the interface lo0 at each router must be seen as an internal eigrp prefix by all

lixiaoqing2008

各位做过LAB1的大神，请问需求中有句话"the interface lo0 at each router must be seen as an internal eigrp prefix by all other routers"，到底表达的是什么意思？需要作出什么相应的配置来满足？