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troubleshooting Question

How to use tcp dum feature on SonicWall firewall to track/catch botnet

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bobox00Flag for United States of America asked on
SecurityHardware FirewallsAnti-Spyware
6 Comments1 Solution2101 ViewsLast Modified:
opendns.com says that there's a malware/botnet activity detected on my network. I understand that I can use the tcp dump feature on my firewall to find out which device is involved in this botnet activity. Please give me ideas on how to track down this device. I have an NSA 3500 firewall.
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