MX problems

Tue May 19 23:49:54 UTC 2009

I recall reading in Syracuse's minutes (I'm a former grad) that they were
going to institute port 25 blocking on campus.
http://sunews.syr.edu/campusannouncements_details.cfm?id=5395

Frank

-----Original Message-----
From: Polar Humenn [mailto:polar.humenn at gmail.com] 
Sent: Tuesday, May 19, 2009 5:44 PM
To: nanog at nanog.org
Subject: MX problems

I'm in Syracuse NY, and I'm having problems getting sendmail to get to MX
servers, with the errors of "No Route to Host" or "Connection timed Out".
Apparently this is been happening for over 5 days. I can send mail within
Syracuse University, but as soon as I venture out nothing. Traceroute seems
to loose it after about the 9 or 10th hop.

It seems that I can get to almost any website, but tracerouting or pinging
these MX servers is not happening.

Is there anything going on, or at least something that started 5-7 days ago?

I find the same problem from within Syracuse Univeristy to my RoadRunner
account at home (which does not pass through the university routers). I only
noticed it from the university since thats where I usually send my email
through. Like I would no have been able to post to this list

>From my home machine:
> traceroute s0.nanog.org
traceroute to s0.nanog.org (198.108.95.20), 30 hops max, 60 byte packets
 1  192.168.99.1 (192.168.99.1)  0.211 ms  0.257 ms  0.302 ms
 2  10.217.224.1 (10.217.224.1)  13.754 ms  13.855 ms  14.291 ms
 3  gig2-2.syrcnysyr-rtr01.nyroc.rr.com (24.92.231.138)  18.442 ms  22.701
ms  26.908 ms
 4  gig1-1-0.syrcnyflk-rtr02.nyroc.rr.com (24.92.231.54)  31.279 ms  31.454
ms  31.591 ms
 5  ge-4-3-0.albynywav-rtr03.nyroc.rr.com (24.24.7.53)  37.429 ms  37.604
ms  37.779 ms
 6  ae-5-0.cr0.nyc30.tbone.rr.com (66.109.6.74)  41.329 ms  18.241 ms
22.192 ms
 7  ae-1-0.pr0.nyc20.tbone.rr.com (66.109.6.163)  27.472 ms  19.542 ms
23.419 ms
 8  te1-4.mpd01.jfk05.atlas.cogentco.com (154.54.13.185)  28.070 ms  32.824
ms  35.822 ms
 9  te9-3.ccr01.jfk02.atlas.cogentco.com (154.54.3.165)  40.796 ms  40.549
ms te2-4.ccr01.jfk02.atlas.cogentco.com (154.54.6.49)  40.958 ms
10  te2-4.mpd01.bos01.atlas.cogentco.com (154.54.5.249)  48.704 ms  47.549
ms  48.468 ms
11  te2-2.ccr01.ord01.atlas.cogentco.com (154.54.6.154)  57.836 ms
te8-8.mpd01.ord01.atlas.cogentco.com (154.54.24.54)  58.063 ms
te2-2.mpd01.ord01.atlas.cogentco.com (154.54.6.18)  46.700 ms
12  vl3488.mpd01.ord03.atlas.cogentco.com (154.54.5.26)  56.905 ms
te3-4.mpd01.ord03.atlas.cogentco.com (154.54.6.206)  56.144 ms
vl3488.mpd01.ord03.atlas.cogentco.com (154.54.5.26)  45.245 ms
13  Merit.demarc.cogentco.com (38.112.7.10)  44.512 ms
Merit.demarc.cogentco.com (66.28.21.234)  38.385 ms
Merit.demarc.cogentco.com (38.112.7.10)  40.305 ms
14  tenge0-0-0-0x76.aa2.mich.net (198.108.23.10)  43.637 ms  42.601 ms
43.902 ms
15  198.108.22.186 (198.108.22.186)  48.455 ms  51.436 ms  44.070 ms
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

Any ideas?
Cheers,
-Dr Polar