D&C GLug - Home Page

[ Date Index ] [ Thread Index ] [ <= Previous by date / thread ] [ Next by date / thread => ]

Re: [LUG] Miredo ipv6

 

On Sun, 22 Jan 2012, Kai Hendry wrote:

ping6, ahh. Great.

Managed to connect to my sshd and the address
2001:0:53aa:64c:2c08:646f:9160:ace from my Bitfolk VPS :)

Was bloody slow though. But then we are doing round trips to UK from Malaysia.
'mtr' recognises IPv6 addresses (and mrt-tiny is the command-line package)

e.g.

$ mtr -r ipv6.google.com
HOST: dsr                         Loss%   Snt   Last   Avg  Best  Wrst StDev
  1. ge-1-3-0-32.shef1.ipv6.as855  0.0%    10    0.6   4.4   0.6  38.8  12.1
  2. so-1-1-1-0.lon1.ipv6.as8553.  0.0%    10    6.9   7.0   6.9   7.3   0.1
  3. ge-1-3-0-16.lon2.ipv6.as8553  0.0%    10    7.4   7.2   7.1   7.4   0.1
  4. ge-6-5-433.car1.London1.Leve  0.0%    10    7.4   9.6   7.3  23.5   5.2
  5. vl-4081.edge4.London1.Level3  0.0%    10    7.5   7.5   7.4   7.7   0.1
  6. 2001:1900:5:2:2::2f2          0.0%    10   37.5  10.6   7.5  37.5   9.5
  7. 2001:4860::1:0:15f            0.0%    10    7.8  10.3   7.7  32.0   7.6
  8. 2001:4860::8:0:2ddf           0.0%    10    7.9   8.0   7.9   8.3   0.1
  9. 2001:4860::8:0:2ac4           0.0%    10   13.7  13.7  13.6  13.9   0.1
 10. 2001:4860::2:0:87d            0.0%    10   13.8  13.9  13.7  14.2   0.2
 11. 2001:4860:0:1::233            0.0%    10   21.3  18.0  13.8  25.7   4.2
 12. bru01m01-in-x63.1e100.net     0.0%    10   13.8  13.8  13.6  14.2   0.2

I wonder where the tunnel endpoint is I connected to...
http://sprunge.us/CSSW
The first IP in that traceroute: 2001:470:0:17b::2 belongs to hurricane 
electric, or http://he.net/ - they're operating a big IPv6 infrastructure 
and support http://tunnelbroker.net/
So can I get a static ipv6 using this miredo method? I guess from the
way tunnels are brokered, no?
I've no idea - I've not tried that miredo package.

You can get static IPv6 from various other places though - e.g. http://www.sixxs.net/ and http://tunnelbroker.net/
Alternatively, since you have some IPv6 already from Bitfolk, you could 
setup your own tunnel to them and route via their network. (not sure if 
they allow that sort of thing though, but I suspect for small volumes of 
traffic it's not going to be an issue)
Although IPv6 has been avalable for some 10 years now, peering is still 
nowhere near as complete as IPv4 land is. E.g. I trace from my home/office 
line (Entanet) to my co-lo in Sheffield and it goes via Paris )-:
If I can't get a static ipv6, I guess I need to cool for dynamic
client for ipv6 in order to make those addresses easier to consume.

Still not being able to get a static ipv6 sounds kinda sucky.
Bear in-mind that no-one really "owns"  IP addresses. RIPE will not 
allocate provider independant IPv6 addresses to people who don't already 
run a network - and even if you or me could get our own private IPv6 
range, then what do we do when we move - will the ISP we plumb into 
actually be able to route it? In theory, if they were willing and we could 
talk BGP to them then it's technically possible, but in-practice it's 
never, ever going to happen. (And this is no-different to the IPv4 world)
And this is already proving to be a pain for at least one companies I work 
with - e.g. we want to be IPv6 internally (and are), but then of the 2 (or 
3) ISPs we use for external connectivity, while each one will give us an 
IPv6 range, none will route traffic coming from another ISP! So the 
current situation is to look at doing 1:1 NAT at the IPv6 level - using a 
private IPv6 range internally to map to the range given by the ISPs. 
Totally bonkers.
It's possible at a bigger level - e.g. corporate company with 1000 staff 
(say) who can then afford the resources to set it it all up, but for the 
SME who just wants robust Internet (so 2 or more providers) it's virtually 
impossible.
So the only practical way for you to have a globally roaming static IPv6 
address is to use a static address from miredo or another broker, or one 
you have in a data centre (or home/office ISP) and tunnel from your 
current location to the end-point.
This is exactly the same as running a VPN in IPv4 land. Tunnel/VPN - 
what's the difference? (at this sort of level anyway)
I currently have a rather interesting setup where I'm routing a static 
IPv4 address over a pair of 3G modems (on differenet networks)  to a train 
running up and down the country - if that's not mobile, then what is :)
Gordon

--
The Mailing List for the Devon & Cornwall LUG
http://mailman.dclug.org.uk/listinfo/list
FAQ: http://www.dcglug.org.uk/listfaq