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IPv6 serial interface configuration not working

Jeiky1
Level 1
Level 1

I am configuring IPV6 in GNS3 lab environment for studying and when I configured the IP address, in Fa0/0 and S0/0 on both routers (R1 and R4) the Serial interface goes UP/UP for a few seconds and then it goes UP/Down and I am unable to ping the other side of the Serial Interface. I realized the S0/0 was obtaining the same Link Local IP than FA0/0; therefore, I manually change the link Local IP, but it did not help. Please, help me with this. Your help will be greatly appreciated. I tried the same configuration using IPV4 and everything works fine. 

IOS: (C2691-ADVENTERPRISEK9-M), Version 12.4(25d)

 

R1>sh ipv int bri

FastEthernet0/0            [up/up]

    FE80::C200:99FF:FEA0:0

    2001:11AA::1

Serial0/0                  [up/down]

    FE80::C216:C4FF:FEE4:0

    2001:22AA::1

INTERFACE CONFIG R1

interface FastEthernet0/0

 no ip address

 duplex auto

 speed auto

 ipv6 address 2001:11AA::1/64

!

interface Serial0/0

 no ip address

 ipv6 address 2001:22AA::1/64

 ipv6 address FE80::C216:C4FF:FEE4:0 link-local

 ipv6 enable

 clock rate 2000000

GNS3 and IPV6 lab configuration

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