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Really slow over IPv6

bradw
Grafter
Posts: 105
Registered: ‎21-05-2013

Really slow over IPv6

Tried downloading http://mirrors.vooservers.com/centos/6.5/isos/x86_64/CentOS-6.5-x86_64-netinstall.iso
I was getting 11KB/s, switched to IPv4 and getting 3.71MB/s
I don't think it's an issue on their end as I get 4+MB/s for that download over IPv6 from a server in France.
2 REPLIES 2
Nibiru
Community Veteran
Posts: 5,797
Thanks: 426
Fixes: 12
Registered: ‎11-08-2007

Re: Really slow over IPv6

I just downloaded that file via my IPv6 Hurricane Electric 6in4 tunnel, and it downloaded at near full line speed.
My connection is 20CN ADSL1 with a full 7.15Mbps profile, and the above iso file downloaded at 6.92Mbps.  Cool
It doesn't get any faster than that on my connection  Roll_eyes
Plusnet FTTC 80/20 IPv4/30, Hurricane Electric 6in4 IPv6/48, Pulse8 landline & calls, SamKnows 600N
Vigor 130 modem, pfSense 2.6.0 router, DrayTek WAPs, Devolo dLAN 500, Gigaset N300A-IP VoIP DECT
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Really slow over IPv6

Very strange behaviour:
Quote
--2014-05-07 18:23:24--  http://mirrors.vooservers.com/centos/6.5/os/i386/Packages/kdegames-4.3.4-5.el6.i686.rpm
Resolving mirrors.vooservers.com... 2a00:1c10:3:634::1000:0:1
Connecting to mirrors.vooservers.com|2a00:1c10:3:634::1000:0:1|:80... connected.
9.95KB/s  eta 68m 43s

Quote
--2014-05-07 18:23:30--  http://mirrors.vooservers.com/centos/6.5/os/i386/Packages/kdegames-4.3.4-5.el6.i686.rpm
Resolving mirrors.vooservers.com... 2a00:1c10:3:634::1000:0:1
Connecting to mirrors.vooservers.com|2a00:1c10:3:634::1000:0:1|:80... connected.
9,015,152  10.7MB/s