I have a strange effect here, which I do not understand.
PS C:\Users\user1> ping fe80::219:bbff:fe0e:c600%16 -t
Ping wird ausgeführt für fe80::219:bbff:fe0e:c600%16 mit 32 Bytes Daten:
Zielhost nicht erreichbar.
Zielhost nicht erreichbar.
Zielhost nicht erreichbar.
Zielhost nicht erreichbar.
Zielhost nicht erreichbar. (Destination is unreachable)
Zielhost nicht erreichbar.
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Antwort von fe80::219:bbff:fe0e:c600%16: Zeit=1ms
Antwort von fe80::219:bbff:fe0e:c600%16: Zeit<1ms
Antwort von fe80::219:bbff:fe0e:c600%16: Zeit<1ms
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As you can see the host (my default gateway) is not reachable for a while (1 or 2 minutes) and then it changes. I have this effect only with Windows 7 (Server 2008 R2, Server 2012 R2).
When I do a ping with a Linux-System (e.g. SLES12) or even with Windows XP the gateway is reachable immediately! So i think my config can't be so wrong.
Neighbor Discovery gives me:
netsh interface ipv6>show neighbors interface=16
Schnittstelle 16: LAN-Verbindung 2
Internetadresse Physische Adresse Typ
-------------------------------------------- ----------------- ---------
fda0:65da:e55a:1::1 00-0c-29-56-69-f6 Abgelaufe
fda0:65da:e55a:1::2 00-0c-29-41-b8-97 Abgelaufe
fda0:65da:e55a:1::3 00-0c-29-02-da-0b Abgelaufe
fda0:65da:e55a:1:89f6:fad7:862a:c2e4 00-0c-29-41-b8-97 Abgelaufe
fda0:65da:e55a:1:e49b:4bb8:df52:d34a 00-0c-29-56-69-f6 Abgelaufe
fda0:65da:e55a:1:ecb9:2efb:ffa5:770b 00-0c-29-1a-a5-e4 Abgelaufe
fe80::219:bbff:fe0e:c600 00-19-bb-0e-c6-00 Abgelaufe (Stale)
fe80::3aea:a7ff:fe6a:6b43 38-ea-a7-6a-6b-43 Abgelaufe (^--this changes to Reachable when the ping is successful)
fe80::6651:6ff:fe27:6a8d 64-51-06-27-6a-8d Abgelaufe
fe80::6651:6ff:fe27:7ab0 64-51-06-27-7a-b0 Abgelaufe
fe80::a248:1cff:fe6c:7a02 a0-48-1c-6c-7a-02 Abgelaufe
fe80::a2d3:c1ff:feea:4359 a0-d3-c1-ea-43-59 Abgelaufe
fe80::fe15:b4ff:fe2c:d338 fc-15-b4-2c-d3-38 Abgelaufe
fe80::fe15:b4ff:fe2c:e3f0 fc-15-b4-2c-e3-f0 Abgelaufe
fe80::fe15:b4ff:fe2c:e3f5 fc-15-b4-2c-e3-f5 Abgelaufe
fe80::fe15:b4ff:fe2c:e3f6 fc-15-b4-2c-e3-f6 Abgelaufe
fe80::fe15:b4ff:fe2f:ff46 fc-15-b4-2f-ff-46 Abgelaufe
fe80::fe15:b4ff:fe31:e7c6 fc-15-b4-31-e7-c6 Abgelaufe
ff02::1 33-33-00-00-00-01 Permanent
....
The host is my default gateway. It is a HP5406. I have configured two VLAN's for IPv6. This is the default VLAN, which I am in.
SW5406-1# show ipv6
Internet (IPv6) Service
IPv6 Routing : Enabled
ND DAD : Enabled
DAD Attempts : 3
VLAN Interfaces
Interface Name : DEFAULT_VLAN
IPv6 Status : Enabled
Layer 3 Status : Enabled
Address | Address
Origin | IPv6 Address/Prefix Length Status
---------- + ------------------------------------------- -----------
manual | fda0:65da:e55a:1::feed:1/64 preferred
autoconfig | fe80::219:bbff:fe0e:c600/64 preferred
Interface Name : Firewall
IPv6 Status : Disabled
Layer 3 Status : Enabled
Interface Name : RFID
IPv6 Status : Disabled
Layer 3 Status : Enabled
Interface Name : Voice
IPv6 Status : Disabled
Layer 3 Status : Enabled
Interface Name : DPC
IPv6 Status : Enabled
Layer 3 Status : Enabled
Address | Address
Origin | IPv6 Address/Prefix Length Status
---------- + ------------------------------------------- -----------
autoconfig | fe80::219:bbff:fe0e:c600/64 preferred
Any hint could be useful for me.
Let me know if you need further information.
