HelloIn have 3 routers connected using global ipov6 in router 0, connected to a PC, I have the subnet 2001:db8:d955:1008::/64 between router 0 and 1 serial connection with IPs 2001:ffff:eeee:aaaa::1/64 --> r02001:ffff:eeee:aaaa::2/64 --> r1 between...