Re: FreeBSD DDoS protection

It does but possibly beneficial in some scenarios. I completely agree with keeping everything standard and not doing things that make other things either unpredictable or more difficult. 

That's why I run MX80's instead of BSD-based edge gear any longer. Again, simply trying to help the OP with his current equipment and basic needs to resolve his present issue.




On Feb 12, 2013, at 11:46 AM, "Fleuriot Damien" <[email protected]> wrote:

> 
> On Feb 12, 2013, at 6:34 PM, [email protected] wrote:
> 
>> As my response stated filter ICMP except where necessary. I can state coming from a mitigation background that there are ways to safely do it without causing any issues. However, yes, you can still filter ICMP and remain compliant with an example pf rule like:
>> icmp_types = "{ echoreq, unreach }"
> 
> breaks traceroute :(
> 
> 
> 
>> But in real life situations under constant attacks, blocking ICMP can be a large part of keeping businesses online.
> 
> YMMV but I'd advise rate limiting instead of plain blocking.
> 
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