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Hurricane Electric's IPv6 Tunnel Broker Forums > General IPv6 Topics > IPv6 on Windows > Can't ping IPv6 gateway, tunnel is up
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Author Topic: Can't ping IPv6 gateway, tunnel is up  (Read 2672 times)
radualexandrupopescu
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« on: June 11, 2011, 01:03:34 pm »
Hi.
I'm having problems with my tunnel. I created it using
Code:
netsh interface teredo set state disabled
netsh interface ipv6 add v6v4tunnel interface=IP6Tunnel 192.168.1.2 216.66.84.46
netsh interface ipv6 add address interface=IP6Tunnel 2001:470:1f14:1a6e::2
netsh interface ipv6 add route ::/0 interface=IP6Tunnel 2001:470:1f14:1a6e::1
and it appears it is up
Code:
C:\Users\Radu>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Radu-PC
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Atheros L1 Gigabit Ethernet 10/100/1000Base-T Controller
   Physical Address. . . . . . . . . : 00-1E-8C-26-C9-97
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Atheros AR5005GS Wireless Network Adapter

   Physical Address. . . . . . . . . : 00-18-E7-1B-9D-07
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::1cc5:9ba8:2f3b:a51b%11(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 11 iunie 2011 17:02:47
   Lease Expires . . . . . . . . . . : 12 iunie 2011 19:15:19
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCP Server . . . . . . . . . . . : 192.168.1.1
   DHCPv6 IAID . . . . . . . . . . . : 184555751
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-51-27-34-00-1E-8C-26-C9-97

   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{4992B96F-CF66-40B6-9D38-A237723A4246}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter IP6Tunnel:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Direct Point-to-point Adapater
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:470:1f14:1a6e::2(Preferred)
   Link-local IPv6 Address . . . . . : fe80::9049:e0ae:8f4f:f501%19(Preferred)
   Default Gateway . . . . . . . . . : 2001:470:1f14:1a6e::1
   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Radu>route print
===========================================================================
Interface List
 12...00 1e 8c 26 c9 97 ......Atheros L1 Gigabit Ethernet 10/100/1000Base-T Controller
 11...00 18 e7 1b 9d 07 ......Atheros AR5005GS Wireless Network Adapter
  1...........................Software Loopback Interface 1
 18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
 19...00 00 00 00 00 00 00 e0 Microsoft Direct Point-to-point Adapater
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0      192.168.1.1      192.168.1.2     25
        127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
        127.0.0.1  255.255.255.255         On-link         127.0.0.1    306
  127.255.255.255  255.255.255.255         On-link         127.0.0.1    306
      192.168.1.0    255.255.255.0         On-link       192.168.1.2    281
      192.168.1.2  255.255.255.255         On-link       192.168.1.2    281
    192.168.1.255  255.255.255.255         On-link       192.168.1.2    281
        224.0.0.0        240.0.0.0         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link       192.168.1.2    281
  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
  255.255.255.255  255.255.255.255         On-link       192.168.1.2    281
===========================================================================
Persistent Routes:
  None

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination      Gateway
 19    286 ::/0                     2001:470:1f14:1a6e::1
  1    306 ::1/128                  On-link
 19    286 2001:470:1f14:1a6e::/64  On-link
 19    286 2001:470:1f14:1a6e::2/128
                                    On-link
 19    286 fe80::/64                On-link
 11    281 fe80::/64                On-link
 11    281 fe80::1cc5:9ba8:2f3b:a51b/128
                                    On-link
 19    286 fe80::9049:e0ae:8f4f:f501/128
                                    On-link
  1    306 ff00::/8                 On-link
 19    286 ff00::/8                 On-link
 11    281 ff00::/8                 On-link
===========================================================================
Persistent Routes:
 If Metric Network Destination      Gateway
  0 4294967295 ::/0                     2001:470:1f14:1a6e::1
===========================================================================

C:\Users\Radu>
But if I ping the gateway, it fails
Code:
C:\Users\Radu>ping -6 2001:470:1f14:1a6e::1

Pinging 2001:470:1f14:1a6e::1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 2001:470:1f14:1a6e::1:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Radu>
Can anyone provide any suggestions?

OS: Windows 7 64bit (Version 6.1 - Build 7601: Service Pack 1)
Behind Router: Yes
DMZ: No, but I tried with it activated and it's the same.


Thank you in advance.
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cholzhauer
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« Reply #1 on: June 11, 2011, 02:01:49 pm »
Tunnel isn't up if you can't ping the ::1 gateway Wink

You have NAT, so I suspect it's a protocol41 issue.  You said you put your host in the DMZ, but this still doesn't work on some routers...what router are you using?
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radualexandrupopescu
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« Reply #2 on: June 11, 2011, 02:50:33 pm »
Huawei EchoLife HG520b
DMZ works for opened ports, and I don't see why it would care if ip.proto == 41 and not 6 or 17...

Meanwhile I tried with a FreeBSD virtual pc setup as dmz, with my windows tunnel config... and still nothing.
Also Wireshark shows some packets "289918   273.170729   2001:470:1f14:1a6e::2   2001:470:0:63::2   TCP   12720 > http [SYN] Seq=0 Win=8192 Len=0 MSS=1220 WS=8 SACK_PERM=1" that seem to be exchanged or at least sent.
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cholzhauer
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« Reply #3 on: June 12, 2011, 08:06:40 am »
Keep in mind that protocol != port

I assume that packet is headed out...do you see any packets coming back in?

The way to test this is to put your host in front of your firewall and try the tunnel again.
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radualexandrupopescu
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« Reply #4 on: June 12, 2011, 11:48:03 am »
Sorry I did not mean that port = protocol, I meant that DMZ works as far as ports are concerned.
As for putting the computer in front of the firewall I don't know any other way besides DMZ. And the router is an ADSL modem, so I can't connect the computer directly. Sad

Regarding the packet trace, I ran it for 10 mins and I did not notice any incoming packets or replies.
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