015 First off thank you Eddie. Logged into my Asus router to the area shown in the post, from the drop down list selected a device with a IP address assigned from the reserved IP pool between 100 and 150. Then I changed it to X.X.X.15 which are below the DHCP reserved pool IP addresses. Now it no longer shows up either under its old IP address or the newer one, called out here. Guess i misunderstood what this could do? Link to comment Share on other sites More sharing options...
G+_Eddie Foy Posted June 28, 2015 Share Posted June 28, 2015 Rudy Trujillo Nope. I think you got it right. It won't update the DHCP table until either a reconnect or the lease runs out. So what ever device you pushed to DHCP reservation pool, will be reassigned in a while (or reconnect). Check the IP on the device itself to verify it took. (or just ping the X.15) Link to comment Share on other sites More sharing options...
G+_Fr. Robert Ballecer, SJ Posted June 28, 2015 Share Posted June 28, 2015 When I have a device that I know will never leave the network, I still prefer to statically assign them. Not only does it make replacing the gateway easier, but it also makes them immune to ARP-spoofing (since I also set the local IP-to-MAC table) Link to comment Share on other sites More sharing options...
G+_Jason Marsh Posted June 29, 2015 Share Posted June 29, 2015 I like to use static IP or DHCP Reservations because I can KNOW what device I'm looking at when troubleshooting network problems. I have a range of IPs I use for each of a few different types of device on my network, and a printed layout showing device name, MAC, IP, etc. I could be a little different, though. When I was in an 1000 sq ft apartment I had something like 18 devices on my network. I had more when I was going BOINC crazy, but I've pared it all down a bit. Link to comment Share on other sites More sharing options...
G+_Rud Dog Posted June 29, 2015 Share Posted June 29, 2015 Eddie, trying another device today as the one I changed yesterday has disappeared from my network and don't know what it was but assuming it is an IP address the router once saw on the network that is no longer on. So I am trying again but this time with a well know device so I can confirm the setting. Will update when it releases or renews as I do not want to power it down and back up again. Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted June 30, 2015 Share Posted June 30, 2015 Fr. Robert Ballecer, SJ? - I hadn't thought about using static IPs to prevent ARP spoofing. Shouldn't be an issue in my home network (unless I'm doing the redirects ?), but good information for in a business. Link to comment Share on other sites More sharing options...
G+_Ed Lazarus (thegrayarea Posted June 30, 2015 Author Share Posted June 30, 2015 i'd never setup a business client with this. strictly for my devices, and mostly like i said wireless devices that i want to have the same address when i return without having to remember to turn back on the static ip. Link to comment Share on other sites More sharing options...
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