I have a very simple topology, where 4 routers use IPV6 and RIP, there aren't problems and all devices have connectivity. The issue is if I add another router this time using IPV4 for clients.
I tried to add a tunnel but maybe I'm doing it wrong:
ipv6 address 2000::1/64
ipv6 rip Net1 enable
tunnel source GigabitEthernet0/0
tunnel destination 10.0.0.1
tunnel mode ipv6ip
Do I need to double stack everything or is it possible to solve with a tunnel?