RE: Tracert timeout on first hop

Fox, Thomas L. ( tfox@foxberry.com )
Sat, 26 Apr 1997 09:14:46 -0400

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I seem to recall something from the Livingston list that Microsoft's
ICMP was different than anyone else's (i.e., non industry standard)
and the PMs simply didn't respond in a manner that MS's ICMP
could interpret.

At least I *think* that's what I read -- I've had but one cup of coffee
this morning, so I could be completely in left field.

Good Luck,
--tlf

----------
From: Andrew[SMTP:redshift@istar.ca]
Sent: Friday, April 25, 1997 9:36 PM
To: NTisp Mailing List
Subject: Tracert timeout on first hop

Hi folks

Wondering if someone can help with a little configuration issue?

I have a PPro180 server running NT4.0 connected to a Livingston PM2e-R.

NTserver on 204.50.3.1
PM2 on 204.50.3.2
Upstream gateway 207.107.201.69

When I do a tracert from either the NT console or a dial in user I get the
following :
-----
c:\tracert www.microsoft.com
Tracing route to www.microsoft.com [207.68.137.59]
over a maximum of 30 hops:

1 * * * Request timed out.
2 60 ms 60 ms 60 ms 207.107.201.69
3 60 ms 70 ms 60 ms core-spc-van-1-fddi3/0.Sprint-Canada.Net
[204.50.251.49]
4 70 ms 60 ms 70 ms sl-sea-5-H11/0-T3.sprintlink.net
[144.228.95.37]
5 61 ms 70 ms 70 ms sl-sea-6-F0/0.sprintlink.net [144.228.90.6]
6 60 ms 81 ms 70 ms sl-mic-3-h0-T3.sprintlink.net
[144.228.96.22]
7 70 ms 60 ms 81 ms 207.68.145.46
8 70 ms 70 ms 80 ms 207.68.137.59

Trace complete.
----

The first hop times out *every time*.

If I Telnet to the PM2 and do the same trace there is no delay on the first
hop. So from that I figure it's a routing problem whit NT (?).

Here's my NT route table :

-------
C:\route print
Active Routes:

Network Address Netmask Gateway Address Interface Metric

0.0.0.0 0.0.0.0 204.50.3.2 204.50.3.1 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
204.50.3.0 255.255.255.0 204.50.3.1 204.50.3.1 1
204.50.3.1 255.255.255.255 127.0.0.1 127.0.0.1 1
204.50.3.255 255.255.255.255 204.50.3.1 204.50.3.1 1
207.107.201.0 255.255.255.0 204.50.3.2 204.50.3.1 2
207.107.201.68 255.255.255.252 204.50.3.2 204.50.3.1 1
224.0.0.0 224.0.0.0 204.50.3.1 204.50.3.1 1
255.255.255.255 255.255.255.255 204.50.3.1 204.50.3.1 1

-------
I added 207.107.201.68 (my WAN network segment) manually and deleted
207.107.201.0. And tried that no difference. As you can see 207.107.201.0
is part of the route table again. NT put it back in without even asking!
;-)

Any Ideas on the first hop delay would be greatly appreciated!

Thanx

Andrew Barton
RedShift Information Technology

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NTISP Mailing List listserver@emerald.iea.com

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