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NetFlow Or sFlow For Fastest DDoS Detection?
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theb0x
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theb0x,
User Rank: Ninja
1/26/2016 | 1:00:57 PM
NetFlow vs SFlow
My experience with either NetFlow or SFlow has been extremely poor with all the Sonicwall NSA series firewalls. Even the highest model such as the NSA 6600, the statistical data gathered is completely inaccurate in terms of internal or external bandwidth consumption. It is not possible to correct the issue due to lack of complete protocol support in the firmware Dell provides. Sonicwall uses incorrect active timeout packets. Even adjusting this timeout does not correct the issue. This applies to both NetFlow v5 and v9. This is because Sonicwall uses different Netflow9-packets which do not fully comply with the standard of Cisco Netflow 9 packets (for which all sensors are developed for). If you or anyone is looking for a reliable enterprise grade firewall that supports NetFlow or Sflow functionallity, do not use Sonicwall. At just under $20,000 dollars for a Sonicwall NSA 6600...lack of NetFlow support makes it complete garbage.
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