1 REDISTRIBUTIONTHE NETWORK COMMAND IS ONE WAY TO ADVERTISE YOUR NET...

The network command is one way to advertise your networks via BGP.

Another way is to redistribute your IGP (IGRP, OSPF, RIP, EIGRP, etc.)

into BGP. This sounds scary because now you are dumping all of your

internal routes into BGP, some of these routes might have been learned

via BGP and you do not need to send them out again. Careful filtering

should be applied to make sure you are sending to the internet only

routes that you want to advertise and not everything you have. Let us

look at the example below.

RTA is announcing 129.213.1.0 and RTC is announcing 175.220.0.0. Look

at RTC’s configuration:

RTD