A(config-router)#network 192.168.1.0
A(config-router)#neighbor 10.10.10.2 remote-as
65000
A(config-router)#neighbor 10.10.20.2 remote-as
65500
A(config-router)#aggregate-address 172.0.0.0
255.0.0.0
A(config-router)#neighbor 10.10.10.2
prefix-list superred out
A(config-router)#exit
A(config)#ip prefix-list superred permit
172.0.0.0/8
A(config)#ip prefix-list superred description
solo permite ruta agregada