Virus Flood Troubleshooting in LAN

[ajay chauhan]

Hi Guys,

I have some virus problem in my network can you pls guide me step by step how to find out which node is virus infected.

[Anand Narayana]

Hi Ajay,

infact i had a network virus which badly affected my network making the network 99% freeze. honestly telling, i identified with one the port which was blinking very fast & that made to suspect the pc which was connected on to that port, later when i removed that pc from the network, my network was back to normal.

so you have a physical check of the port blincking the switches. my network was affected with a network virus.

[ajay chauhan]

Hi,

Well this can solve ur problem ...when u r able to see ur swith ..from remote how can we troubleshoot.

[Anand Narayana]

You can check with the broadcast keep increased drastically in the interfaces.

[glen.grant]

Turn on netflow on your layer 3 device and start looking for a one device going to many unknown addresses .