Packet Tracer IPV6 OSPF ROUTING (incorrect amount of networks)

[anonymoushe]

Hi guys, I'm having trouble configurating the OSPF for ipv6.
It happens that all my router have lesser networks that it supposed to have.
command lines as below, same goes to another 5 more routers

R1>enable

R1#config term

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#ipv6 router OSPF 1

%OSPFv3-4-NORTRID: OSPFv3 process 1 could not pick a router-id, please configure manually

R1(config-RTR)#router-id 1.1.1.1

R1(config-RTR)#int fa0/0

R1(config-if)#ipv6 OSPF 1 area 0

R1(config-if)#int fa0/1

R1(config-if)#ipv6 OSPF 1 area 0

R1(config-if)#int e1/1

R1(config-if)#ipv6 OSPF 1 area 0

R1(config-if)#int e1/0IPv6, IPv6 Configuration, Other IPv6

R1(config-if)#ipv6 OSPF 1 area 0

R1(config-if)#exit

[Harold Ritter]

Hi @anonymoushe ,

Could you please attach a copy of your zipped .pkt file.

Regards,

[anonymoushe]

Helloo here it is

[Harold Ritter]

Hi @anonymoushe ,

Can you be more specific about what you mean by "all my router have lesser networks that it supposed to have."?

Regards,

[anonymoushe]

Hello,

I hv 14 networks here in total, 

The R1 has 4 directly connected networks, so it needs 10 more ospf routing networks, but when i check back the ipv6 route ospf, is lesser than 10 that it supposed to hv which causes some router cannot ping tgt.

This issue same goes to another 5 routers.

[Harold Ritter · Accepted solution]

Hi @anonymoushe ,

The issue could be related with packet tracer. I just configured all the transit links as ospf point to point links (ipv6 ospf network point-to-point) and reloaded the simulation and the number of networks seem to be fine now.

One more thing. According to the specifications, you should not be using EUI-64 for any of the interfaces. You should rather be using  ::1 for R1, ::2 for R2, etc for all the transit and leaf interfaces.

Regards,

[anonymoushe]

I have alr included all the interfaces as well.

[vishalbhandari]

The issue lies with the OSPFv3 process not selecting a Router-ID automatically because IPv6 OSPF requires either a manually configured Router-ID or an active IPv4 address on the router. You've correctly set the Router-ID manually with router-id 1.1.1.1, so that part is fine.

For the problem with lesser networks being advertised, ensure that:

1. Each interface participating in OSPFv3 has an active IPv6 address configured.
2. The interfaces are up and not administratively down.
3. Use the command show ipv6 ospf interface to verify that OSPFv3 is active on all intended interfaces.

If an interface is missing from the OSPF database, it might not have an IPv6 address, or the OSPF area might not have been assigned correctly. Double-check each step and verify with show ipv6 ospf neighbor and show ipv6 ospf to confirm the OSPF process and neighbors.

[Harold Ritter]

Hi @vishalbhandari ,

This specific issue is related to Packet Tracer. Configuring the transit links as p2p solved the issue.

Regards,