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Trace Hits Destination Multiple times

  Hi,

I am tracing 2-3 US sites from our MPLS link (to US)   and getting below results. Destination is repeating multiple times. What could be the issue and how can it effect the performanse of the site.

Tracing route to 12.195.6.15 over a maximum of 30 hops

  1     3 ms     1 ms     1 ms  10.164.X.1
  2    <1 ms    <1 ms    <1 ms  10.164.X.37
  3     4 ms     3 ms     3 ms  10.164.X.129
  4   216 ms   218 ms   216 ms  10.255.140.45
  5   223 ms   223 ms   223 ms  10.255.140.46
  6   223 ms   223 ms   223 ms  10.255.128.67
  7   226 ms   225 ms   224 ms  12.195.6.15------Destination
  8   225 ms   225 ms   224 ms  12.195.6.15
  9   225 ms   226 ms   225 ms  12.195.6.15
10   226 ms   225 ms   229 ms  12.195.6.15
11   270 ms   273 ms   270 ms  12.195.6.15
12   275 ms   274 ms   288 ms  12.195.6.15
13   269 ms   269 ms   269 ms  12.195.6.15

Trace complete.

Tracing route to 10.120.168.15 over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  10.164.x.1
  2    <1 ms    <1 ms    <1 ms  10.164.x.37
  3     6 ms     3 ms     4 ms  10.164.x.129
  4   216 ms   215 ms   217 ms  10.255.140.45
  5   223 ms   223 ms   223 ms  10.255.140.46
  6   224 ms   224 ms   224 ms  10.255.128.66
  7   226 ms   225 ms   228 ms  10.120.168.15----Destination
  8   228 ms   226 ms   226 ms  10.120.168.15
  9   226 ms   230 ms   225 ms  10.120.168.15
10   225 ms   226 ms   228 ms  10.120.168.15

Trace complete.

1 REPLY

Trace Hits Destination Multiple times

Hi Manoj,

I do not see this as a problem nor do I feel that it would affect any performance. The explanation for the seeing the same IP multiple hops till the trace is completed as below.

The first time you see the IP 10.120.168.15 in the trace route is when the firwall is hit. And the number of hops that you see the same IP is the number of hops the actual server is away from the firewall.

You are seeing the same IP address as all the return echo replies from each device between the firewall & the actual server are being translated due to the overload of the outside interface on the firewall.

So this is something normal & nothing to be worried about.

***********Plz do rate this post if you found it helpful*************************


Thanks & Regards,


Vignesh R P

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