Cisco CCNP / BSCI Exam Tutorial: Ten IP Routing Details You need to know!

To pass the BSCI exam and earn your CCNP, you've taken a lot of detail in mind. It is easy to overlook the "simpler" protocols and services such as static routing protocols and distance vector. Thus, here is a quick overview of some of the details you need to know to succeed in the exam room and real networks!

If packages are to be forwarded, the routing table for analyzing longest prefix match when multiple paths with the same prefix length, the route with the presentlower AD preferred. If there is even more valid paths, with equal-cost load-sharing is in force.

The ip route command is used to route the command ip route 0.0.0.0 0.0.0.0 static created a default static route.

A static route with a next-hop IP address is an announcement of one, while a static route has a local interface to go out with an announcement of zero.

A floating static route is a static route with a higher than that of dynamic routing protocols running on the ADRouter so that the static route can only be used if the routing protocol goes down.

On-Demand Routing (ODR) is only useful in a hub-and-spoke network. The rays actually become stub router. ODR uses Cisco Discovery Protocol (CDP) to send information on the fly.

To propagate a default route with IP routing, the command defaults to the IP network. To do this with IP routing disabled, use the ip default-gateway. You can also deploy a static route in most protocolsbut not IGRP. IGRP does not understand a static route to 0.0.0.0.

The ip helper-address command takes certain broadcasts and translates then unicast to the router can forward them. These default ports are:

TIME, port 37

TACACS, port 49

DNS, port 53

BOOTP / DHCP server, port 67

BOOTP / DHCP Client, port 68

TFTP, port 69

NetBIOS name service, port 137

NetBIOS datagram service, port 138

To use other ports namesThe ip forward-protocol command. Each of these ports by default and no ip forward-protocol command.

ICMP Router Discovery Protocol (IRDP) is home to listen to multicast Hellos from routers, allowing discovery of host-router. HSRP router, virtual router, home to think about is a router itself. Both protocols help networks section of a functional router quickly when their primary router fails.

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