intervlan ipv6 routing

[nadirbholah9920]

Hello guys,i am creating a network for a university project.I have created 3 sub interfaces on a router,and 1 vlan on each network.I can ping network 

2001:4200:ACAD:1::/64 and 

2001:4200:ACAD:2::/64 but not 

2001:4200:ACAD:3::/64. I can only ping the interface on the router and from the 1 and 2 network.I can't ping from the pc connected to the switch on network 2001:4200:ACAD:3::/64.Help me please.

router configuration:

ipv6 unicast-routing

!

no ipv6 cef

!

!

!

!

license udi pid CISCO1941/K9 sn FTX15243NWJ

!

!

!

!

!

!

!

!

!

!

!

spanning-tree mode pvst

!

!

!

!

!

!

interface GigabitEthernet0/0

no ip address

duplex auto

speed auto

!

interface GigabitEthernet0/0.10

encapsulation dot1Q 10

no ip address

ipv6 address 2001:4200:ACAD:1::10/64

!

interface GigabitEthernet0/0.20

encapsulation dot1Q 20

no ip address

ipv6 address 2001:4200:ACAD:2::10/64

!

interface GigabitEthernet0/0.30

encapsulation dot1Q 30

no ip address

ipv6 address 2001:4200:ACAD:3::10/64

!

interface GigabitEthernet0/1

no ip address

duplex auto

speed auto

!

interface FastEthernet0/0/0

switchport mode access

switchport nonegotiate

!

interface FastEthernet0/0/1

switchport mode access

switchport nonegotiate

!

interface FastEthernet0/0/2

switchport mode access

switchport nonegotiate

!

interface FastEthernet0/0/3

switchport mode access

switchport nonegotiate

!

interface Serial0/1/0

no ip address

clock rate 2000000

!

interface Serial0/1/1

no ip address

clock rate 2000000

!

interface Vlan1

no ip address

shutdown

!

ip classless

!

ip flow-export version 9

!

!

!

!

!

!

!

line con 0

!

line aux 0

!

line vty 0 4

login

!

!

!

end

Router#

switch 5 configuration

interface FastEthernet0/1

switchport access vlan 30

switchport mode access

!

interface FastEthernet0/2

!

interface FastEthernet0/3

!

interface FastEthernet0/4

!

interface FastEthernet0/5

!

interface FastEthernet0/6

!

interface FastEthernet0/7

!

interface FastEthernet0/8

!

interface FastEthernet0/9

!

interface FastEthernet0/10

!

interface FastEthernet0/11

!

interface FastEthernet0/12

!

interface FastEthernet0/13

!

interface FastEthernet0/14

!

interface FastEthernet0/15

!

interface FastEthernet0/16

!

interface FastEthernet0/17

!

interface FastEthernet0/18

!

interface FastEthernet0/19

!

interface FastEthernet0/20

!

interface FastEthernet0/21

!

interface FastEthernet0/22

!

interface FastEthernet0/23

!

interface FastEthernet0/24

!

interface GigabitEthernet0/1

switchport mode trunk

!

interface GigabitEthernet0/2

!

interface Vlan1

no ip address

shutdown

!

interface Vlan30

mac-address 0007.ec3c.3901

no ip address

!

!

!

!

line con 0

!

line vty 0 4

login

line vty 5 15

login

!

!

!

end

Switch#

switch 3 configuration

no ip domain-lookup

!

!

spanning-tree mode pvst

spanning-tree extend system-id

!

interface FastEthernet0/1

switchport mode trunk

!

interface FastEthernet0/2

switchport mode trunk

!

interface FastEthernet0/3

switchport mode trunk

!

interface FastEthernet0/4

switchport mode trunk

!

interface FastEthernet0/5

!

interface FastEthernet0/6

!

interface FastEthernet0/7

!

interface FastEthernet0/8

!

interface FastEthernet0/9

!

interface FastEthernet0/10

!

interface FastEthernet0/11

!

interface FastEthernet0/12

!

interface FastEthernet0/13

!

interface FastEthernet0/14

!

interface FastEthernet0/15

!

interface FastEthernet0/16

!

interface FastEthernet0/17

!

interface FastEthernet0/18

!

interface FastEthernet0/19

!

interface FastEthernet0/20

!

interface FastEthernet0/21

!

interface FastEthernet0/22

!

interface FastEthernet0/23

!

interface FastEthernet0/24

!

interface GigabitEthernet0/1

!

interface GigabitEthernet0/2

!

interface Vlan1

no ip address

shutdown

!

!

!

!

line con 0

!

line vty 0 4

login

line vty 5 15

login

!

!

!

end

Switch#

[Seb Rupik]

HI there,

From the router what is the output of sh ipv6 neigh ?

Looking at your config it is not clear how the devices are connected.  I can guess:

router| gi0/0  <---> gi0/1 |switch5| fa0/1 <---> PC

switch3 has trunk posts configured, but where is it connected?

cheers,

Seb.

[nadirbholah9920]

Router#show ipv6 neighbors
IPv6 Address Age Link-layer Addr State Interface
2001:4200:ACAD:1::20 57 0004.9ADA.0E54 REACH Gig
2001:4200:ACAD:2::20 298 000C.CF46.A38D REACH Gig
2001:4200:ACAD:5::1 94 0001.43B1.A501 REACH Gig0/1
FE80::201:43FF:FEB1:A501 81 0001.43B1.A501 REACH Gig0/1
.From the network 2001:4200:ACAD:1::20 and
2001:4200:ACAD:2::20 , can ping 2001:4200:acad:5:2 but i can't ping the interfacer fa0/3 2001:4200:acad:5:1.Another problem is that ,i have created 3 vlans,one for each network.on the network 2001:4200:acad:3::/64 which is link to a sub interface on router 2001:4200:acad:3::10,i can't ping this sub interface from the pc of the network.From the other network i can.On switch 3 all the fastethernet ports are trunks,and fa0/1on switch 5 is access.help me please.tHanking you in advANCE

[Seb Rupik]

From switch5 and the router what is the output of the sh spanning-tree vlan 30 ?

Also from switch3 what is the output of sh cdp neigh ?

[nadirbholah9920]

VLAN0030
Spanning tree enabled protocol ieee
Root ID Priority 32798
Address 0007.EC3C.398B
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32798 (priority 32768 sys-id-ext 30)
Address 0007.EC3C.398B
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20

Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Desg FWD 19 128.1 P2p
Gi0/1 Desg FWD 19 128.25 P2p

Switch#
switch3#show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID Local Intrfce Holdtme Capability Platform Port ID
Switch Fas 0/4 153 S 2960 Gig 0/1
vvipsw Fas 0/2 153 S 2960 Gig 0/1
financesw Fas 0/1 153 S 2960 Gig 0/2
Router Fas 0/3 153 R C1900 Gig 0/0
Router Fas 0/3 153 R C1900 Gig 0/0.10
Router Fas 0/3 153 R C1900 Gig 0/0.20
Router Fas 0/3 153 R C1900 Gig 0/0.30
switch3#

[Seb Rupik · Accepted solution]

What about sh spanning-tree vlan 30 on switch 3?

[nadirbholah9920]

switch3#sh spanning-tree vlan 30

No spanning tree instance exists.

switch3#

[nadirbholah9920]

Dear sir,from all the pcs i can ping the interface g0/1 on the router but not the interface fa0/1 on the layer 3 switch.can you help me?
C:\>ping 2001:4200:ACAD:5::2

Pinging 2001:4200:ACAD:5::2 with 32 bytes of data:

Reply from 2001:4200:ACAD:5::2: bytes=32 time<1ms TTL=255
Reply from 2001:4200:ACAD:5::2: bytes=32 time=2ms TTL=255
Reply from 2001:4200:ACAD:5::2: bytes=32 time<1ms TTL=255
Reply from 2001:4200:ACAD:5::2: bytes=32 time<1ms TTL=255

Ping statistics for 2001:4200:ACAD:5::2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 2ms, Average = 0ms

C:\>ping 2001:4200:ACAD:5::1

Pinging 2001:4200:ACAD:5::1 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 2001:4200:ACAD:5::1:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\>

[Harold Ritter]

Do you have routes to network 2001:4200:ACAD:1::/64, 2001:4200:ACAD:2::/64 and 2001:4200:ACAD:3::/64 on the L3 switch?

Regards,

[nadirbholah9920]

Hello sir,this is the routing config on the mls
ipv6 router ospf 100
router-id 1.1.1.1
log-adjacency-changes
!
ip classless
!
ip flow-export version 9
!
ipv6 route ACAD::/64 FastEthernet0/1 2001:4200:ACAD:5::1
!

[Harold Ritter]

Could you provide a "show ipv6 route" from the L3 switch and the whole configuration. The limited configuration you provided is not sufficient.

Regards,

[nadirbholah9920]

Router#show ipv6 ro
Router#show ipv6 route
IPv6 Routing Table - 10 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route, M - MIPv6
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
D - EIGRP, EX - EIGRP external
C 2001:4200:ACAD:1::/64 [0/0]
via GigabitEthernet0/0.10, directly connected
L 2001:4200:ACAD:1::10/128 [0/0]
via GigabitEthernet0/0.10, receive
C 2001:4200:ACAD:2::/64 [0/0]
via GigabitEthernet0/0.20, directly connected
L 2001:4200:ACAD:2::10/128 [0/0]
via GigabitEthernet0/0.20, receive
C 2001:4200:ACAD:3::/64 [0/0]
via GigabitEthernet0/0.30, directly connected
L 2001:4200:ACAD:3::10/128 [0/0]
via GigabitEthernet0/0.30, receive
C 2001:4200:ACAD:5::/64 [0/0]
via GigabitEthernet0/1, directly connected
L 2001:4200:ACAD:5::2/128 [0/0]
via GigabitEthernet0/1, receive
S ACAD::/64 [1/0]
via 2001:4200:ACAD:5::2, GigabitEthernet0/1
L FF00::/8 [0/0]
via Null0, receive
Router#

[Harold Ritter]

I meant a "show ipv6 route" from the device where 2001:4200:ACAD:5::1 is configured. It would also be helpful to have the full configuration for that device.

Regards,

[nadirbholah9920]

Switch#sh ipv6 route
IPv6 Routing Table - 6 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route, M - MIPv6
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
D - EIGRP, EX - EIGRP external
OI 2001:4200:ACAD:1::/64 [110/2]
via FE80::201:C7FF:FE01:B402, FastEthernet0/1
OI 2001:4200:ACAD:2::/64 [110/2]
via FE80::201:C7FF:FE01:B402, FastEthernet0/1
C 2001:4200:ACAD:5::/64 [0/0]
via ::, FastEthernet0/1
L 2001:4200:ACAD:5::1/128 [0/0]
via ::, FastEthernet0/1
S ACAD::/64 [1/0]
via 2001:4200:ACAD:5::1, FastEthernet0/1
L FF00::/8 [0/0]
via ::, Null0
Switch#