what hapeen we we configure default root on the router
which is conected by isp
supoese there are two router r1 is conected throug isp and
and by s0 r1 is conexted to r2
if we apply degault root on r1 what will happen

Answer Posted / jitendera kumar sinha

no shahin ankur is not asking about how to configure deault
root ankur is asking that what hapeen when we implemenr
default root to that router which is directly coected to
the isp router.
you have just expalinf that how to implement but what
happen after that u donot explain
so here is explanation

on the router which is coneced to isp we never implemet
default root

now question is why

answer is so simple it produse routing loop
now question arises how
let we implement deafult root os the router which is
directly conected to router now any packet comes from isp
that router forward to r2 whaich is another router
another router r2 doesnot have any entry of that ip address
but have an enrtry about deafult root then it will agin
send it to r1 now r1 have default root confrigation so he
again sent it toi the r2 and process contute

so one thing always remebr the router which is directly
conected to isp we never implement default

thenquestion is what routing protocol should we implemented
on that router

it is highly recomneded that you should confihure staic
routing on that router dirctly conected to isp router

thansk
help it will help you both

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