Add howto router RIP (dynamic routing).

1/PAR/notes/pt-docs.md

@@ -15,6 +15,17 @@ enable secret <password>
 username <usuario> privilege 1 password 0 <password>
 ```
 
+## Enrutamiento
+
+### Dinámico
+
+```
+router rip
+version 2
+no auto-summary
+network <ip-net>
+```
+
 ## VLANs
 
 ```