Solved

BGP looking glass

Posted on 2012-12-24
3
344 Views
Last Modified: 2013-01-10
I did a traceroute on an IP public address through the Sprintlink looking glass (www.sprint.net/lg/) and at the end I saw my IP address listed 3 times (see below). What does it mean?

...
8 so-0-0-0-2.pitbpamaw03cr01.paetec.net (64.80.253.237) [AS 1785] [MPLS: Label 16002 Exp 0] 72 msec 72 msec 84 msec
9 ge-9-0-0.PITBPAMAW03PE01.paetec.net (169.130.100.88) [AS 1785] 68 msec 68 msec 68 msec
10 uslec-71.16.37.202.cust.uslec.net (71.16.37.202) [AS 1785] 72 msec 68 msec 72 msec
11 my_public_ip_address [my_AS] 68 msec 68 msec 72 msec
12 my_public_ip_address [my_AS] 68 msec 68 msec 72 msec
13 my_public_ip_address [my_AS] 68 msec 68 msec 72 msec
0
Comment
Question by:biggynet
  • 2
3 Comments
 
LVL 62

Accepted Solution

by:
btan earned 500 total points
ID: 38719720
suspecting loops -e.g. routing loop indicated such that one or more routers being repeated several times within the traceroute. This discussion may be of interest

https://supportforums.cisco.com/thread/2174484

Another but having the repeated interleaved which make is more probably looping issue and confirmed with ping seeing error message will show “TTL expired in transit”.

http://www.rracuares.com/2010/03/04/ping-and-traceroute-routing-loop-solved/
0
 

Author Comment

by:biggynet
ID: 38722658
Thanks for the links. I will take a look at them. I am trying to understand if it is really a loop because the same ip address repeated itself 3 times through the traceroute.
0
 
LVL 62

Expert Comment

by:btan
ID: 38722776
But eventually the result should be successful in completing the traceroute else there  would be some faults along the way
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In the hope of saving someone else's sanity... About a year ago we bought a Cisco 1921 router with two ADSL/VDSL EHWIC cards to load balance local network traffic over the two broadband lines we have, but we couldn't get the routing to work consi…
Meet the world's only “Transparent Cloud™” from Superb Internet Corporation. Now, you can experience firsthand a cloud platform that consistently outperforms Amazon Web Services (AWS), IBM’s Softlayer, and Microsoft’s Azure when it comes to CPU and …
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now