On Sun, Mar 23, 2014 at 3:43 AM, Justin M. Streiner <streiner@cluebyfour.org
wrote:
On Mon, 23 Mar 2015, Ca By wrote:
Having your upstream apply a permanent udp bw policer, say 5 or 10x busy
hour baseline, works well for this.
Many upstreams will not do that, particularly on a permanent basis. They might do something temporarily to deal with an incident, but many of the bigger carriers probably wouldn't want to leave that in place permanently.
jms
Mine Tier 1 up-streams are fine with it permanent. YMMV. I did have to get my account team involved, but from a technical perspective, a one line policer (all UDP rate-limit to 10% of link speed) is not a technical challenge, and the one-off config element is not overly burdensome. Again, YMMV. And, your frequency and impact of IPv4 UDP based attacks will dictate your needs. CB