I have this topology and I don't know why the pings don't work properly across networks, and even in the same network for vlan 10 and 20.Topology Circled with black are the vlans.
Every device is properly configured with an ipv6 address and a gateway (SW and PCS) The topology works perfectly for IPV4. I also ran ipv6 rip OurRip enable and ipv6 enable on each interface of every router. (Gi0/2.30,Gi0/2.40,Gi0/2.99 for the right-most router and vlan 10 and 20 for the MSW for example) For pings from the toolbox PC to the vlan 10 PC I get Destination host unreachable. From the vlan 10 pc to the upper vlan 10 switch I get request timed out. From vlan 40 PC to vlan 30 PC pings work, but to the vlan 30 SW I get request timed out. Sorry if the post isn't too professional but I truly have no idea what the problem is.
