nanog mailing list archives

Re: DDOS solution recommendation


From: "Roland Dobbins" <rdobbins () arbor net>
Date: Sun, 11 Jan 2015 21:58:12 +0700


On 11 Jan 2015, at 20:52, Ca By wrote:

1. BCP38 protects your neighbor, do it.

It's to protect yourself, as well. You should do it all the way down to the transit customer aggregation edge, all the way down to the IDC access layer, etc.

2.  Protect yourself by having your upstream police Police UDP to some
baseline you are comfortable with.

This will come back to haunt you, when the programmatically-generated attack traffic 'crowds out' the legitimate traffic and everything breaks.

You can only really do this for ntp.

3.  Have RTBH ready for some special case.

S/RTBH and/or flowspec are better (S/RTBH does D/RTBH, too).

-----------------------------------
Roland Dobbins <rdobbins () arbor net>


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