Access to the Internic Blocked

Jeff Young young at
Wed Aug 21 17:41:50 UTC 1996

perhaps if folks would just take the time to loose source route
in both directions instead of only one...

was the web page in response to complaints to those who turn off lsrr?

Jeff Young
young at

> To: nanog at
> Subject: Re: Access to the Internic Blocked 
> On Wed, 21 Aug 1996, Enke Chen wrote:
> > > You forgot to point out that his evidence below indicates that this is 
> > > an MCI problem in Washington. Besides the fact that Network Solutions
> > > isn't anyone's provider...
> > 
> > Let us be more careful here. The traceroute only indicates that the 
> > problem was with the hop after The traceroute 
> > simply does not contain sufficient information to pinpoint which 
> > party the next hop is.  
> Very true. That fact and the widespread use of assymetric return paths (as
> in this case) really makes it impossible to authoritatively diagnose who
> is at fault when a routing problem occurs merely by reading a few
> traceroutes.
> One thing that would help diagnose the true source of the problem with
> less human interaction required (avoiding voicemail and all that) would be
> wider public access to traceroutes beginning at key sites. There is a
> group of ISP's who make CGI-based traceroutes available from their sites
> at
> In this instance, it would have helped if the Internic had a CGI
> traceroute available from their site but I think it would also be a nice
> thing if the major NSP's would make this same kind of facility available
> from their exchange points.
> What do you folks think?
> Michael Dillon                   -               ISP & Internet Consulting
> Memra Software Inc.              -                  Fax: +1-604-546-3049
>             -               E-mail: michael at


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