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Re: [Sheflug] OT Router problem

To: richard@xxxxxxxxxxxxxx, sheflug@xxxxxxxxxxxxxx
Subject: Re: [Sheflug] OT Router problem
From: Steve Fisher <xirconuk@xxxxxxxxx>
Date: Wed, 21 Jul 2010 21:49:11 +0100
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On 21 July 2010 21:38, Richard Ibbotson <richard@xxxxxxxxxxxxxx> wrote:

> On Wednesday 21 July 2010 17:00:41 Douglas G Mckendrick wrote:
> > 07/21/2010  15:54:25 **UDP Flood to Host** 86.27.30.174, 32768->>
> > 194.168.8.100, 53 (from ATM1 Outbound)
> > 07/21/2010  15:54:25 **UDP Flood to Host** 86.27.30.174, 32768->>
> > 194.168.4.100, 53 (from ATM1 Outbound)
>
> Hmm... bit weird.  Port 53 = DNS. Flood = lot of it.  Might be a DNS
> loop. Not quite sure what kind of bug or fault could cause that.
> Anyone else ?
>
> Looks a bit like it can't get a reply back from the DNS server on the
> net.
>
> --
> Richard
>

So thats a Virgin Media address?, sounds like a UDP DoS attack
http://en.wikipedia.org/wiki/UDP_flood_attack
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Follow-Ups:
- Re: [Sheflug] OT Router problem
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References:
- [Sheflug] OT Router problem
  - From: Douglas G Mckendrick
- Re: [Sheflug] OT Router problem
  - From: Richard Ibbotson

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