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On Wed, Jun 8, 2011 at 5:04 PM, Mick <michaelkintzios@×××××.com> wrote: |
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> On Wednesday 08 Jun 2011 20:51:10 Paul Hartman wrote: |
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>> |
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>> Charter Communications cable internet: |
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>> |
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>> Test with IPv4 DNS record |
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>> ok (0.580s) using ipv4 |
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>> Test with IPv6 DNS record |
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>> ok (0.268s) using ipv6 |
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>> Test with Dual Stack DNS record |
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>> ok (0.256s) using ipv6 |
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>> Test for Dual Stack DNS and large packet |
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>> ok (0.090s) using ipv6 |
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>> Test IPv4 without DNS |
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>> ok (0.148s) using ipv4 |
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>> Test IPv6 without DNS |
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>> ok (0.162s) using ipv6 |
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>> Test IPv6 large packet |
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>> ok (0.092s) using ipv6 |
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>> Test if your ISP's DNS server uses IPv6 |
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>> ok (0.316s) using ipv6 |
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>> |
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>> :) |
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> |
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> I find this rather confusing! Paul is your ISP offering native IPv6 and if |
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> they do does your router speak ipv6? |
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My ISP (Charter) does not offer native IPv6 yet, but they do offer a |
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6RD Border Relay. It is basically an IPv6 tunnel that runs over an |
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IPv4 network, but the important part is that the tunnel server is |
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running within my ISP's network. That means I get my full internet |
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speed on IPv6 traffic! |
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|
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My wireless router is running DD-WRT (which is a Linux distro). It is |
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running kernel 2.6.34 and has all the ipv6 modules enabled in the |
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kernel. Basically, it is setup by loading the "sit" module |
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(CONFIG_IPV6_SIT_6RD in kernel config). Then using the "ip" command to |
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create a sit tunnel and set up the routes for IPv6 traffic, and then |
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starts radvd (the IPv6 router advertisement daemon, think of it as a |
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kind of DHCP server for IPv6 addresses). The process should be exactly |
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the same on OpenWRT. |
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|
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After that, machines on my local network (including wifi) can get both |
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IPv4 and IPv6 addresses from the router and can talk to the outside |
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world on either network. |
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|
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(and then when you get to that point, you should create IPv6 firewall |
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rules on the router and/or computers, or else risk leaving their |
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entire network open to bad guys) |
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|
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> What does your /etc/resolv.conf show? |
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|
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$ cat /etc/resolv.conf |
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nameserver 127.0.0.1 |
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|
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(because I run net-dns/unbound on my local machine). For the other |
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computers/devices they use the DNS server which runs on the router, |
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192.168.0.1 |
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|
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My ISP does offer DNS servers at actual IPv6 addresses, though I'm not |
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using them. |
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|
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> When I run this test I get: |
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> |
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> Test with IPv4 DNS record |
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> ok (0.552s) using ipv4 |
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> Test with IPv6 DNS record |
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> bad (0.197s) |
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> Test with Dual Stack DNS record |
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> ok (0.558s) using ipv4 |
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> Test for Dual Stack DNS and large packet |
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> ok (0.239s) using ipv4 |
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> Test IPv4 without DNS |
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> ok (0.368s) using ipv4 |
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> Test IPv6 without DNS |
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> bad (0.022s) |
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> Test IPv6 large packet |
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> bad (0.025s) |
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> Test if your ISP's DNS server uses IPv6 |
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> ok (0.691s) using ipv4 |
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|
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For example all this stuff just works normally here: |
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|
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$ host ipv6.google.com |
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ipv6.google.com is an alias for ipv6.l.google.com. |
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ipv6.l.google.com has IPv6 address 2001:4860:800b::93 |
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|
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# traceroute6 ipv6.google.com |
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traceroute to ipv6.l.google.com (2001:4860:800b::93) from |
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2602:100:xx:xx:xx:xx:xx:xx, 30 hops max, 24 byte packets |
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1 2602:100:xx:xx:1::1 (2602:100:xx:xx:1::1) 0.459 ms 0.383 ms 0.353 ms |
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2 * * * |
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3 2001:506:100:6c::1 (2001:506:100:6c::1) 11.29 ms 7.999 ms 7.773 ms |
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4 bbr01olvemo.tge0-3-0-4.mo.olve.charter.com (2001:506:100:23::1) |
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9.093 ms 7.715 ms 7.691 ms |
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5 bbr02chcgil.tge0-3-0-0.il.chcg.charter.com (2001:506:100:55::2) |
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33.981 ms 25.812 ms 23.573 ms |
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6 prr01chcgil.tge2-4.il.chcg.charter.com (2001:506:100:317::1) |
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16.862 ms 17.737 ms 16.46 ms |
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7 v201.core1.chi1.he.net (2001:470:0:114::1) 18.04 ms 17.368 ms 24.015 ms |
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8 * * * |
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9 2001:4860::1:0:92e (2001:4860::1:0:92e) 34.911 ms 18.025 ms 25.379 ms |
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10 2001:4860::8:0:281e (2001:4860::8:0:281e) 27.843 ms 28.74 ms 28.569 ms |
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11 2001:4860::2:0:7ef (2001:4860::2:0:7ef) 27.568 ms 28.365 ms 28.221 ms |
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12 2001:4860:0:1::83 (2001:4860:0:1::83) 27.586 ms 37.284 ms 35.649 ms |
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13 iw-in-x93.1e100.net (2001:4860:800b::93) 27.731 ms 27.647 ms 28.372 ms |
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|
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> From Windows7 I can ping ipv6 addresses (but not domain names) because it uses |
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> Teredo, but from Linux I cannot. |
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For Microsoft Windows (at least Windows 7), when it detects IPv6 |
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advertisement server on the local network, it will use it |
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automatically. When no IPv6 is detected, it uses Teredo instead. Maybe |
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your DNS servers don't return IPv6 addresses? |
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On my wife's Windows 7 laptop, it just worked perfectly after I |
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enabled it on my router and her wifi reconnected. All tests on |
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test-ipv6.com pass except for the last DNS test. She can go to sites |
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like http://www.v6.facebook.com no problems. |
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BTW, Windows Vista and 7 generate randomized host IDs for public IPv6 |
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addresses, it's generally advised to disable that. You can do that by |
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running this at administrator cmd prompt: |
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netsh interface ipv6 set global randomizeidentifiers=disabled |
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And now I'll try not to talk about Windows on this list again for the |
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remainder of the year. ;) |
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Hope that helps! |
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