ipv6 transit over tunneled connection

Owen DeLong owen at delong.com
Fri May 14 17:58:06 CDT 2010


On May 14, 2010, at 1:36 PM, Jared Mauch wrote:

> 
> On May 14, 2010, at 3:43 PM, Brielle Bruns wrote:
> 
>> (Sent from my Blackberry, please avoid the flames as I can't do inline quoting)
>> 
>> 
>> Native IPv6 is a crapshoot.  About the only people in the US that I've seen that are no-bullshit IPv6 native ready is Hurricane Electric. NTT is supposedly as well but I can't speak as to where they have connectivity.
> 
> I can say that we (NTT) have been IPv6 enabled or ready at all customer ports since ~2003.  Anyone else who has not gotten there in the intervening years may have problems supporting you for your IPv4 as well :)
> 
True.

>> Being that there's issues that leave us unable to get native connectivity, we have a BGP tunnel thanks to HE (with a 20ms latency from Seattle to Freemont).
> 
> You should be able to get native IPv6 in Seattle from a variety of providers.  If you're not finding it, you're not really looking (IMHO).
> 
Depends.  If he's in the Westin or some other colo, sure.  If not, he may have last-mile expenses that exceed sanity for his situation leading to a tunneled solution.

>> Tunnels suck if not done correctly.  We sometimes have faster and more reliable connections through IPv6, so ymmv.
> 
> The tunneled part of the "IPv6" internet fell to the wayside a long time ago, there are stragglers and I have even seen people try to peer over tunnels in 2010, but anyone still adding that level of overlay (v6-over-v4) may find themselves in a world of hurt soon enough.
> 
I have to disagree with you here. Given the proportion of the IPv6 internet that is still connected via tunnels, your statement simply doesn't really hold.

I will readily agree that where possible, native connections beat tunnels. However, tunnels can be a cost effective alternative where native connectivity is not yet readily available and they still work quite well if properly configured and structured.

Owen





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