what the cause?

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1

Hi guys,

Can you help me correct my our router? please see the details below.
BTW, our ISP told me that there’s no problem with their side but still i can’t find any of my configuration that causing this.

Looking forward for your help thanks your.

./fRank

#traceroute nanog.org

Type escape sequence to abort.
Tracing the route to nanog.org (198.108.1.50)

1 61.9.31.21.mozcom.net (61.9.31.21) [AS 6163] 4 msec 4 msec 4 msec
2 fe0-0.peak-7206-border-2.mozcom.net (61.9.0.243) [AS 6163] 4 msec 0 msec 0 msec
3 203.177.211.41 [AS 6163] 4 msec 4 msec 4 msec
4 203.177.59.5 [AS 6163] 8 msec 4 msec 4 msec
5 203.177.31.166 [AS 6163] 4 msec 8 msec 4 msec
6 203.177.254.185 [AS 6163] 180 msec 176 msec 180 msec
7 gi1-16.ccr01.lax04.atlas.cogentco.com (38.104.82.129) [AS 6163] 184 msec 188 msec 188 msec
8 te4-3.mpd01.lax01.atlas.cogentco.com (154.54.24.69) [AS 6163] 352 msec
te3-3.mpd01.lax01.atlas.cogentco.com (154.54.24.61) [AS 6163] 196 msec 180 msec
9 te2-4.mpd01.iah01.atlas.cogentco.com (154.54.5.101) [AS 6163] 216 msec
te8-2.mpd01.iah01.atlas.cogentco.com (154.54.3.37) [AS 6163] 216 msec
te2-4.mpd01.iah01.atlas.cogentco.com (154.54.5.101) [AS 6163] 212 msec
10 te8-3.mpd01.dfw01.atlas.cogentco.com (154.54.2.14) [AS 6163] 220 msec
te3-2.mpd01.mci01.atlas.cogentco.com (154.54.5.218) [AS 6163] 228 msec
te7-3.mpd01.dfw01.atlas.cogentco.com (154.54.5.129) [AS 6163] 220 msec
11 te7-4.mpd01.ord01.atlas.cogentco.com (154.54.2.190) [AS 6163] 240 msec
te8-2.mpd01.mci01.atlas.cogentco.com (154.54.5.126) [AS 6163] 232 msec
te7-3.mpd01.mci01.atlas.cogentco.com (154.54.3.18) [AS 6163] 232 msec
12 vl3489.mpd01.ord03.atlas.cogentco.com (154.54.5.18) [AS 6163] 232 msec
te2-1.mpd01.ord01.atlas.cogentco.com (154.54.2.234) [AS 6163] 228 msec
te2-3.mpd01.ord01.atlas.cogentco.com (154.54.7.137) [AS 6163] 232 msec
13 *
vl3489.mpd01.ord03.atlas.cogentco.com (154.54.5.18) [AS 6163] 368 msec 436 msec
14 Merit.demarc.cogentco.com (38.112.7.10) [AS 6163] 228 msec *
fe0-0-0x43.michnet10.mich.net (198.108.22.243) [AS 6163] 240 msec
15 fe0-0-0x43.michnet10.mich.net (198.108.22.243) [AS 6163] 240 msec
nanog.org (198.108.1.50) [AS 6163] 240 msec
fe0-0-0x43.michnet10.mich.net (198.108.22.243) [AS 6163] 240 msec

2

all the AS numbers are the same

3

fsmendoza@gmail.com (Frank) wrote:

all the AS numbers are the same

Yes, one can see that.

Looks like you only get a default from your transit.

Background: The AS number in [brackets] is determined by a
lookup in the router's RIB. So if you only have the default
(from AS6163 as it seems), the lookup result will always be
6163.

Elmar.

4

all the AS numbers are the same

Are you running this trace from a BGP speaking router on your network? I'm also going to guess you're not taking full BGP routes from your upstreams?

What exactly do you think is broken?

As for the dropped traceroute probes, are you doing any sort of filtering of ICMP that could account for that? Note that dropped traceroute probes should _not_ be equated to packet loss without further investigation.

jms

5

Thank you guys for your help.