Massive Quantities of DNS Queries from Ooma Breaking Network

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Uma User
Posts:1
Joined:Sun Oct 21, 2018 5:07 am
Massive Quantities of DNS Queries from Ooma Breaking Network

Post by Uma User » Sun Oct 21, 2018 5:18 am

I have a Telo 2 which has recently started generating MASSIVE quantities of DNS lookups (as evidenced in ntopng launched from my pfSense router). So many queries are being pushed out of the terminal, my outbound bandwidth is completely consumed - which has the effect of jamming up the entire network.

I've tried a factory reset (Tom's post at viewtopic.php?t=20074) but that didn't change any outcomes.

When I tried my Ooma terminal directly to my ADSL modem (which has two outputs) my home network still crapped out and wasn't restored until I disconnected the Ooma - so I have to believe that DNS flooding was again the culprit.

Wondering if my Ooma has been hacked by a DOS attack although that seems quite unlikely :?

Any suggestions appreciated.

wildfan2k
Posts:2
Joined:Mon Nov 05, 2018 10:19 am

Re: Massive Quantities of DNS Queries from Ooma Breaking Network

Post by wildfan2k » Mon Nov 05, 2018 7:24 pm

Are you using Cloudflare DNS (1.1.1.1) on your router?
That will cause the behavior you're describing.
See this post: viewtopic.php?p=144053#p144053

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