telnet登录MSR3620路由器 跳过输入用户名

登录到路由器后，跳过了输入用户名，直接让输入密码。请问怎么配置才能先进入输入用户名再输入密码？

配置如下：

# line class aux user-role network-admin # line class tty user-role network-operator # line class vty user-role network-operator set authentication password hash $h$6$VZxysjNo/OgjiWkk$IoUQiLkyfobg6KOVpRuMN3hI3QM0yloAoMWN4/LgvUESfE8fEjuHQkyk7+B87NnjfKw76IbTQk0j69LB9zQX/g== # line aux 0 user-role network-admin # line vty 0 4 authentication-mode scheme user-role network-admin set authentication password hash $h$6$rkP+1GthhivELOdJ$NUnE0GRhgUqMpSceCRopKDXVPla2ckU3AiVN4za2BHMiDfyXeEFGqcL3vdHAb//p0rJI7docalYKSFSt30VU9Q== # line vty 5 63 user-role level-15 user-role network-operator set authentication password hash $h$6$cJaC2AxgStNNaePs$CvuOPxAiYjDzgVwSjpmbIUcGgvMdkjn6tYjmmJfwcouD14w1QYEH0659d+GiZlw55sY/ZUx/ddRfI+CP6eYqMA== #

# user-group system # local-user 123 class manage authorization-attribute user-role network-operator # local-user admin class manage password hash $h$6$v1QSTa1SdUl59G/3$T7gONnNsH0vbaK0M6X5EapaNUHraUNjliaUD+/d/6MlNEEBe1QIL3if70XN460+IV02KGvsNjy8b8x9kl6PUwg== service-type ssh telnet authorization-attribute user-role network-admin # local-user root class manage password hash $h$6$4sAB9TBCnkocMqrR$cBKC+HuZQOk7ItqD8OuRWxL46rtMsrSi+bXjPgS3puNDUag0dX07MNnlJURFoQYP1v1sb9w13OwTO+9Le1qNNA== access-limit 5 service-type ssh authorization-attribute user-role network-operator # local-user test class manage password hash $h$6$x6O7BxzMm8hh7Ne2$FvMUuvlEA4k3Vk1LxbKmQNt+XYSxCsasT+jXtatN11sAPmaB2HTFINV4+HL26VnWQQNuKT2akMex0s4klsE0YQ== service-type ssh authorization-attribute user-role level-3 authorization-attribute user-role network-operator #