We're finding weirdness with the traceroutes on various OS's and sites
about teh Us and outside the US similair to the first poster on the issue:

North Carolina:

Linux:

 5  POS1-2.BR4.DCA6.ALTER.NET (204.255.169.129)  150.016 ms  139.964 ms
139.527 ms
 6  0.so-1-0-0.XL1.DCA6.ALTER.NET (152.63.41.230)  150.741 ms  180.599 ms
157.162 ms
 7  0.so-0-0-0.XR1.DCA6.ALTER.NET (152.63.35.113)  140.307 ms  152.391 ms
147.236 ms
 8  0.so-3-0-0.TR1.DCA6.ALTER.NET (152.63.11.97)  150.651 ms  209.946 ms
149.68 ms
 9  121.at-5-2-0.TR1.NYC8.ALTER.NET (152.63.2.166)  160.602 ms  149.833 ms
169.714 ms
10  185.at-1-0-0.XR1.NYC8.ALTER.NET (152.63.19.185)  140.591 ms  139.952
ms  149.691 ms
11  183.ATM6-0.GW1.NYC8.ALTER.NET (152.63.18.137)  140.64 ms  150.009 ms
139.64 ms
12  circle-gw.customer.alter.net (157.130.49.6)  160.647 ms  160.279 ms
160.402 ms
13  * 192.216.122.214 (192.216.122.214)  180.906 ms  179.967 ms
14  205.229.56.205 (205.229.56.205)  159.541 ms  159.977 ms  159.792 ms
15  * 205.229.56.205 (205.229.56.205)  180.647 ms *
16  205.229.56.205 (205.229.56.205)  190.666 ms  180.003 ms  179.67 ms
17  205.229.56.205 (205.229.56.205)  199.683 ms *  180.86 ms
18  205.229.56.205 (205.229.56.205)  179.61 ms  189.936 ms  189.83 ms


openBSD:

 6  POS1-2.BR4.DCA6.ALTER.NET (204.255.169.129)  136.596 ms  147.230 ms
168.604 ms
 7  0.so-1-0-0.XL1.DCA6.ALTER.NET (152.63.41.230)  146.790 ms  155.243 ms
168.232 ms
 8  0.so-0-0-0.XR1.DCA6.ALTER.NET (152.63.35.113)  156.500 ms  137.161 ms
128.50 ms
 9  0.so-3-0-0.TR1.DCA6.ALTER.NET (152.63.11.97)  156.726 ms  157.886 ms
148.11 ms
10  121.at-5-2-0.TR1.NYC8.ALTER.NET (152.63.2.166)  166.246 ms  135.97 ms
168.139 ms
11  185.at-1-0-0.XR1.NYC8.ALTER.NET (152.63.19.185)  156.660 ms  136.919
ms  148.189 ms
12  183.ATM6-0.GW1.NYC8.ALTER.NET (152.63.18.137)  137.684 ms  157.144 ms
158.155 ms
13  circle-gw.customer.alter.net (157.130.49.6)  146.641 ms  157.30 ms
148.175
ms
14  192.216.122.214 (192.216.122.214)  176.679 ms *  166.510 ms
15  205.229.56.205 (205.229.56.205)  157.532 ms  157.91 ms  158.247 ms
16  * * *
17  205.229.56.205 (205.229.56.205)  174.641 ms  187.251 ms  178.38 ms
18  205.229.56.205 (205.229.56.205)  186.753 ms *  196.130 ms
19  205.229.56.205 (205.229.56.205)  196.214 ms  187.169 ms  166.296 ms

Minnesota:

SUNOS:

 3  chi-core-01.inet.qwest.net (205.171.20.37)  11 ms  12 ms  11 ms
 4  jfk-core-02.inet.qwest.net (205.171.5.11)  31 ms  31 ms  31 ms
 5  jfk-brdr-02.inet.qwest.net (205.171.230.21)  31 ms  31 ms  31 ms
 6  205.171.4.10 (205.171.4.10)  32 ms  32 ms  32 ms
 7  526.at-5-0-0.XR2.NYC8.ALTER.NET (152.63.23.78)  33 ms  33 ms  33 ms
 8  182.ATM7-0.GW1.NYC8.ALTER.NET (152.63.18.149)  33 ms  33 ms  33 ms
 9  157.130.49.6 (157.130.49.6)  39 ms  41 ms  41 ms
10  192.216.122.214 (192.216.122.214)  51 ms *  43 ms
11  205.229.56.205 (205.229.56.205)  43 ms  43 ms  42 ms
12  * * *
13  205.229.56.205 (205.229.56.205)  128 ms  67 ms  63 ms
14  205.229.56.205 (205.229.56.205)  66 ms *  573 ms
15  205.229.56.205 (205.229.56.205)  67 ms  63 ms  169 ms

Texas:

FreeBSD:

 4  500.POS3-0.GW5.DFW9.ALTER.NET (157.130.155.233)  6.773 ms  5.344 ms
5.637 ms
 5  130.at-5-0-0.XR2.DFW9.ALTER.NET (152.63.100.46)  5.680 ms  5.322 ms
5.938 ms
 6  184.at-2-1-0.TR2.DFW9.ALTER.NET (152.63.98.54)  5.975 ms  5.710 ms
6.004 ms 7  128.at-5-1-0.TR2.NYC8.ALTER.NET (152.63.4.6)  47.071 ms
48.556 ms  48.754 ms
 8  284.at-1-1-0.XR2.NYC8.ALTER.NET (152.63.19.205)  48.238 ms  47.631 ms
47.915 ms
 9  182.ATM7-0.GW1.NYC8.ALTER.NET (152.63.18.149)  47.892 ms  48.285 ms
47.517
ms
10  circle-gw.customer.alter.net (157.130.49.6)  51.102 ms  53.634 ms
49.705 ms11  192.216.122.214 (192.216.122.214)  64.805 ms *  56.177 ms
12  205.229.56.205 (205.229.56.205)  52.772 ms  52.019 ms  53.142 ms
13  205.229.56.205 (205.229.56.205)  67.160 ms * *
14  205.229.56.205 (205.229.56.205)  77.622 ms  77.550 ms  79.201 ms
15  205.229.56.205 (205.229.56.205)  75.565 ms *  76.961 ms
16  205.229.56.205 (205.229.56.205)  75.968 ms  75.197 ms  77.047 ms


We'd hoped to test from norway, but admins with less then a clue on system
maintainance prohibit traceroute.

Thanks,

Ron DuFresne

On Tue, 8 Jan 2002, Jim Watt wrote:

> --On 01/09/2002 9:38 AM +1100 Martin wrote:
> 
> } there is something wrong with that host.
> } 
> } have a look at line 11, you have already traced to the host but the
> } traceroute doesn't stop. i would say they are filtering IP packets, probably
> } ICMP as well.
> } 
> 
> OK, since we're comparing traceroute results... :-)
> 
> This one's from a FreeBSD 3.x system.  I cut out the hops before
> UUNET:
> 
> traceroute to 205.229.56.205 (205.229.56.205): 1-30 hops, 38 byte packets
> [...]
>  4  500.Serial2-2.GW3.PAO1.ALTER.NET (157.130.190.5)  22.2 ms  19.5 ms  18.3 ms
>  5  506.ATM3-0.XR1.PAO1.ALTER.NET (152.63.53.82)  20.1 ms  18.3 ms  16.2 ms
>  6  189.at-1-1-0.TR1.SAC1.ALTER.NET (152.63.50.94)  23.9 ms (ttl=249!)  23.1 ms
> (ttl=249!)  23.0 ms (ttl=249!)
>  7  127.at-6-3-0.TR1.NYC8.ALTER.NET (152.63.5.233)  107 ms (ttl=248!)  105 ms
> (ttl=248!)  105 ms (ttl=248!)
>  8  185.at-1-0-0.XR1.NYC8.ALTER.NET (152.63.19.185)  106 ms (ttl=247!)  106 ms
> (ttl=247!)  104 ms (ttl=247!)
>  9  183.ATM6-0.GW1.NYC8.ALTER.NET (152.63.18.137)  97.6 ms  97.1 ms  96.9 ms
> 10  circle-gw.customer.alter.net (157.130.49.6)  104 ms (ttl=240!)  101 ms
> (ttl=240!)  101 ms (ttl=240!)
> 11  192.216.122.214 (192.216.122.214)  106 ms (ttl=239!)  *  103 ms (ttl=239!)
> 12  205.229.56.205 (205.229.56.205)  110 ms (ttl=238!) !A  112 ms (ttl=238!) !A
> 110 ms (ttl=238!) !A
> 
> So from that machine, I get a nice, clean "Administratively Prohibited"
> return at the machine's IP address.
> 
> The variations make it kind of hard to know what's actually happening.
> 
> I wonder if we're seeing differences in what kind of ICMP replies are
> actually making it back to traceroute.
> 
> Jim
> --
> Jim Watt                               [EMAIL PROTECTED]
> Applied Biosystems                     Voice (desk): +1 408 577 2228
> 3833 North First Street                Fax:          +1 408 894 9307
> San Jose CA 95134-1701                 Voice (main): +1 408 577 2200
> 
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation." -- Johnny Hart
        ***testing, only testing, and damn good at it too!***

OK, so you're a Ph.D.  Just don't touch anything.

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