Speaking of Standards

Have you ever wanted to understand why SIP doesn’t work so well across NAT devices and firewalls? Have you heard of STUN, TURN or ICE but didn’t know what they were or how they worked? Over on my Blue Box podcast site I’ve just uploaded Blue Box Special Edition #22 which explores and explains all these details. In this interview I sat down with Dr. Jonathan Rosenberg, a Cisco fellow and author of a wide range of RFCs and Internet-Drafts related to SIP to talk about SIP and NAT traversal. We explore what the problem is, how ALGs and SBCs attempt to solve the problem and how the IETF has looked to address the issue through first STUN, then TURN and now finally ICE. I think you’ll find it a very educational and informative session.

On a similar note, you may also be interested in Blue Box Special Edition #20 where I sat down with Cullen Jennings to talk about overall security issues with SIP. These two podcasts together give you a solid overview of the current security issues with SIP.

Technorati Tags: blue box, bluebox, dan york, danyork, ietf, sip, standards, voip security, jonathan rosenberg

Related posts:

1. So what exactly is a “SIP trunk”, anyway? (One definition is proposed…)
2. Can legitimate SIP traffic be mistaken as SPIT? (voice spam)
3. P2P SIP podcast/interview now available for listening…
4. A great overview of SIP security issues from the 3rd ETSI Security Workshop
5. Updated P2PSIP Security Overview Internet-Draft posted

Tags: ICE, IETF, NAT, Security, SIP, Standards

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