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charlesed

join:2011-06-28
Minneapolis, MN
reply to NetDog

Re: [IPv6] Evidence of Comcast IPv6 CPE Dual Stack (CPE and CPEP

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Crystal, MN
pfSense 2.1-RC1 (i386, built on Wed Aug 28 16:55:02 EDT 2013)

djoye

join:2009-08-15
Murfreesboro, TN
reply to NetDog
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Nashville
5341j
Netgear WNDR4300


Chris 313
Come get some
Premium
join:2004-07-18
Houma, LA
kudos:1
Reviews:
·AT&T U-Verse
·Vonage
·Comcast
·Comcast Digital ..

2 recommendations

reply to NetDog
Houma, La
Motorola SB6141
Asus RT-N66U
Windows XP SP3

From »test-ipv6.com/ -

Your IPv4 address on the public Internet appears to be 75
(COMCAST-22258 - Comcast Cable Communications Holdings, Inc)

Your IPv6 address on the public Internet appears to be 2601
(COMCAST-7922 - Comcast Cable Communications, Inc.)

Since you have IPv6, we are including a tab that shows how well you can reach other IPv6 sites. [more info]

Good news! Your current configuration will continue to work as web sites enable IPv6.

Rediness score: 10/10

Keep up with the good upgrades, NetDog. Your IPv6 upgrades have spread to Louisiana and the Cisco 10k CMTSs that we have here!

Trips

join:2002-06-14
Augusta, GA

2 edits
reply to NetDog
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Augusta, GA
Arris CM820A
Linksys E4200v2
Windows 7 Ultimate 64-bit

willmo

join:2013-06-03
Seattle, WA

1 recommendation

reply to willmo
Working now, everything's 10/10. Thanks guys! This is about as good as it gets for residential ISP support.

willmo

join:2013-06-03
Seattle, WA
reply to netcool
Now packets from my LAN aren't even making it to hop 3 in the traceroute I posted. PMs sent.

I did have an issue a couple times where OpenWRT's new DHCPv6 client (odhcp6c) freaked out and started sending packets out the WAN interface as fast as it could (many thousands per second), using 100% CPU. This happened once a couple months ago and again a few days ago, which was why I decided to update OpenWRT Tuesday night. I didn't really have a chance to investigate since at the time I just needed my router to stop being slow (killing the process fixed it). I'd been wondering if that would cause me to be IPv6-blacklisted or something. But hopefully since IPv6 wasn't enabled then (at least the first time) the packets never made it to the DOCSIS side of my modem...


netcool
Premium,VIP
join:2008-11-05
Englewood, CO
kudos:114
reply to willmo
said by willmo:

Clearly packets from my LAN *are* making it out of my router into Comcast's network (the 2001:558 addresses), but Comcast is not routing packets to and/or from my LAN.

Can you run your tests again? Your CMTS wasn't properly advertising its IPV6 routes, we corrected the config and you should be good now.


NetDog
Premium,VIP
join:2002-03-04
Parker, CO
kudos:81
reply to willmo
said by willmo:

Seattle, WA (Capitol Hill)
SB6121
Netgear WNDR3700v1
OpenWRT trunk r37767 (I build it from source myself)
Performance

Your CMTS is enabled for IPv6 CPE, I just checked send me your CM MAC please so I can check your modem.
--
Comcaster.. Network Engineer with NETO

willmo

join:2013-06-03
Seattle, WA
reply to willmo
Actually it appears that my router is working, and Comcast just hasn't finished enabling IPv6 here yet.

My router itself has full IPv6 connectivity, but machines on my LAN can't reach the Internet. At first I assumed my router wasn't routing, but traceroute6 says otherwise. On the router:

# traceroute6 ipv6.test-ipv6.com
traceroute to ipv6.test-ipv6.com (2001:470:1:18::119), 30 hops max, 16 byte packets
 1  2001:558:600a:63::1 (2001:558:600a:63::1)  7.467 ms  7.149 ms  19.396 ms
 2  2001:558:a2:2037::1 (2001:558:a2:2037::1)  8.975 ms  9.811 ms  10.053 ms
 3  ae-20-0-ar03.seattle.wa.seattle.comcast.net (2001:558:a0:212::1)  10.455 ms  9.788 ms  9.513 ms
 4  he-1-7-0-0-11-cr01.seattle.wa.ibone.comcast.net (2001:558:0:f741::1)  10.425 ms  9.843 ms  11.317 ms
 5  if-xe-0-3-1.0.tcore1.00S-Seattle.ipv6.as6453.net (2001:5a0:1f00:200::d)  9.157 ms  7.804 ms  10.116 ms
 6  if-ae14.2.tcore1.PDI-PaloAlto.ipv6.as6453.net (2001:5a0:200:400::e)  36.608 ms  32.630 ms  30.402 ms
 7  if-ae2.2.tcore2.PDI-PaloAlto.ipv6.as6453.net (2001:5a0:1200:300::2)  27.083 ms  25.687 ms  27.414 ms
 8  if-ae5.2.tcore2.SQN-SanJose.ipv6.as6453.net (2001:5a0:1500:500::1)  48.423 ms  54.270 ms  36.242 ms
 9  gigabitethernet5-16.core1.sjc2.he.net (2001:470:0:196::1)  38.951 ms  38.941 ms  36.617 ms
10  10gigabitethernet1-1.core1.fmt1.he.net (2001:470:0:2f::1)  37.464 ms  36.564 ms  40.913 ms
11  ip119.gigo.com (2001:470:1:18::119)  37.621 ms  44.905 ms  39.549 ms
 

On a machine on my LAN:

$ traceroute6 ipv6.test-ipv6.com
traceroute6 to ipv6.test-ipv6.com (2001:470:1:18::119) from 2601:8:b1xx:xxxx:xxxx:xxxx:xxxx:xxxx, 64 hops max, 12 byte packets
 1  2601:8:b1xx:xxxx::1  1.131 ms  3.477 ms  1.396 ms
 2  2001:558:4082:63::1  9.603 ms  12.047 ms  10.439 ms
 3  2001:558:a2:2034::1  18.784 ms  17.231 ms  16.693 ms
[wait a while]
^C
 

Clearly packets from my LAN *are* making it out of my router into Comcast's network (the 2001:558 addresses), but Comcast is not routing packets to and/or from my LAN.

It's interesting how they do this in stages: last night my router wasn't getting any DHCPv6 responses, but it was spewing messages about being unable to reach several addresses in 2001:558:4082:63::/64. I assume it was receiving ICMPv6 packets and trying to respond, but couldn't because it didn't have an IPv6 address (?).

Oh well, I'm patient. :-)

Seattle, WA (Capitol Hill)
SB6121
Netgear WNDR3700v1
OpenWRT trunk r37767 (I build it from source myself)
Performance

willmo

join:2013-06-03
Seattle, WA
reply to NetDog
Looks like they're in the midst of enabling it here. comcast6.net says my CMTS is supported. test-ipv6.com says I have nothing, but machines on my LAN have an IP...or several...

en0: flags=8863 mtu 1500
ether 20:c9:xx:xx:xx:xx
inet6 fe80::xxxx:xxxx:xxxx:xxxx%en0 prefixlen 64 scopeid 0x4
inet6 2601:8:b1xx:xxxx:xxxx:xxxx:xxxx:xxxx prefixlen 64 autoconf
inet6 2601:8:b1xx:xxxx:xxxx:xxxx:xxxx:xxxx prefixlen 64 autoconf temporary
inet6 fd9f:xxxx:xxxx::xxxx:xxxx:xxxx:xxxx prefixlen 64 deprecated autoconf
inet6 2601:8:b1xx:xxxx::xxx prefixlen 64
inet 192.168.1.x netmask 0xffffff00 broadcast 192.168.1.255
media: autoselect
status: active


Very possible that my router is misconfigured or buggy (OpenWRT trunk from last night, with some old config files that probably need to be updated). I'm looking into it.

Madtown
Premium
join:2008-04-26
Madera, CA
Reviews:
·Comcast
reply to NetDog
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Madera, Ca (Parkwood)

SB6121

Netgear WNDR3700

Performance
Expand your moderator at work


PaulGo

join:2005-01-29
Gaithersburg, MD
reply to Oregonian

Re: [IPv6] Evidence of Comcast IPv6 CPE Dual Stack (CPE and CPEP

Congratulations! You appear to have both IPv4 and IPv6 internet working. If a publisher publishes to IPv6, your browser will connect using IPv6. Your browser prefers IPv6 over IPv4 when given the choice (this is the expected outcome).

Your DNS server (possibly run by your ISP) appears to have IPv6 internet access.
Your Readiness Scores
10/10 Important Measure: Your IPv4 stability, when sites offer both IPv4 and IPv6
10/10 Long-Term: Your IPv6 readiness when sites go IPv6-only - NOT CRITICAL right now

North Potomac, MD
Netgear R6300 router
Motorola SB6141 modem


Oregonian
Premium
join:2000-12-21
West Linn, OR
Reviews:
·Comcast
reply to NetDog
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West Linn, Oregon
SB6120 modem and a Linksys EA4500 router.

grod46

join:2012-11-25
Firebaugh, CA
Reviews:
·Comcast
reply to NetDog
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comcast6.net
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HTC One
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Nexus 7
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t
1:Firebaugh,Ca
2:SMCD3GNV (Bridged) to a D-LINK DIR-615

earletp

join:2004-02-03
PDX
reply to NetDog
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Portland, Oregon
Motorola SB6120 to a Netgear WNDR4500


Scilicet
Spaced Out
Premium
join:2005-04-11
Aurora, CO
kudos:1
Reviews:
·Vonage

1 edit
reply to NetDog
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1. Aurora, CO
2. Modem: Motorola SB6120
3. Neatgear WGR614v10 (not yet configured)

I hadn't noticed this until today. The modem has been at IPv4 for I don't know how long. I've been troubleshooting a network problem and the IPv6 popped up on the modem status page.

Edit: It would seem that the Netgear WGR614v10 does not support IPv6. Wonderful!
--
Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality. ~ Nikola Tesla


bradyr
Columbia College IT
Premium
join:2008-10-27
Sonora, CA
reply to NetDog

IPv6 Connection Type: Native with DHCP-PD
WAN IPv6 Address: 2001:558:6012:38:4c81:eba6:7420:3b8a/64
WAN IPv6 Gateway: fe80::201:5cff:fe3d:ac41
LAN IPv6 Address: 2601:c:9c80:7b:62a4:4cff:fe29:6cb8/64
LAN IPv6 Link-Local Address: fe80::62a4:4cff:fe29:6cb8/64
DHCP-PD: Enabled
LAN IPv6 prefix: 2601:c:9c80:7b::/64
DNS Address: 2001:558:feed::1 2001:558:feed::2



lit up IPv6 for a day and a half just for because. Everything seems ready to rock and roll. Might turn it on permanently once I get some proper IPv6 firewall rules setup.

-Sonora, CA (95370)
-Zoom 5341J
-ASUS rt-n66u running latest Merlin firmware (3.0.0.4.372.30_2 at the time of this post)

ViRGEdx

join:2002-10-25
reply to NetDog
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1. Salem, OR
2. Modem: Motorola SB6121
3. Linksys E3000, Running Tomato USB (Toastman, latest)


Coelispex

join:2013-06-03
Wilmette, IL
Reviews:
·Comcast
reply to NetDog



1. Wilmette, IL (60091)
2. Modem: Motorola SurfBoard SB6141
3. Linksys EA2700 N600 Dual-Band Wireless-N Router

JNhome

join:2012-07-15
Salinas, CA
reply to NetDog
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Went live in Salinas, CA (70mi south of San Jose) in June 2013

CplEstesUSMC

join:2005-02-16
Douglasville, GA
reply to NetDog
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Winston Georgia
ASUS RT-N66U - Firmware 3.0.0.4.370_172-g85af9d0
I never got IPv6 address until my firmware was updated

bgoodbody
Bill G

join:2002-05-08
North Truro, MA

1 recommendation

reply to NetDog
The Cisco CMTS has begun.
»www.comcast6.net/
--
- Bill


pende_tim
Premium
join:2004-01-04
Andover, NJ
kudos:1
Reviews:
·Comcast
reply to NetDog
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Have IPv6 running down here in Selbyville, DE 19975. Asus RT-N16/Tomato 1.28 behind a Zoom Model "J".
--
The difference between genius and stupidity is that genius has its limits.


NetFixer
Bah Humbug
Premium
join:2004-06-24
The Boro
Reviews:
·Cingular Wireless
·Comcast Business..
·Vonage

1 recommendation

reply to NetDog
Add another D-Link router to the list of routers that seem to fully support Comcast's dual stack implementation. I've got to give D-Link a big thumbs up; they seem to be trying very hard to make their entire current residential/soho router product line IPv6 functional. Of course (as with most vendors) if you have an older hardware version that is not in current production, you will likely be out of luck unless your particular router is supported by OpenWRT, DDWRT, et al.

Netgear EBR-2310-C1 firmware rev 3.01






--
A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.

When governments fear people, there is liberty. When the people fear the government, there is tyranny.
Expand your moderator at work


artie

join:2002-07-14
Panama City, FL
reply to NetDog

Re: [IPv6] Evidence of Comcast IPv6 CPE Dual Stack (CPE and CPEP

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1) Panama City, Florida
2) Direct Connect w/ Windows 7
3) ^

jmsq

join:2013-04-25
West Lafayette, IN
reply to NetDog
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1) West Lafayette, IN
2) Linksys E3000 running Tomato


NetFixer
Bah Humbug
Premium
join:2004-06-24
The Boro
Reviews:
·Cingular Wireless
·Comcast Business..
·Vonage

1 recommendation

reply to NetDog
Here are the test results using the D-Link DIR601-A1 with 1.04NA firmware I obtained from the D-Link Canadian web site: »www.dlink.com/ca/en/support/prod ··· =ca_reva

The D-Link US website does not have that firmware release, and it contains some significant improvements to IPv6 implementation over the 1.02NA firmware that is available on the D-Link US web site.






--
A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.

When governments fear people, there is liberty. When the people fear the government, there is tyranny.

fredthomsen
Premium
join:2011-03-01
Reviews:
·T-Mobile US
·Comcast
reply to NetDog
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1) Germantown, MD
2) Netgear N900