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NetFixer
Freedom is NOT Free
Premium
join:2004-06-24
The Boro
Reviews:
·Cingular Wireless
·Comcast Business..
·Vonage

2 edits
reply to NetDog

Re: [IPv6] Comcast IPv6 Gives Address But No Default Gateway

said by NetDog:

I am thinking it is not a CPE router issue but a modem issue at this point. I have one other person with the same issue same modem firmware. I have also emailed customers with IPv6 running on both CMTS's and they are not having any issues with IPv6. So let me send some emails and track down people next week to work on this one.

FYI.. the modem is SB6121\SB6120 1.0.6.8, so if anyone else has a SB6121\SB6120 and IPv6 please PM me or post here.. I would like to know if others are having or not having issues with IPv6.

I am using an SB6121:
Firmware Name: SB_KOMODO-1.0.6.8-SCM01-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 5.0

I connect to a Cadant CMTS: (CMTS-MAC=00:01:5c:3c:f4:48) located in Murfreesboro, TN.

I have no problems with Comcast's native dual stack using a D-Link DIR655 (Hardware Version: B1 Firmware Version: 2.10NA).

I also use a Comcast/Netgear WNR1000v2-VC (Firmware Version V1.2.2.56NA) as a guest router, and except for an annoying anomaly where the router's WAN IPv6 address (but not its prefix) and its corresponding PD LAN prefix (but not its local IPv6 address) randomly change every couple of weeks (which is apparently a Comcast/Netgear firmware problem), IPv6 is working for and behind that router which is connected to the same SB6121 cable modem (I have a "c05" modem config file) through Netgear FS105 and ZyXEL GS105S switches.

If it helps to visualize my connection, you can see my current network diagram at: »www.dcs-net.net/image/DCS-networ···gram.gif
--
We can never have enough of nature.
We need to witness our own limits transgressed, and some life pasturing freely where we never wander.


NetDog
Premium,VIP
join:2002-03-04
Parker, CO
kudos:79
said by NetFixer:

I am using an SB6121:
Firmware Name: SB_KOMODO-1.0.6.8-SCM01-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 5.0

I connect to a Cadant CMTS: (CMTS-MAC=00:01:5c:3c:f4:48) located in Murfreesboro, TN.

I have no problems with Comcast's native dual stack using a D-Link DIR655 (Hardware Version: B1 Firmware Version: 2.10NA).

This is great thanks for the info, this will be me a place to start..


koitsu
Premium,MVM
join:2002-07-16
Mountain View, CA
kudos:23
As for my setup, so that you can use it as a datapoint as well:

Model Name: SB6121
Vendor Name: Motorola
Firmware Name: SB_KOMODO-1.0.6.8-SCM01-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 5.0

I connect to CMTS-MAC=00:01:5c:32:6e:44, which is also a Cadent unit. I've been trying for months to get a concise geographic location of where the head-end is, but I'm connecting out of Mountain View, CA.

Router model is an Asus RT-N16, presently running TomatoUSB Toastman firmware tomato-K26USB-1.28.0500.5MIPSR2Toastman-RT-N-Ext.trx with IPv6 disabled (and if you need me to enable + test it let me know -- I have done so in the past with 100% success, but with these firmware/router adjustments needing to be applied to make things work).
--
Making life hard for others since 1977.
I speak for myself and not my employer/affiliates of my employer.


NetDog
Premium,VIP
join:2002-03-04
Parker, CO
kudos:79

1 recommendation

said by koitsu:

Router model is an Asus RT-N16, presently running TomatoUSB Toastman firmware tomato-K26USB-1.28.0500.5MIPSR2Toastman-RT-N-Ext.trx with IPv6 disabled (and if you need me to enable + test it let me know -- I have done so in the past with 100% success, but with these firmware/router adjustments needing to be applied to make things work).

I have been told people got Tomato working with DHCPv6-PD support.. Have you tried it lately? Latest code that is..


koitsu
Premium,MVM
join:2002-07-16
Mountain View, CA
kudos:23
said by NetDog:

said by koitsu:

Router model is an Asus RT-N16, presently running TomatoUSB Toastman firmware tomato-K26USB-1.28.0500.5MIPSR2Toastman-RT-N-Ext.trx with IPv6 disabled (and if you need me to enable + test it let me know -- I have done so in the past with 100% success, but with these firmware/router adjustments needing to be applied to make things work).

I have been told people got Tomato working with DHCPv6-PD support.. Have you tried it lately? Latest code that is..

The workarounds in the 3rd link are still needed today (at least with TomatoUSB Toastman builds). The reason is that there are conflicting situations (ISPs mainly); for example the workaround is correct for Comcast here in the states, but causes breakage when used with some ISPs in Australia. So it's not something that Toastman, at this point, feels comfortable committing.
--
Making life hard for others since 1977.
I speak for myself and not my employer/affiliates of my employer.


NetDog
Premium,VIP
join:2002-03-04
Parker, CO
kudos:79

1 edit
reply to NetFixer

said by NetFixer See Profile
I am using an SB6121:
Firmware Name: SB_KOMODO-1.0.6.8-SCM01-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 5.0

I connect to a Cadant CMTS: (CMTS-MAC=00:01:5c:3c:f4:48) located in Murfreesboro, TN.

NetFixer,

Can you PM me your CM MAC please or if you know the bootfile you have on your device please. I would like to change "dabomb4097" device to the same bootfile and see if that is the issue.