[LINK] There goes the neighbourhood...

Kim Holburn kim at holburn.net
Wed May 11 18:51:57 AEST 2011


On 2011/May/11, at 8:41 AM, Karl Auer wrote:

> On Tue, 2011-05-10 at 23:59 +0930, Brenda Aynsley wrote:
>> On 10/05/11 21:55, Kim Holburn wrote:
>>>> Microsoft has bought Skype for $8.5 billion, in an all cash deal.
>> 
>> ok folks, for those of us who might now take the opportunity to 
>> investigate options what are our alternatives?  Google talk? others?
> 
> Well, with the advent of IPv6 and the restoration of end-to-end
> transparency in the global Internet, how about SIP?

You know I really worry about this.  I can't say I really understand as much about IPv6 as I'd like but I worry with all the concern about tracing IP connections and preserving anonymity that IPv6 will make that much harder for people, especially normal home users.

> Skype's only real claim to fame was the mechanism they used to punch
> through NAT; the rest of it is relatively straightforward (though of
> course they patented a few codecs just to be annoying).

The main reason NAT is a problem for VOIP/SIP/H323 is that they put IP addresses in the data.  If they relied on IP headers like every sensible protocol designer it would never have been an issue.  You wouldn't need STUN servers or anything else.  Just the packets.  The other fault is that they splatter udp connections with lots of ports.  Not necessary.


-- 
Kim Holburn
IT Network & Security Consultant
T: +61 2 61402408  M: +61 404072753
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