Daughter Routes, Angular 5

I have a component, where it receives only one parameter in its route, like this:

{path: ':modelo', component: BaseNumerica, 

This component, in turn, has 3 child routes, described as follows:

{path: ':modelo', component: BaseNumerica, 
        children:  [
            {path: '', redirectTo: 'teste1', pathMatch: 'full'},
            {path: 'teste1', component: Personal},
            {path: 'teste2', component: Dealers},
            {path: 'teste3', component: Agendamento}
        ]},

I'm having difficulty accessing the 'test2' route, by the component of route 'test1', that is, in my component test1.html I have the following call:

[routerLink]="['teste2']"

and the following error is displayed:

Error: Cannot match any routes. URL Segment: 'modelo/teste1/teste2'

This error does not happen if I make the same button in the 'BaseNumerica' component. What should I do?