1) Call your ISP.
2) See if various traceroute sites make it to the same place.
3) See if the destination route is visible on looking glasses, etc.
4) Verify that the various traceroute sites can see you.
Rob wrote:
Hi,
I was wondering if anyone has any tools that they know of online or
usable from unix to narrow down the
extent of net problems.
Today, for instance I am having problems reaching gnu.org.
I have checked the internet weather sites, smoke ping sites,
netlantis.org [ which has some interesting bgp oriented stuff ],
and various traceroutes, looking glass sites, etc
Its frustrating not being able to determine the extent and source of the
problems.
Thanks for any ideas,
Rob
=============================================================
=== VisualRoute (R) 7.2a report on Jan 4, 2004 4:26:03 PM ===
=============================================================
Real-time report for www.gnu.org [199.232.41.10] (40% done)
Analysis: IP packets are being lost past network "Net Access
Corporation NAC-NETBLK01" at hop 17.
There is insufficient cached information to determine the next network
at hop 18.
=============================================================
=== VisualRoute (R) 8.0a report on Jan 4, 2004 4:22:43 PM ===
=============================================================
Real-time report for gnu.org [216.52.102.86] (90% done)
Analysis: IP packets are being lost past network "Internap Network
Services PNAP-8-98" at hop 12.
VisualRoute cannot determine the next network at hop 13. Node
216.52.102.129 at hop 12 in network "Internap Network Services
PNAP-8-98" reports "The destination host is unreachable".
=============================================================
=== VisualRoute (R) 7.2a report on Jan 4, 2004 4:18:49 PM ===
=============================================================
Real-time report for www.gnu.org [199.232.41.10] (40% done)
Analysis: IP packets are being lost past network "Net Access
Corporation NAC-NETBLK01" at hop 17.
There is insufficient cached information to determine the next network
at hop 18.
=============================================================
=== VisualRoute (R) 8.0a report on Jan 4, 2004 4:21:04 PM ===
=============================================================
Real-time report for www.gnu.org [199.232.41.10] (90% done)
Analysis: Connections to HTTP port 80 on host 'www.gnu.org' are
working, but UDP packets are being
blocked past network "Cambridge Entrepreneurial Network CENT-CIDR-01"
at hop 25. It is a HTTP server
(running Apache/1.3.26 (Unix) Debian GNU/Linux mod_python/2.7.8
Python/2.1.3).
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| Hop | %Loss | IP Address | Node Name |
Location | Tzone | ms | Graph |
Network |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 0 | | 203.94.129.69 | webms1.brd.net.au |
- | | | |
Uecomm |
| 1 | | 203.43.193.220 | gw-router.brd.net.au |
- | | 0 | x | Telstra
Internet |
| 2 | | 203.94.129.25 | gw1-uecomm.brd.net.au |
- | | 0 | x |
Uecomm |
| 3 | | 203.94.128.41 | fa0-1-2.que31-cs1.core.uecomm.net.au |
- | | 0 | x |
Uecomm |
| 4 | | 203.222.35.229 | sl-gw1-mel-6-0-0.sprintlink.net |
- | | 13 | x | Sprintlink Asia
Pacific Region |
| 5 | | 203.222.33.18 | sl-bb21-syd-1-0.sprintlink.net |
Sydney, NSW, Australia | -01:00 | 0 | x | Sprintlink Asia
Pacific Region |
| 6 | | 144.232.8.130 | sl-bb21-sj-3-2.sprintlink.net |
San Jose, CA, USA | -19:00 | 156 | x | Sprint
SPRINT-INNET9 |
| 7 | | 144.232.3.161 | sl-bb21-sj-14-0.sprintlink.net |
San Jose, CA, USA | -19:00 | 156 | x | Sprint
SPRINT-INNET9 |
| 8 | | 144.232.9.58 | sl-st20-sj-13-0.sprintlink.net |
San Jose, CA, USA | -19:00 | 164 | x- | Sprint
SPRINT-INNET9 |
| 9 | | 208.173.54.69 | bpr1-so-3-0-0.SanJoseEquinix.cw.net |
San Jose, CA, USA | -19:00 | 156 | x | Cable & Wireless
CW-10BLK |
| 10 | | 208.173.54.66 | dcr1-so-4-3-0.SantaClara.cw.net |
Santa Clara, CA, USA | -19:00 | 156 | x | Cable & Wireless
CW-10BLK |
| 11 | | 208.172.146.100 | dcr2-loopback.SantaClara.cw.net |
Santa Clara, CA, USA | -19:00 | 156 | x | Cable & Wireless
CW-10BLK |
| 12 | | 206.24.221.241 | bpr2-ge-6-3-0.PaloAltoPaix.cw.net |
Palo Alto, CA, USA | -19:00 | 156 | x | Cable & Wireless
CW-05BLK |
| 13 | | 206.24.241.246 | - |
... | | 157 | x | Cable & Wireless
CW-05BLK |
| 14 | | 64.200.149.13 | sntcca1wcx2-pos0-0.wcg.net |
- | | 234 | x- | Williams
Communications, Incorporated WCG-BLK-1 |
| 15 | | 64.200.151.94 | snfcca1wcx2-pos4-0-oc48.wcg.net |
San Francisco, CA, USA | -19:00 | 2051 | x- | Williams
Communication IP Services WLCO-SNTCCA1INTERN-30 |
| 16 | | 64.200.199.78 | snfcca1wcx3-oc48.wcg.net |
San Francisco, CA, USA | -19:00 | 235 | x- | Williams
Communication IP Services WLCO-SNFCCA1INTERN-30 |
| 17 | | 64.200.240.93 | dnvrco1wcx2-pos3-0.wcg.net |
- | | 235 | x- | Williams
Communication IP Services WLCO-CROSSINTERN-30-2 |
| 18 | | 64.200.210.21 | brvwil1wcx2-pos13-0.wcg.net |
- | | 2003 | x | Williams
Communication IP Services WLCO-CROSSINTERN-30-1 |
| 19 | | 64.200.236.18 | brvwil1wcx3-pos12-0-1-a0.wcg.net |
- | | 234 | x | Williams
Communication IP Services WLCO-CHCGIL1-INTERNAL-30 |
| 20 | | 64.200.240.38 | nycmny2wcx3-oc48.wcg.net |
New York, NY, USA | -16:00 | 281 | x- | Williams
Communication IP Services WLCO-CROSSINTERN-30-2 |
| 21 | | 64.200.87.77 | nycmny2wcx2-oc48.wcg.net |
New York, NY, USA | -16:00 | 240 | -x | Williams
Communication IP Services WLCO-NYCMNY2INTERN-30 |
| 22 | | 64.200.210.97 | hrndva1wcx2-pos5-0.wcg.net |
Herndon, VA, USA | -16:00 | 234 | x | Williams
Communication IP Services WLCO-CROSSINTERN-30-1 |
| 23 | | 64.200.240.194 | washdc5lcx1-pos5-0.wcg.net |
Washington, DC, USA | -16:00 | 234 | x | Williams
Communication IP Services WLCO-CROSSINTERN-30-2 |
| 24 | | 64.200.88.86 | washdc5lcx1-nexgen-gige.wcg.net |
Washington, DC, USA | -16:00 | 234 | x | Williams
Communication IP Services WLCO-HRNDVA1INTERN-30-2 |
| 25 | | 199.232.44.54 | qcy-m20-at3-3-0.gnaps.net |
... | | 248 | -x | Cambridge
Entrepreneurial Network CENT-CIDR-01 |
| ... | | |
| | | |
| |
| ? | | 199.232.41.10 | www.gnu.org |
... | | | | Cambridge
Entrepreneurial Network CENT-CIDR-01 |
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Please include the email address which you have been contacted with.
------------------------ANNOUNCEMENT---------------------------------
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** The industry's ISP and WISP event ** www.ispcon.com **
** 10 years experience illuminating the market's future **
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