• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 276
  • Last Modified:

Parent Router

Is their a way to programatically find the parent router of an ip address.  I am writing a program that requires a ping or to know the parent router for a given ip address.  I would like to see some code or sample.

Thanks in advance

1 Solution
Get the source code for TRACEROUTE.  It's in every Linux or FreeBSD distribution out there.  There is no guarantee that a "parent" router is always the same since routing is a dynamic thing and packets can take different paths at different times.  But using the technique in traceroute, you will get _A_ route from A to B.  For any IP in the list, the next one will be a "parent".
ramrocketAuthor Commented:
hance, that is the problem, routing is dynamic however that is ok with my requirements.  Where do I get traceroute?  What do you mean the next one will be a parent?
>>>Where do I get traceroute?  

It's in every Linux or FreeBSD distribution out there.  

>>What do you mean the next one will be a parent?

TRACEROUTE gives you a list of IP addresses, one after the other in sequence.  That is the ROUTE to the endpoint.

Try it, you'll see.  If you have Windows NT or 2000 there is TRACERT that does the same thing.
Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

ramrocketAuthor Commented:
jhance, will these traceroute work with NT?  Can you give a url to download the source?
ramrocketAuthor Commented:
jhance, this code does not compile using vc6.0 under winnt2000.  

>>>If you have Windows NT or 2000 there is TRACERT that does the same thing.

can you point me where the source to tracert.  I need this to work on an nt machine.  I am not doing development under unix or its flavor.

Sorry.  You expanded the scope of this question well beyond its original parameters.  You asked for an explanation of HOW to do this and for a source code sample and I've provided both!  

Now you want a complete VC++ 6.0 application for Windows 2000.

ramrocketAuthor Commented:
jhance, I apologize for the misunderstanding.  I am not requiring a complete vc6.0 app for win2k.  Like I said in my original query, I am writing a program that need to incorporate this functionality.  The source code that you point me to is not integratable with my program and therefore is useless to me.  Please work with me on this.  I am willing to increase the points but I need something that is usable.


You logged in recently.  This appears to have been overlooked, or perhaps due to some of the system problems we had for a brief time with Email notifications, your last comments may not have been received by the participating experts.  PLEASE RETURN here and accept/grade this if it helped you or provide additional information to ensure that the need still exists today and nothing further has changed to get you what you need as quickly as possible.

This remains open today, awaiting your next action.


Community Support Moderator @ Experts Exchange
I think you forgot this question. I will ask Community Support to close it unless you finalize it within 7 days. Unless there is objection or further activity,  I will suggest to accept "jhance" comment(s) as an answer.

If you think your question was not answered at all, you can post a request in Community support (please include this link) to refund your points.
The link to the Community Support area is: http://www.experts-exchange.com/jsp/qList.jsp?ta=commspt

Accepted recommendation by:

CS Admin @ EE
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now