*nods* We have a Metaswitch SBC.
So as long as the pipe isn't full, an SBC is the buffer one needs? If the pipe
is filled, pump it through {insert DDoS mitigation service here}?
-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
Midwest-IX
http://www.midwest-ix.com
----- Original Message -----
From: "Rich A Compton" <[email protected]>
To: "Mike Hammett" <[email protected]>, "NANOG" <[email protected]>
Sent: Tuesday, September 21, 2021 4:59:06 PM
Subject: Re: [EXTERNAL] VoIP Provider DDoSes
Most of the larger DDoS mitigation appliances can block malformed SIP traffic
and also can block volumetric/state exhaustion UDP floods. A lot of VoIP
companies have Session Border Controllers (SBCs) to protect public facing VoIP
services. SBCs are more application aware. Kind of like a proxy based firewall
just for VoIP.
-Rich
From: NANOG <[email protected]> on behalf of
Mike Hammett <[email protected]>
Date: Tuesday, September 21, 2021 at 3:31 PM
To: NANOG list <[email protected]>
Subject: [EXTERNAL] VoIP Provider DDoSes
CAUTION: The e-mail below is from an external source. Please exercise caution
before opening attachments, clicking links, or following guidance.
As many may know, a particular VoIP supplier is suffering a DDoS.
https://twitter.com/voipms
Are your garden variety DDoS mitigation platforms or services equipped to
handle DDoSes of VoIP services? What nuances does one have to be cognizant of?
A WAF doesn't mean much to SIP, IAX2, RTP, etc.
-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
Midwest-IX
http://www.midwest-ix.com The contents of this e-mail message and
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