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On 18/11/2021 08:38, stinga wrote:
G'day all, It may be resolved.... The change of ISP increased our up/down speeds... woot!The DrayTek router had "UDP Flood defense" enabled which is 2000 packets in 10 seconds (it maybe per second which makes more sense, doco is conficting) , if that is exceeded we got dropped for 10 seconds, which is what I was seeing, download stall, download stall.We have increased the value and now seem to be stable and faster! Winner, winner, chick dinner!thanks for the help! -
I'm glad you got it sorted, although I laugh at the feature on the Draytek, "UDP Flood Defense", which is a safeguard against something I alluded to in my DDoS comment in an earlier post is a feature that would be useful on large, edge ISP routers handling many millions of packets a second. To have a feature to safeguard against it on the ingress port of a SOHO broadband router is probably trying to close the stable door after the horse has bolted (the UDP packets have already exhausted your relatively small inbound bandwidth).
As you have a firewall (you mentioned this before), you can disable the "UDP Flood Defense" feature completely, it provides no defense to you, or your downstream clients.
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