Need one quick help

Hello, what is the meaning of Null0 i IP route command

ex: ip route 172.16.255.0 255.255.255.0 Null0 ( it should be next hop or interface). Actually I encounter this before but I just forgot what's the use of this Null0.

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Comments

david_r

long response deleted. Cisco does a much better job of explaining it.

http://www.cisco.com/en/US/tech/tk364/technologies_tech_note09186a00801c9a6e.shtml

Ching01

Okay thanks for the link but I just want to know a brief explanation right now no time to read the entire doc maybe later.

EdTheLad

Ching01 wrote:

Okay thanks for the link but I just want to know a brief explanation right now no time to read the entire doc maybe later.

huh? where do you think you are the ccna forum?

Ching01

huh? where do you think you are the ccna forum?

Okay thanks anyway, if you don't want to help me.

Humper

Ching01 wrote:

huh? where do you think you are the ccna forum?

Okay thanks anyway, if you don't want to help me.

READ!!

Danman32

In a nutshell, the null interface that goes nowhere. It is a great way to redirect packets to oblivion.

david_r

Used to prevent routing loops when you have summarized routes and default routes.

Ching01

ed_the_lad Posted: Thu Sep 07, 2006 5:21 am Post subject:

Ching01 wrote:
Okay thanks for the link but I just want to know a brief explanation right now no time to read the entire doc maybe later.

huh? where do you think you are the ccna forum?

I just ask for a little help and if you don't want to help better not to answer my post. I am configuring my LAB, that's why I am in a hurry and posted "NO time to read maybe later."

The used of a forum is to share ideas with common interest and also can't you READ the subject "Need a quick help".

wildfire

Ok I dont normaly express my opinion on these things, but had you read the link you would see it leads to a simple and comprehensive answer on the first line!

While this forum is for helping and sharing its not for people to do research on your behalf and post a simple answer becuase you cant be bothered or lack of time. The CCNP track requires time and dedication, with that reading the DocCD is fundamental! It wasnt like someone posted a link to Cisco.com they gave you the exact info you needed.

David_r even admitted Cisco explains it better than he can, and you still counld make the effort to even open the link.

While I dont want to discourage anyone from signing up to this forum, I like to think people have initally made the effort and generally need help to understand a topic or concept!

Just my 2c !

Ching01

Okay, end of this topic.