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Can I ask you what is your internet speed? If you want also post a speedtest (using speedtest.net) thanks.
Advertised as 32/2 IIRC, speedtest results in 31.79/1.99/11ms
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Post your trace will you? Mine shows two class A IPs as well, just before "reaching" the DDoS protection, my ping times are significantly better though. See redsn0ws post above, they also have similar IPs 10.10.48.5 and 10.10.68.11
traceroute to bitcointalk.org (186.2.165.183), 30 hops max, 60 byte packets
3 83-169-183-73-isp.superkabel.de (83.169.183.73) 16.311 ms 24.876 ms 26.022 ms
4 ip5886c9ad.dynamic.kabel-deutschland.de (88.134.201.173) 26.888 ms 27.741 ms 28.585 ms
These IPs do not show when I use an VPN (university line).
What is the point? I don't have routing problems. I always have at least 2 ISP available when at home, and all of them properly filter
http://en.wikipedia.org/wiki/Martian_packet . Is "Superkabel" a reseller of "Kabel-Deutschland"?
Just for comparisson I have no problems to reach the board either. My network breaks down completely sometimes though.
Kabel Deutschland writes the bills, but I would not be surprised if the regional network is handled by a subcontractor. Its essentially the worst ISP germany has to offer, well besides our last one "Hansenet" which was bought and sold by more companies that I care to remember each creating more problems.
That setup looks like a typical reseller agreement where the reseller has no technical knowledge to maintain their network, only to do the billing. Perhaps you should ask you ISP why they don't filter martians? Your uni seems to have competent network engineers.
I am not surprised by that assesment, but Im afraid I dont have the two days it would take to get someone that even understands the questions (including those from your Edit2) on the line. We have plans to switch to a different ISP, but that will take time due to the contract.
Edit: The only thing of that may be of interest is that from my Eastern European ISP I see a hop to the Western Europe via
bundle-ether9.ffttr4.FrankfurtAmMain.opentransit.net (193.251.255.201)
before reaching ddos-guard.net which seems to be located in Russia.
Edit2: Since more people posted the traceroutes with 10/8 subnet, I think it may be worthwhile to ask their ISP if they distinguish between bogons and martians (
http://en.wikipedia.org/wiki/Bogon_filtering &
http://en.wikipedia.org/wiki/Martian_packet) and why don't they use RPF (
http://en.wikipedia.org/wiki/Reverse_path_forwarding). theymos should probably also ask ddos-guard.net what is going on. I have no way of testing that because all the ISPs I have access to properly filter martians and my access to the internal ISP traffic engineering tools is very limited.
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Shorena is telling that he and redsn0w is getting non-routable IPs like me. I will look the wiki articles you gave. Thank you!
Can you post your traceroute? That will be helpful.
Apparently they checked their route and found nothing curious, besides a hop into western europe. I can do some routes via other ISPs over the next days and see if I find anything, but it probably boils down to: we have shitty ISPs.