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Chasing A Trouble Maker On The Net
Posted by CHEAP CAR INSURANCE
on
10:50 PM
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Internet
Here's a quick guide on how to locate and eliminate a particular problem.
Maybe you again in command of a medium to large network and one day may come when the hell can free themselves as employees can not access the internet.
You, as network administrator or as a coach first check the DSL line and modem, and probably will not find anything wrong with it. You connect a laptop directly to a router or switch after the modem and DSL are able to surf the internet.
So you suspect a faulty switch or router in the middle and go to one of the problems reported computer and see if you can ping a local site and get no response. You check the assigned IP address and DNS server addresses bozo notice, and suddenly a light comes into your head:
There is another DHCP server on the same network!
The experience taught me that once in a while a team has the bright idea to extend their Internet access to your smart phone and buy a WiFi access point or router and plug it on the Internet. The unit is preconfigured as a DHCP server and distributes the IP addresses on the same network, and suddenly you have two networks bosses : in the net and chances are high that computers nearer take your wireless router IP address.
And so begins the chase:
1. Observe the proper network settings for your internet line. You usually get it by running ipconfig / all at a command prompt.
2. Unplug your DSL modem and router in our network and startup of a computer connected to the network and note which was recently assigned network settings.
3. Set a fixed IP address on your computer on the same subnet and open a command prompt and ping the gateway constant ping 192.168.1.1-t fx
4. Start by turning off parts of their network and see if the ping times out. You know, that the branch was disconnected hidden DHCP server.
5. Follow this business the same way as above - and sooner or later you will find the culprit.
Tip: Typically, these wireless routers have a web interface for configuration and a way to check the make or model of box you 're looking for is to open a browser and type the default gateway address and press enter. He will open the logon screen so that the box with the model name.
You can google for the model name and get a picture. This gives you an image that you can hang in all the warning signs with the text: Wanted $ 1000 - OK - maybe you need not go that far!
Make it a policy that nobody cares gadget on your network without your consent.
Maybe you again in command of a medium to large network and one day may come when the hell can free themselves as employees can not access the internet.
You, as network administrator or as a coach first check the DSL line and modem, and probably will not find anything wrong with it. You connect a laptop directly to a router or switch after the modem and DSL are able to surf the internet.
So you suspect a faulty switch or router in the middle and go to one of the problems reported computer and see if you can ping a local site and get no response. You check the assigned IP address and DNS server addresses bozo notice, and suddenly a light comes into your head:
There is another DHCP server on the same network!
The experience taught me that once in a while a team has the bright idea to extend their Internet access to your smart phone and buy a WiFi access point or router and plug it on the Internet. The unit is preconfigured as a DHCP server and distributes the IP addresses on the same network, and suddenly you have two networks bosses : in the net and chances are high that computers nearer take your wireless router IP address.
And so begins the chase:
1. Observe the proper network settings for your internet line. You usually get it by running ipconfig / all at a command prompt.
2. Unplug your DSL modem and router in our network and startup of a computer connected to the network and note which was recently assigned network settings.
3. Set a fixed IP address on your computer on the same subnet and open a command prompt and ping the gateway constant ping 192.168.1.1-t fx
4. Start by turning off parts of their network and see if the ping times out. You know, that the branch was disconnected hidden DHCP server.
5. Follow this business the same way as above - and sooner or later you will find the culprit.
Tip: Typically, these wireless routers have a web interface for configuration and a way to check the make or model of box you 're looking for is to open a browser and type the default gateway address and press enter. He will open the logon screen so that the box with the model name.
You can google for the model name and get a picture. This gives you an image that you can hang in all the warning signs with the text: Wanted $ 1000 - OK - maybe you need not go that far!
Make it a policy that nobody cares gadget on your network without your consent.
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