I just succeeded in upgrading relatives in San Antonio, TX to the Time Warner 30mbps/5mbps "extreme" internet + voice and in the process have IPV6 working well!
I wanted to pass along some details and tips for anybody else working their way through this conversion to IPV6 and faster DOCSIS 3.0 internet. I'm posting this as a separate topic rather than in another IPV6 thread I see so as not to hijack that thread with my ramblings here.
The existing TM602G cable modem (with voice service) was a DOCSIS 2.0 modem while the new TG852G supplied by Time Warner today is DOCSIS 3.0 capable. So this is a DOCSIS 2.0 to 3.0 upgrade along with moving from IPV4 single stack to IPV6/IPV4 dual stack internet service. From my phone chats and in-person interactions over the past few days the various Time Warner people in general had no idea about the details on how any of this works, or how it all hooks together, so another reason some details here may be helpful. You will essentially be on your own to get it all working properly. In fairness to the TW people they were all very nice and tried extremely hard to be helpful, they just obviously had next to zero training from TW in the nitty gritty technical details of all this.
The existing system was a TW Arris TM602G cable modem feeding a D-link DIR655 NAT router with wireless/wireline for the internet, and feeding voice phones. The DIR655 is a several years old V 1.0 that does not support IPV6. This is one of TW's "triple play" digital TV / voice / internet package. The internet was all IPV4 ruuning at 20mbps down and 2mbps up (their "turbo" internet package). The incoming WAN port on the DIR655 from the 602G was the typical X.X.0.X subnet. The DIR655 was configured for a X.X.8.X subnet. The lower half of the LAN address space to .100 was static, with the upper .101 on DHCP.
The TW sales person on the phone didn't know the TM602G was only DOCSIS 2.0, nor did it show up in their system as needing to be changed, and it wasn't until I brought it up they researched and found the swap to the DOCSIS 3.0 Arris TG852G was necessary. So first thing, make sure you specially ask for a DOCSIS 3.0 modem if doing this upgrade. Second thing, you can get some REALLY good package deals right now! The existing system was their $99 basic triple-play (voice/TV/internet) package in this market with non-DVR Cisco 4742 boxes (see my other thread for the problem with these fighting with Samsung boxes). By going up just $20 to their $119 package it added a HD DVR (Cisco 8642 which did play nice with the 4742s) and bumped up the internet from 20/2 (docsis 2.0) to 30/5 (docsis 3.0). First thing I did when I got it all working was a speakeasy speed test on the internet connection. Sure enough, 31mbps down, 5.2mbps upstream. exactly as advertised.
Next thing I discovered on unwrapping the TG852G that I picked up at the local office was no battery installed in the bottom. The TM602G had a 8.4V 2200mAhr lithium cell to keep the phones alive during power failures. Looked it up online and found the TG852 uses a 8.4V 2600mAhr, slightly more capacity. I asked at the local office and when I mentioned it was needed to keep the voice circuit alive in a power failure was told that "your home phones WILL NOT work when there is a power failure. The battery is just there to power alarm circuits and is not included". Aarrgghh. But they said the old battery work work in the new modem and let me keep it. The 2200mAhr did fit. I later asked the same question to TW phone support and got the correct answer, that the battery IS still expected to keep the voice phone alive, but still no offer of a new battery. I see the 2600mAhr cell is available for purchase online at various stores.
Next up was configuring the modem. 192.168.0.1 gets you in, as is typical, with user=admin and password=password. Obviously the next thing to do here is change the password! Use at least 16 characters, of course. The WAN parameters are left alone, set up as default for DHCP on TW's end, which is correct. For the LAN I set it up for my prefered .8 subnet, with half static and half DHCP.
One potential gotcha here to be aware of. Under no circumstances turn on the DNS relay service! I have lost probably a week of my life collectively over the years debugging problems in commercial systems related to the DNS relay not working correctly in consumer client routers on the receiving end. Internal buffers fill up and overflow in some consumer routers over the past few years. Turn the feature off and instead enter the TW DNS primary and secondary DNS server IPs directly in the client computer networking settings. The TW DNS server IPs show up on the TG852G router status page. In addition I usually interleave these with two more from OpenDNS. So TWpri, ODNSpri, TWsec, ODNSsec. That way if TW's connection to their DNS goes down it flips over to open DNS and keeps you going. Who knows, maybe DNS relay works fine in the TG852G, but I've seen it broken in so many other consumer routers, and it causes such weird problems when it stops working, that I just would advise not going there.
But looking through the setup screens the next thing that became evident is the TG852G is, in fact, a NAT router with stateful firewall! And it is a wireless router supporting B/G/N. At this point I start thinking it may be able to replace the DIR655 getting things down to just one box, this cable modem / NAT-router / wireless access point. I look up the specs and the TG852G has 4 10/100/1000 ports just like the DIR655. Two phone ports like the old TM602G. So unhook the DIR655, move the ethernet cables over, and set up the wireless with a SSID, key, and WPA2/AES. Great!
Well, not so great in practice. The wireline internet works fine at all the computers (still IPV4 at this point), but the N wireless signal is just a tiny shadow of its previous self with the DIR655 when I try at some areas 2 rooms away in various directions. The wireless power level setting in the TG852G is set to "high" for all this. I was wondering how well the TG852G would do without the 3 external antennas on the DIR655. The answer is "not well".
So at this point I decide to use the DIR655 just as a firewall + wireless access point. I re-configure it for the .9 subnet (192.168.9.x) on the LAN. I kind of like the idea of a separate firewall and NAT router (the DIR655) between the wireline firewall and NAT router (the TG852G) anyway. The DIR655's WAN is left at DHCP to pick up one of the .8 subnet DHCP addresses when plugged into one of the TG852G LAN ports (I actually have one port feeding a 8 port 10/100/1000 switch to make more ports).
This all works great and once again the wireless is up and running with the DIR655 fed by the TG852G. The wireline LAN ports on the DIR655 are unused now, of course. All wireline stuff is plugged into the TG852G, which will become important for IPV6, below. The one gotcha here is having to do the re-configure of the DIR655 offline, plugged into a laptop set up for the .8 subnet, to switch over to .9 subnet before plugging into the TG852G.
Then, with the IPv4 stuff all working now, I finally get to the IPV6.
First I notice in the TG852G status screen that the incoming WAN IP and outgoing LAN IPs are both shown as dual stack addresses (IPV4 AND IPV6 together) in the form XXX.XXX.XXX.XXX / 2001:0db8:85a3:0042:1000:8a2e:0370:7334 (for format example). So that is the first clue that the incoming internet feed actually is being sent dual stack!
Next is turning IPV6 on in the computers which are all running Windows 7 Pro. I had specifically disabled IPV6 in the Windows networking a couple of years ago since I knew there was no chance of an IPV6 feed on the WAN or local LAN and the DIR655 router was only IPv4. In the Win7 network adapter settings for the ethernet chip or card, check (or re-check) the "internet protocol version 6" item in the list. If you haven't messed with this, I believe that Microsoft defaults it to "on", so your IPV6 may already be enabled. Then say "OK" to save, go back into the adapter settings, and go to the chip or card configure button. On the "advanced" tab turn on any IPV6 offloads the chip may have to speed things up. Then save.
Close any browsers then restart a browser. If you are using Firefox, go to the extensions and install a new one called "4or6" which will show you if any given site is using IPV4 or IPV6. Then give it a try! Type in ipv6.cnn.com. That should come up with cnn's home page via IPV6 feed. Then, in Firefox, type "cat" into the Google search box and do a search. Click on "images" and you'll see the 4or6 indicator flip to (IPV)6. Then click on any of the feline photos. Most are served up preferentially on IPV6. Google also has an IPv6 version at ipv6.google.com to try.
An ipv6 test is at ipv6-test.com. This comes up with:
"When both protocols are available, your browser uses IPv6"
Your internet connection is IPv6 capable [edit: gives the exact ipv6 address here]
Road Runner [United States]
Address type is Global Unicast / Native IPv6
Your internet connection is IPv4 capable [edit: gives the exact ipv4 address here]
Road Runner HoldCo LLC
So dual-stack IPV6 / IPV4 service from Time Warner is confirmed! Success.
Google is keeping worldwide IPV6 adoption statistics at
»www.google.com/ipv6/stat ··· ics.html
Click on the "per-country IPv6 adoption" tab, then click on the graphic of the US, and it comes up with 2.21% adoption right now (December 26, 2012). So the relatives are in the 2% now.
Romania seems to be the leader in IPv6 adoption at 8.78%. France is the other major player at 5.07%.