Great Circle Associates Firewalls
(November 1996)
 

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Subject: Re: Looping TRACERT?
From: Paul Ferguson <pferguso @ cisco . com>
Date: Wed, 27 Nov 1996 07:28:23 -0500
To: Russ <Russ . Cooper @ RC . on . ca>
Cc: "'Firewalls Mailing List'" <firewalls @ GreatCircle . COM>

No, this is not normal, and would indicate a pretty hosed routing
problem. :-)

- paul


At 04:01 AM 11/27/96 -0500, Russ wrote:

>*
>15   130 ms   151 ms   140 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 16   130 ms   140 ms   140 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 17   190 ms   140 ms   141 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 18   130 ms   140 ms   140 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 19   150 ms   160 ms   150 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 20   140 ms   160 ms   140 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 21   140 ms   150 ms   150 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 22   151 ms   160 ms   140 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 23   141 ms   160 ms   160 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 24   140 ms   130 ms   150 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 25   150 ms   161 ms   140 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 26   140 ms   181 ms   170 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 27   160 ms   161 ms   180 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 28   200 ms   171 ms   150 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
> 29   160 ms   181 ms   350 ms  tpa-max.THOUGHTPORT.NET [206.41.176.10]
> 30   190 ms   251 ms   240 ms  CHI-Cisco01.thoughtport.COM 
>[199.171.236.1]
>*

>*
>Normal? I don't understand, why would two routers be pointing to each 
>other just because a route is down? Maybe its something real basic that 
>I'm missing here because I figured there was a problem, but I just 
>can't figure out why they would be pointing to each other and not 
>simply timing out. Is this the type of stuff we can look forward to 
>when we have redundant routes and parallel Firewalls?
>*

--
Paul Ferguson                                           ||        ||
Consulting Engineering                                  ||        ||
Herndon, Virginia   USA                                ||||      ||||
tel: +1.703.397.5938                               ..:||||||:..:||||||:..
e-mail: pferguso @
 cisco .
 com                         c i s c o S y s t e m s


Indexed By Date Previous: RE: Cisco's PIX firewall
From: Russ <Russ . Cooper @ RC . on . ca>
Next: Re: Redundant FW-1s in Parallel!?
From: shiggins @ naccess . com (Sean higgins)
Indexed By Thread Previous: Re: Looping TRACERT?
From: Benedikt Stockebrand <benedikt @ devnull . ruhr . de>
Next: IBM SNG and tripwire
From: Paulo Jorge Delgado <Paulo . Delgado @ bta . pt>

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