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IP conflict everywhere
19 years 4 months ago #9095
by ping
The greatest pleasure in life is doing what people say you can not do..!!
IP conflict everywhere was created by ping
Hi,
I have been getting unusual problems in my network ... In a specific range of IP, everyone gets IP CONFLICT ... Not just me, it is random ... Everyone complains that they get conflict ... Anyone has any comments? .
There was a Virus MyTob in our network and it was cleaned ... Will it be a malfunctioning switch ? .. When I check the eventlog for th Mac address of the conflicted PC , i just get 00-00-00-00-00 only ...
1. No dual DHCP issue
2. No loop
I have been getting unusual problems in my network ... In a specific range of IP, everyone gets IP CONFLICT ... Not just me, it is random ... Everyone complains that they get conflict ... Anyone has any comments? .
There was a Virus MyTob in our network and it was cleaned ... Will it be a malfunctioning switch ? .. When I check the eventlog for th Mac address of the conflicted PC , i just get 00-00-00-00-00 only ...
1. No dual DHCP issue
2. No loop
The greatest pleasure in life is doing what people say you can not do..!!
19 years 4 months ago #9101
by nske
Replied by nske on topic Re: IP conflict everywhere
I find it very unlikely to be a switch mailfunction. More likely, it is a windows mailfunction caused by some malware
Here's some suggestions:
- In each machine use regedit to go to [code:1]HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}[/code:1]
Inside there should be a number of numbered subkeys, one of these should contain the settings for the ethernet adapter you use. Check if there is an entry called "NetworkAddress" inside there and if there is, delete it. Or use MacMakeup instead.
- Try to isolate each machine from the network, to find which is the guilty (if it's only one). Also try connecting two pcs that have this problem, directly with each other.
- Check for any suspicious traffic with a sniffer. Also check for running processes, in case some malware is still active.
- You may be able to reduce future problems like this by tightening the privileges of the account used during every-day use.
Here's some suggestions:
- In each machine use regedit to go to [code:1]HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}[/code:1]
Inside there should be a number of numbered subkeys, one of these should contain the settings for the ethernet adapter you use. Check if there is an entry called "NetworkAddress" inside there and if there is, delete it. Or use MacMakeup instead.
- Try to isolate each machine from the network, to find which is the guilty (if it's only one). Also try connecting two pcs that have this problem, directly with each other.
- Check for any suspicious traffic with a sniffer. Also check for running processes, in case some malware is still active.
- You may be able to reduce future problems like this by tightening the privileges of the account used during every-day use.
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