[ipv6-ops] Re: So why is "IPv4 with longer addresses" a problem anyway?

[Aaron Hughes]

Doug,

- Survivability
- End to end reachability
- Guaranteed uniqueness
- Some added security (everyone will be forced to address security without NAT in place)
- IPv4 space will become very expensive post RIR exhaustion.
- IPv6 allows for longer term architecture (allocations and assignment) planning.
- Filtering is easier
- Regional aggregation is easier
- TE (Traffic Engineering) is easier
- You will likely never haver to go back to your provider or registry for more IP resources.
- Today, IPv6 transit is free -> $inexpensive
- When the day comes (first IPv6 only reachable content/eyeballs come online, you will reach them.
- Client / eyeball / content analysis gives more accurate data
- From the end user perspective, real IP addresses for all objects. (no more pay for or small subs)

While this is a list of perfectly justifiable reasons, the key factor to selling this to your clients is survivability. This will cost money, it will take time, it will cause problems while migrating, but must be done. We don't run IPX/SPX, AppleTalk, thin net, X.25, Windows 3.1(tcpman.exe), etc anymore because the technology is no longer good enough. IPv4 is no longer good enough for us either as the resource will simply run out. This run-out has many significant impacts to our costs, routing infrastructure, tracking abilities, etc and will have to be addressed (pardon the pun) sooner or later. The later we embrace, the more it costs us over the long term.

Hope this is helpful.

Cheers,
Aaron




On Wed, May 26, 2010 at 07:31:08PM +0100, Andy Davidson wrote:
> 
> On 24 May 2010, at 20:50, Doug Barton wrote:
> 
> > So my question is, other than longer addresses, what are the benefits to IPv6 that I can point clients to which will help them justify the expense of the upgrade?
> 
> For me, it's that one day, we'll get to bin the v4 swamp.
> 
> Andy
> 
> 

-- 

Aaron Hughes 
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