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inet6 addr not working with Cisco 6to4 tunnel?

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dvtestguy

Technical User
Dec 8, 2005
109
US
I had to reboot a router and had IPv6 (6to4) tunneling working, but somehow does not work anymore?

If i look at an ifconfig or ipconfig i should see the Scopre:global ip's from tunnel0...

See example below & cisco configs.

inet addr:10.15.12.215 Bcast:10.15.12.255 Mask:255.255.255.0
inet6 addr: 2002:a0f:802:1:215:c5ff:fef5:4beb/64 Scope:Global
inet6 addr: fe80::215:c5ff:fef5:4beb/64 Scope:Link

cisco3845#sh run int g0/0
interface GigabitEthernet0/0
ip address 10.15.8.2 255.255.255.0
duplex auto
speed auto
media-type rj45
ipv6 enable
end

cisco3845#sh run int g0/1.12
interface GigabitEthernet0/1.12
encapsulation dot1Q 12
ip address 10.15.12.1 255.255.255.0
ipv6 address 2002:A0F:802:1::1/64
ipv6 enable
end

cisco3845#sh run int t0
interface Tunnel0
no ip address
no ip redirects
ipv6 address 2002:A0F:802::1/64
ipv6 enable
tunnel source GigabitEthernet0/0
tunnel mode ipv6ip 6to4
end

ipv6 route 2002::/16 Tunnel0

cisco3845#show ipv6 route
IPv6 Routing Table - Default - 6 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, M - MIPv6, R - RIP, I1 - ISIS L1
I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, D - EIGRP
EX - EIGRP external
O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
S 2002::/16 [1/0]
via Tunnel0, directly connected
C 2002:A0F:802::/64 [0/0]
via Tunnel0, directly connected
L 2002:A0F:802::1/128 [0/0]
via Tunnel0, receive
C 2002:A0F:802:1::/64 [0/0]
via GigabitEthernet0/1.12, directly connected
L 2002:A0F:802:1::1/128 [0/0]
via GigabitEthernet0/1.12, receive
L FF00::/8 [0/0]
via Null0, receive

Thanks!
 
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