View Full Version : IT guys and computer nerds I have a question?
Pandemonium 10-10-2011, 07:17 PM What keeps causing all my devices on my router to keep changing ip addresses? I am aware that I dont have a static ip and that it costs money to have. The power went off a few times the other day and one of the times I notices it had rearranged my pcs ip addresses again.
Is it related to power outages or rebooting? Should I put a ups on my router? Or put one on the dvr? Problem is I have a dvr that keeps changing its damn ip so I have to keep editing the forwarded ports via the router to be able to access it each time it decides to change the ip.
It just keeps changing the last digit of all my computers and its screwing up my network magic program because the stupid thing thinks the old ip number is still what it was and its not.
Ron V 10-10-2011, 07:28 PM A UPS would definitely help with the short outages. Check with your service provider, I have run across several that include 1 or sometimes 2 IPs with your account. They just don't advertise it. If you go to your account manager sometimes you can turn them on by yourself and see what the address is. Then set your DVR to that IP and you should be fine.
Pandemonium 10-10-2011, 07:46 PM A UPS would definitely help with the short outages. Check with your service provider, I have run across several that include 1 or sometimes 2 IPs with your account. They just don't advertise it. If you go to your account manager sometimes you can turn them on by yourself and see what the address is. Then set your DVR to that IP and you should be fine.
My main ip seems to stay the same, its everything on the router that change, I dont mind all but the dvr changing. Am I lost? lol
DDave 10-10-2011, 08:11 PM What keeps making your IP addresses change is DHCP (Dynamic Host Configuration Protocol). If a device does not have a static IP, a DHCP server, in this case your router, is giving them an address. But usually the lease time is long enough that even a power outage should not cause them to get a different address. These are private IPs on your side (LAN) of the network, not public IPs on the Internet (WAN) side.
Depending on your router, you can assign a range that it will use for the DHCP pool and assign static IPs outside this range. You could assign statics to the devices on your network that you don't want to change. You must also assign a gateway, a subnet mask, and DNS server but these are easy to determine based on what the DHCP server is giving the devices now.
I can tell you more later, if you're interested. I have to go slice my tri tip now. :lol:
Dave
Texas-Hunter 10-10-2011, 08:12 PM What keeps making your IP addresses change is DHCP (Dynamic Host Configuration Protocol). If a device does not have a static IP, a DHCP server, in this case your router, is giving them an address. But usually the lease time is long enough that even a power outage should not cause them to get a different address. These are private IPs on your side (LAN) of the network, not public IPs on the Internet (WAN) side.
Depending on your router, you can assign a range that it will use for the DHCP pool and assign static IPs outside this range. You could assign statics to the devices on your network that you don't want to change. You must also assign a gateway and DNS server but these are easy to determine based on what the DHCP server is giving the devices now.
I can tell you more later, if you're interested. I have to go slice my tri tip now. :lol:
Dave
Huh???
.
Pandemonium 10-10-2011, 08:48 PM Im with you on the first paragraph and halfway through the second, thanks Dave
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DDave 10-10-2011, 08:51 PM Huh???
I can walk him through it. :lol: He's already doing port forwarding on the router so it shouldn't be too difficult. :thumb:
Dave
Pandemonium 10-10-2011, 09:10 PM I can walk him through it. :lol: He's already doing port forwarding on the router so it shouldn't be too difficult. :thumb:
Dave
LOL I hope so:thumb:
Pandemonium 10-10-2011, 09:16 PM Eat your tri tip, dont worry bout my crap tonight
DDave 10-10-2011, 09:47 PM Here is the section of my router configuration screen that has to do with DHCP.
http://i244.photobucket.com/albums/gg21/DrowzyDave/Misc%202/routerdhcp.jpg
My router's IP address is 192.168.10.1. The Subnet Mask is 255.255.255.0. This is the most common. Don't worry about it. It is what it is. It would bore you and everyone else who reads this to tears if I tried to explain it.:lol:
I have enabled DHCP server functionality on the router. I only want it to hand out 10 IP addresses starting at 192.168.10.10 and ending at 192.168.10.19. This means I can statically assign IP addresses from 192.168.10.2 (because .1 is used by the router) to 192.168.10.9 AND 192.168.10.20 through 192.168.10.254.
The Client Lease Time is 24 hours which means that even if the device is powered off, if it requests an IP address within 24 hours of previously being assigned one, it will get the same IP address. If the lease expires while the device is powered on, the lease is automatically renewed and it retains the same address.
The Static DNS is set to 0.0.0.0 which means it will just give out the DNS IP address that the router got from the cable modem. (Don't worry about this either.)
In order to assign addresses on your network, we need to determine the following:
--what range your network is in
--what the gateway address is (it will be your router address)
--the subnet mask
--what the address of the DNS server(s) is
To help find this information, open a command prompt (DOS Window) and type
ipconfig /all
and press Enter.
The output should look something like this.
C:\>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : PARENTS
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controller
Physical Address. . . . . . . . . : 00-12-3F-49-36-3A
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.10.13
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.10.1
DHCP Server . . . . . . . . . . . : 192.168.10.1
DNS Servers . . . . . . . . . . . : 192.168.1.254
Lease Obtained. . . . . . . . . . : Monday, October 10, 2011 7:08:28 PM
Lease Expires . . . . . . . . . . : Tuesday, October 11, 2011 7:08:28 PM
As you can see, my network range is 192.168.10. All the addresses on this segment of the network must start with 192.168.10.
The gateway address is 192.168.10.1.
The subnet mask is 255.255.255.0.
The DNS Server address is 192.168.1.254. That is the IP address of my cable modem and this is a pretty common setup as well.
To statically assign IP addresses for your devices will need to enter the IP address, subnet mask, gateway, and DNS server. The gateway, subnet mask, and DNS server will be the same for all devices. The last part of the IP address must be different but the first three octets (in my case 192.168.10) must be the same. I don't have that many devices on my network that need a static IP so I only use .1 for the router and .2 through .6 for the other devices. You can really use any one you want as long as it isn't duplicated on your network and is outside the DHCP pool.
Hope this makes some sense. :lol:
If it doesn't, just post the results of the ipconfig /all command and maybe a screen shot of your router DHCP config and we can take it from there.
Dave
Pandemonium 10-10-2011, 09:56 PM Wow Dave thanks ill see what I can do
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Fishawn 10-10-2011, 09:58 PM Porn :noidea:
Pandemonium 10-10-2011, 10:00 PM Porn :noidea:
Oh god this wont block me porn. I hope Dave
Sent from a cell phone that is way cooler than yours!! Eat It!! $
Fishawn 10-10-2011, 10:05 PM Oh god this wont block me porn. I hope Dave
Sent from a cell phone that is way cooler than yours!! Eat It!! $
Try www.oldfolkswearingnixonmasks.com if you get bored...... Or not... :whistle:
Sent from the man cave while wearing a Nixon mask......
DDave 10-10-2011, 10:07 PM Oh god this wont block me porn. I hope Dave
Only if you use the FamilyShield DNS servers IP addresses. :lol:
I don't know if you have kids or not but if you put these DNS server IPs on their devices, it does a certain amount of filtering.
208.67.222.123
208.67.220.123
Helpful for devices like Nintendo DS and the like that have a web browser and can't run software like NetNanny. :thumb:
Dave
Pandemonium 10-10-2011, 10:12 PM Dave from what ive read its the isp that gives you a static and usually charge extra? So your saying my router will assign this static ip? just want to make sure
On edit ok I see yes the router does it free
DDave 10-10-2011, 10:36 PM Dave from what ive read its the isp that gives you a static and usually charge extra? So your saying my router will assign this static ip? just want to make sure
On edit ok I see yes the router does it free
The ISP can give you static IPs but you don't need them to. You can assign private static IPs yourself to your devices if you have a router between your ISP modem and your network. Your router can't assign a static. It can only assign a dynamic (which might change over time) address.
I have AT&T DSL. The DSL modem plugs into the WAN (Wide Area Network or Internet) port on my router. All of the devices on my network connect to the LAN (Local Area Network) ports of my router. (This can be done wirelessly or by wired connection.) I can assign addresses on the LAN side myself or I can let my router assign them. If I assign them myself, I need to make sure they are in the right range and I have to supply all of the other settings that a DHCP server would in order for the device to be able to communicate I can't control the addresses on the WAN side though, nor would I want to. That is the AT&T network engineer's job.
Hope this helps.
Dave
Pandemonium 10-10-2011, 11:15 PM My Netgear has a tab that says static routes, I think thats where I need to be?
Wingman 10-10-2011, 11:21 PM I tried the static IP route but kept getting shocked every time I touched my mouse so I set it back. I might try grounding my mouse next time. If that does'nt work Maybe I'll use a Cling Free laundry sheet for a mouse pad.
Thanks Dave! :whistle:
Pandemonium 10-10-2011, 11:28 PM Im pretty sure on what to do other than picking the ip to give it, I understand that the dvr is currently 192.168.1.5 so I know all will be the same except the 5 right? that I have to change?
DDave 10-11-2011, 07:24 AM My Netgear has a tab that says static routes, I think thats where I need to be?
No. Routes are totally different. You assign static IP addresses on the device themselves -- DVR, computer, etc. On your router look for something that says DHCP server setup.
Im pretty sure on what to do other than picking the ip to give it, I understand that the dvr is currently 192.168.1.5 so I know all will be the same except the 5 right? that I have to change?
That is correct but you also need to know that you are not assigning an IP address that is in the DHCP pool. If you statically assign it 192.168.1.5 and your router gives that address to another device (laptop or something that connects later) then neither device will be able to communicate.
I would guess that the Netgear is using 192.168.1.2 to 192.168.1.100 for the DHCP pool so if you assigned addresses starting at 192.168.1.101 you should be fine. But it would be better to look at the router config pages and find out for sure.
You also need to enter the subnet mask (most likely 255.255.255.0) the gateway address (most likely 192.168.1.1) and the DNS server addresses. You can find these by using ipconfig /all. There are some publicly available DNS server IPs that you can use if need be.
If you can post the results of the ipconfig /all command and the model number of your router, I think we can pretty much nail it down from there. :thumb:
Dave
Pandemonium 10-11-2011, 09:07 AM I will post that info soon, thanks for the major help Dave
Sent from a cell phone that is way cooler than yours!! Eat It!! $
Pandemonium 10-11-2011, 06:44 PM here
Pandemonium 10-11-2011, 06:53 PM I need a beer :sweating::faint:
DDave 10-11-2011, 06:55 PM here
Address Reservations is probably the easiest way to go from here.
When you click the Add button underneath the Address Reservation section, do you see a list of connected devices on your network?
Dave
Pandemonium 10-11-2011, 06:56 PM So Dave my numbers are 192.168.1.2 to 192.168.1.254 so tell me what last three digits to use?
Pandemonium 10-11-2011, 06:57 PM Address Reservations is probably the easiest way to go from here.
When you click the Add button underneath the Address Reservation section, do you see a list of connected devices on your network?
Dave
yes i do it shows the dvr and other crap
DDave 10-11-2011, 07:00 PM See next post. :whistle:
Dave
DDave 10-11-2011, 07:02 PM yes i do it shows the dvr and other crap
Perfect!!
Then just follow the instructions that you pasted into the PM which were.
To reserve an IP address:
Click the Add button.
Select the radio button of the computer you wish to add from the Address Reservation Table.
Click the Add button when finished.
Then click the Apply button after you have all the ones added that you want to add. :thumb:
Dave
Pandemonium 10-11-2011, 07:05 PM Perfect!!
Then just follow the instructions that you pasted into the PM which were.
Then click the Apply button after you have all the ones added that you want to add. :thumb:
Dave
That was too easy heres the final shot, does it look right?
Pandemonium 10-11-2011, 07:07 PM Sweet so now the ip will not change now?
DDave 10-11-2011, 07:09 PM That was too easy heres the final shot, does it look right?
Looks perfect!! :thumb:
Now just do that for all the other devices that you want to keep the same IP addresses on and you should be good to go. :thumb:
Assuming the Netgear firmware is working correctly. :lol:
Dave
Pandemonium 10-11-2011, 07:12 PM Looks perfect!! :thumb:
Now just do that for all the other devices that you want to keep the same IP addresses on and you should be good to go. :thumb:
Assuming the Netgear firmware is working correctly. :lol:
Dave
Awesome Dave! Thanks for all the help, I really appreciate it! You Da man!:banana_smiley::banana_smiley:
Id cook you ribs if you didnt already know how and didnt have a super computer hooked up to your drum. haha
DDave 10-11-2011, 07:29 PM Awesome Dave! Thanks for all the help, I really appreciate it!
You're welcome. :thumb:
Keep an eye on it and IF it changes, I can walk you through changing the DHCP pool and assigning static IPs to your devices.
Dave
Pandemonium 10-11-2011, 08:28 PM You're welcome. :thumb:
Keep an eye on it and IF it changes, I can walk you through changing the DHCP pool and assigning static IPs to your devices.
Dave
Will do!:thumb:
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