Solved

BGP looking glass

Posted on 2012-12-24
3
356 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

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Layer 2 versus layer 3 10 91
Microsoft Surface Pro 4 networking 4 32
md5 password 3 64
Setting up static routes to  sonicwll 4 46
If your business is like most, chances are you still need to maintain a fax infrastructure for your staff. It’s hard to believe that a communication technology that was thriving in the mid-80s could still be an essential part of your team’s modern I…
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
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…

831 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