jamepc
join:2012-02-04
Palm Coast, FL | [Windows] Find IP Hello,
I have 2 wireless networks. One is on the BrightHouse router/modem combo unit and the other is on a Belkin N+ router hooked up as an access point. I had to use the Belkin because I just didn't have good range and speed with the Brighthouse Ubee modem/router.
I need to access the Belkin router to make changes but cannot remember the ip address. How can I figure this out?
Thanks for any help! |
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LLigetfa
join:2006-05-15
Fort Frances, ON
kudos:1 | Put a sniffer on the wire and power cycle the router. Chances are that it will announce itself.
Alternately, you could try pinging the broadcast addy and see what replies.
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey |
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 tschmidtPremium,MVM
join:2000-11-12
Milford, NH
kudos:5
 ·Fairpoint Commun..
 ·Hollis Hosting
| reply to jamepc
From your description I assume you configured the Belkin statically. Otherwise you could just check the BrightHouse DHCP server to find the address of the Belkin AP.
Assuming it is set statically may want to try AngryIP. It will walk through a range of addresses and display which ones respond.
»www.angryip.org/w/Home
I've found it to be a very useful network troubleshooting tool.
/tom |
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jamepc
join:2012-02-04
Palm Coast, FL | reply to jamepc
I tried AngryIP and searched a few ranges of what I thought it may be. I didn't know if there was a way to have it search a broader range like 192.168.0.xxx - 192.168.100.xxx
I can power cycle the router but not sure about the sniffer part? How's that done?
Also don't know what you mean about "pinging the broadcast addy"
I checked the Client List and DHCP Server in the Brighthouse modem but it didn't list the Belkin Router. It lists all the devices on 192.168.0.xxx
Does that mean it's on a different range like 192.168.x?
Thanks again for any help! |
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LLigetfa
join:2006-05-15
Fort Frances, ON
kudos:1 | If your network is a 192.168.0.0/16 CIDR, the broadcast addy would be 192.168.255.255.
My home network is 192.168.1.0/24 CIDR so ping 192.168.1.255 invokes a response from my dd-wrt router.
Sniffing would be done with software such as WireShark. I sometimes use NMap to sweep a range of IPs.
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey |
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tschmidtPremium,MVM
join:2000-11-12
Milford, NH
kudos:5 Reviews:
·Fairpoint Commun..
·Hollis Hosting
| reply to jamepc
said by jamepc: I checked the Client List and DHCP Server in the Brighthouse modem but it didn't list the Belkin Router. It lists all the devices on 192.168.0.xxx It all depends on what the subnet mask is set to. Assuming it is set to 255.255.255.0 all the devices on your LAN must be in the range of 192.160.0.1 - 192.168.0.254 this is called a /24 since the first 24-bits of the 32-bit address space are fixed. This leaves 8-bits for host addresses on the network. If the subnet mast is something else you will have a larger or smaller address space to work with.
Are you sure the Belkin router has not been defaulted? In that case will need to determine what address it defaults to, set a static address on one of your PCs to do the AP initial configuration.
/tom |
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jamepc
join:2012-02-04
Palm Coast, FL | Using angryip, I scanned 192.168.0.1 - 192.168.100.255 but it did not see the Belkin router. Maybe that range was a waste of time but I don't know much about IP addresses.
Can I just plug the Belkin router directly into my PC and access it?
Any other ideas?
Thanks again! |
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cramer
join:2007-04-10
Raleigh, NC
kudos:5 | reply to jamepc
Simple answer... reset it back to defaults. And write the address on top of it this time. |
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| reply to LLigetfa
i just tried to ping my broadcast address on a network PC and it came back with a reply from a random network device.
doesnt seem very useful unless i am doing something wrong.
192.168.1.0 /24 is what i have. |
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 billaustinthey call me Mr. BillPremium,MVM
join:2001-10-13
North Las Vegas, NV
kudos:2 | The quick method is to ping the broadcast address and then do an arp -a and see what shows up. Doesn't always work will all devices, but is a quick and easy method to see what is attached to the network. |
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| thanks for the additional information.
i have used the command arp -a before, but does pinging the broadcast address sort of 'wake up' and other hosts to make them pop up in the arp table?
what if i didn't ping the broadcast address at all, would i have seen the same amount of ip addresses in my arp table or is that hard to say?
thanks. |
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| reply to jamepc
i looked up some random belikin routers and it looks like the default IP of the unit is 192.168.2.1
what is the model of the belkin? this page might help you if your model number is on here.
»portforward.com/default_username···lkin.htm |
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billaustinthey call me Mr. BillPremium,MVM
join:2001-10-13
North Las Vegas, NV
kudos:2 | reply to tomdlgns
Pinging the broadcast address will get the device's listing in the arp table refreshed. Try it after a period of little or no activity on the network. Do an arp -a, ping the broadcast address, and then do another arp -a. Depending on the number and type of devices attached, you can see quite a difference. |
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| that was going to be my plan a few hours from now, just to compare the results.
thanks. |
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