IPv6 6RD testing

Advanced feature discussion, beta programs and unsupported "Labs" features.
84 posts Page 1 of 9
by dane » Tue Jan 28, 2014 9:14 am
We haven't yet rolled this out to our own Pace 4111N CPE, but it is coming soon. When that occurs, all members using that equipment will automatically see full native client IPv6 automatically.

Meanwhile, members with their own CPE who have asked for IPv6/6RD capabilities can now give it a try. Here are the settings:

6RD prefix: 2602:240::/28
6RD Endpoint: 184.23.144.1

Let us know here if you have success getting IPv6 working, but please don't contact technical support about IPv6, it's experimental and unsupported. Thanks!
Dane Jasper
CEO
Sonic
by nsmill49 » Wed Jan 29, 2014 2:37 am
So far, not working with my Asus RT-AC66U. The 6rd fields are:

Code: Select all

IPv6 Prefix:
IPv6 Prefix Length:
IPv4 Border Router:


Entering your posted values of:

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IPv6 Prefix:         2602:240::
IPv6 Prefix Length:  28
IPv4 Border Router:  184.23.144.1


Does not seem to create the tunnel. I get an IP address, but no Internet access:

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Tracing route to www.google.com [2607:f8b0:4005:800::1012]
over a maximum of 30 hops:

  1     3 ms    <1 ms    <1 ms  2602:24d:9000::1
  2     *        *        *     Request timed out.


And http://test-ipv6.com/ fails 0/10.

When I go back to my Hurricane Electric 6in4 tunnel I pass 10/10, and traverse the IPv6 Internet:

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Tracing route to www.google.com [2607:f8b0:4005:800::1012]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  2001:470:1f05:448::1
  2    37 ms    37 ms    37 ms  NKonaya-1.tunnel.tserv3.fmt2.ipv6.he.net [2001:470:1f04:448::1]
  3    31 ms    32 ms    40 ms  ge5-19.core1.fmt2.he.net [2001:470:0:45::1]
  4    33 ms    45 ms    32 ms  10ge1-1.core1.sjc2.he.net [2001:470:0:31::2]
  5    33 ms    33 ms    32 ms  2001:4860:1:1:0:1b1b:0:9
  6    33 ms    33 ms    33 ms  2001:4860::1:0:7ea
  7    33 ms    33 ms    34 ms  2001:4860:0:1::691
  8    33 ms    32 ms    32 ms  nuq05s01-in-x12.1e100.net [2607:f8b0:4005:800::1012]

Trace complete.


I can't even get the Sonic.net tunnel working, I believe due to a bug in the RT-AC66U GUI, which limits the prefix length to two digits, where I need to use three: 2001:5a8:0:1::149f/127 (the field maxes at 99). :(
by tomoc » Wed Jan 29, 2014 5:02 pm
Our initial test environment was configured for a 6RD prefix of 2602:240::/32, and changing the prefix lenght for production was overlooked. I have updated our configuration to use 2602:240::/28, so please give your same configuration another try and report back!



----
For anyone who would like to try manual tunnel configuration on a unix box, the following steps should be useful.

Example IPv4 Address: 50.0.228.2

A useful tool for converting your IPv4 address into a usable 6RD address is available at http://silmor.de/ipaddrcalc.html under the ' IPv4 to IPv6 Transitional' section
Convertion tool information:
Provider prefix IPv6: 2602:240::/28
Customer IPv4: 50.0.228.2/32 (replace with your IPv4 address)
* Click 'ISP -> Customer' and use an IP from the resulting "IPv6 Customer prefix"

Example output: 2602:243:200E:4020::/60


ip addr add 2602:243:200E:4020::1/60 dev eth0
ip tunnel add 6rd mode sit local 50.0.228.2 ttl 64
ip tunnel 6rd dev 6rd 6rd-prefix 2602:240::/28
ip addr add 2602:243:200E:4020::1/60 dev 6rd
ip link set 6rd up
ip route add ::/0 via ::184.23.144.1 dev 6rd

-Tomoc
by nsmill49 » Wed Jan 29, 2014 10:53 pm
Asus RT-AC66U entries are:

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==================================================
Basic Config
==================================================
Connection type             Tunnel 6rd
DHCP Option               ( )Enable (*)Disable
IPv6 Prefix               2602:240::    User entry
IPv6 Prefix Length        28            User entry
IPv4 Border Router        208.201.234.221 User entry
IPv4 Router Mask Length   0             User entry
Tunnel MTU                0
Tunnel TTL                255
==================================================
IPv6 LAN Setting           (All created by router)
==================================================
LAN IPv6 Address          2602:24a:de40:7d90::1
LAN Prefix Length         60
LAN IPv6 Prefix           2602:24a:de40:7d90::
==================================================
IPv6 DNS Setting                (All user entries)
==================================================
IPv6 DNS Server 1         2001:470:20::2
IPv6 DNS Server 2         2001:4860:4860::8888
IPv6 DNS Server 3         2001:4860:4860::8844
==================================================
Auto Configuration Setting           (User select)
==================================================
Enable Router Advertisement     Enable


Asus RT-AC66U routing table:

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IPv6 routing table
Destination                                 Next Hop                                Flags Metric Ref    Use Iface
::/96                                       ::                                      U     256    1        0 6rd     
2602:24a:de40:7d90::/60                     ::                                      U     256    0        0 br0     
2602:240::/28                               ::                                      U     256    0        0 6rd     
fe80::5d0f:704b:98b7:ff56/128               fe80::5d0f:704b:98b7:ff56               UC    0      1        0 br0     
fe80::/64                                   ::                                      U     256    0        0 vlan1   
fe80::/64                                   ::                                      U     256    0        0 eth1   
fe80::/64                                   ::                                      U     256    0        0 eth2   
fe80::/64                                   ::                                      U     256    0        0 br0     
fe80::/64                                   ::                                      U     256    0        0 6rd     
::/0                                        ::208.201.234.221                       UG    1      109       0 6rd     
::1/128                                     ::                                      U     0      0        1 lo     
::173.228.7.217/128                         ::                                      U     0      0        1 lo     
2602:240::/128                              ::                                      U     0      0        2 lo     
2602:24a:de40:7d90::/128                    ::                                      U     0      0        1 lo     
2602:24a:de40:7d90::/128                    ::                                      U     0      0        2 lo     
2602:24a:de40:7d90::1/128                   ::                                      U     0      0        1 lo     
fe80::/128                                  ::                                      U     0      0        2 lo     
fe80::/128                                  ::                                      U     0      0        2 lo     
fe80::/128                                  ::                                      U     0      0        2 lo     
fe80::/128                                  ::                                      U     0      0        2 lo     
fe80::62a4:4cff:fedc:9198/128               ::                                      U     0      0        1 lo     
fe80::62a4:4cff:fedc:9198/128               ::                                      U     0      0        1 lo     
fe80::62a4:4cff:fedc:9198/128               ::                                      U     0      1        1 lo     
fe80::62a4:4cff:fedc:919c/128               ::                                      U     0      0        1 lo     
ff02::1/128                                 ff02::1                                 UC    0      10      10 br0     
ff02::2/128                                 ff02::2                                 UC    0      1        0 br0     
ff02::c/128                                 ff02::c                                 UC    0      72       0 br0     
ff02::16/128                                ff02::16                                UC    0      34       0 br0     
ff02::1:2/128                               ff02::1:2                               UC    0      1        0 br0     
ff02::1:3/128                               ff02::1:3                               UC    0      58       0 br0     
ff02::1:ff14:561c/128                       ff02::1:ff14:561c                       UC    0      3        0 br0     
ff02::1:ff37:dfc2/128                       ff02::1:ff37:dfc2                       UC    0      1        0 br0     
ff02::1:ffb7:ff56/128                       ff02::1:ffb7:ff56                       UC    0      4        0 br0     
ff02::1:ffdc:9198/128                       ff02::1:ffdc:9198                       UC    0      14       0 br0     
ff00::/8                                    ::                                      U     256    0        0 vlan1   
ff00::/8                                    ::                                      U     256    0        0 eth1   
ff00::/8                                    ::                                      U     256    0        0 eth2   
ff00::/8                                    ::                                      U     256    0        0 br0     
ff00::/8                                    ::                                      U     256    0        0 6rd     
by tomoc » Thu Jan 30, 2014 10:05 am

Code: Select all

IPv4 Border Router        208.201.234.221 User entry


The above needs to be configured for 184.23.144.1 as you had previously.
by Guest » Sat Feb 01, 2014 12:07 am
using a Linksys EA2700, the Windows traceroute seems to be stuck inside Sonic

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c:\temp>tracert -d 2607:f8b0:4005:800::1008
Tracing route to 2607:f8b0:4005:800::1008 over a maximum of 30 hops
  1    15 ms     8 ms     2 ms  2602:24a:de47:cdd0:22aa:4bff:fe8f:71a0
  2     *        *        *     Request timed out.
  3    27 ms    25 ms    59 ms  2001:5a8:5:d::1
  4    33 ms    38 ms    23 ms  2001:5a8:5:8::2
  5    35 ms    28 ms     *     2001:5a8:5:6::1
  6    32 ms    29 ms    39 ms  2001:550:2:3a::9:1
  7    36 ms    38 ms    37 ms  2001:550:4::48
  8    34 ms    37 ms    28 ms  2001:550:2:1f::46:2
  9    37 ms    39 ms    34 ms  2001:4860::1:0:7ea
 10    33 ms    28 ms    38 ms  2001:4860:0:1::691
 11     *        *        *     Request timed out.
 12     *        *        *     Request timed out.


traceroute from for Hurricane Electric looking glass to Sonic

Code: Select all

Target   2602:24a:de47:cb10:68de:555d:c14c:cd51
1   9 ms   13 ms   11 ms   10ge11-1.core1.sjc2.he.net (2001:470:0:2f::2)
2   13 ms   3 ms   2 ms   2001:504:0:1::8121:1
3   2 ms   2 ms   20 ms   xe-1-6.core2.sv1.layer42.net (2001:1868::408)
4   2 ms   2 ms   2 ms   xe4-4.core2.mpt.layer42.net (2001:1868::324)
5   13 ms   7 ms   2 ms   xe0-0-0-4.core1.sv8.layer42.net (2001:1868::380)
6   2 ms   15 ms   1 ms   2001:1868:a200::2
7   2 ms   2 ms   16 ms   0.xe-6-1-0.gw2.200p-sf.sonic.net (2001:5a8:5:6::2)
8   *   *   *   ?
9   *   *   *   ?
by Guest » Sat Feb 01, 2014 12:29 am
Looks like some sort of BGP issue on Google's side, with your not being able to enter their backbone. Try tracing other IPv6 sites to see if it is really Sonic's problem.
by Guest » Sat Feb 01, 2014 12:46 pm
Actually, in fact, it does seem to be a BGP issue on Sonic's part. I can't traceroute into its IPv6 network either. I'm guessing Sonic is going to be bringing up more BGP sessions though (including both peering and transit; remember that every tier 1 network has to be able to see Sonic's routes).
by nsmill49 » Sat Feb 01, 2014 9:33 pm
Guest wrote:
using a Linksys EA2700, the Windows traceroute seems to be stuck inside Sonic

After a "duh-oh" moment (I was switching between HE 6in4, Sonic.net 6in4, and Sonic.net 6rd), somebody straightened me out about the appropriate IPv4 address for the 6rd tunnel. Properly configured in my Asus RT-AC66U, my trace route looks like yours:

Code: Select all

Tracing route to www.google.com [2607:f8b0:4005:800::1012]
over a maximum of 30 hops:

  1     7 ms    <1 ms    <1 ms  2602:24a:de40:7d90::1
  2     *        *        *     Request timed out.
  3    32 ms    32 ms    32 ms  201.ge-5-1-1.gw.200p-sf.sonic.net [2001:5a8:5:d::1]
  4    33 ms    32 ms    31 ms  0.as0.gw2.200p-sf.sonic.net [2001:5a8:5:8::2]
  5    33 ms    32 ms    32 ms  0.xe-6-0-0.gw.pao1.sonic.net [2001:5a8:5:6::1]
  6    32 ms    33 ms    33 ms  2001:550:2:3a::9:1
  7    35 ms    34 ms    34 ms  2001:550:4::48
  8    34 ms    33 ms    33 ms  2001:550:2:1f::46:2
  9    33 ms    35 ms    37 ms  2001:4860::1:0:7ea
 10    34 ms    33 ms    34 ms  2001:4860:0:1::691
 11     *        *        *     Request timed out.
 12  ^C


I hope Sonic.net gets things sorted out, soon.
by nsmill49 » Sat Feb 01, 2014 9:46 pm
dane wrote:
... members with their own CPE who have asked for IPv6/6RD capabilities can now give it a try. Here are the settings:

6RD prefix: 2602:240::/28
6RD Endpoint: 184.23.144.1

My Asus RT-AC66U has a field labeled, "IPv4 Router Mask Length" right below the field for the 6rd endpoint. The router defaults to a value of, "24". When that failed, I poked around the Internet, and came across a web page for configuring a Comcast 6rd tunnel. The instructions were to use a value of, "0", in that field. When I changed from "24" to "0", I could finally get something going; but I am still failing at http://test-ipv6.com/ with the following Asus configuration:

Code: Select all

Connection type           [Tunnel 6rd]    
DHCP Option               ( )Enable (*)Disable
IPv6 Prefix               2602:240::   
IPv6 Prefix Length        28
IPv4 Border Router        184.23.144.1
IPv4 Router Mask Length   0
Tunnel MTU                [   ]
Tunnel TTL                [255]
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