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Re: D/DoS mitigation hardware/software needed.
From: Suresh Ramasubramanian <ops.lists () gmail com>
Date: Tue, 5 Jan 2010 08:43:01 +0530
On Tue, Jan 5, 2010 at 8:36 AM, Jeffrey Lyon <jeffrey.lyon () blacklotus net> wrote:
We have such a configuration in progress, it works great without any of the issues you're proposing.
So .. this is interesting. The firewall would have to frontend your mail / web / whatever application .. and if something goes beyond the firewall's rated capacity (100k ++ - maybe nearly 150..175k connections per second for a high end firewall), the firewall falls over. And even before that, there's the risk of whatever application you're protecting getting pounded flat if your firewall passes even a small percentage of this traffic. Do you - 1. Have (say) two firewalls in HA config? 2. Back your firewall with routing based measures, S/RTBH, blackhole communities your upstream offers, etc [the standard nspsec bootcamp stuff] 3. Simply back the firewall with a netflow based device? 4. Estimate that the risk of a DDoS that exceeds your firewall's rated capacity is extremely low? [and yes, 150k ++ connections per second ddos is going to be massive, and relatively rare for most people] --srs -- Suresh Ramasubramanian (ops.lists () gmail com)
Current thread:
- Re: D/DoS mitigation hardware/software needed., (continued)
- Re: D/DoS mitigation hardware/software needed. Ćukasz Bromirski (Jan 09)
- RE: D/DoS mitigation hardware/software needed. Stefan Fouant (Jan 09)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 09)
- RE: D/DoS mitigation hardware/software needed. Stefan Fouant (Jan 09)
- Re: D/DoS mitigation hardware/software needed. Jeffrey Lyon (Jan 09)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 09)
- Re: D/DoS mitigation hardware/software needed. jim deleskie (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Christopher Morrow (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Bill Blackford (Jan 04)
- Message not available
- Re: D/DoS mitigation hardware/software needed. Jeffrey Lyon (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Suresh Ramasubramanian (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Suresh Ramasubramanian (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Darren Bolding (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Darren Bolding (Jan 05)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 05)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 04)
- Re: D/DoS mitigation hardware/software needed. Darren Bolding (Jan 05)
- Re: D/DoS mitigation hardware/software needed. Dobbins, Roland (Jan 05)
- Re: D/DoS mitigation hardware/software needed. Darren Bolding (Jan 05)