Diagnosing connection issue

Jerry Feldman gaf-mNDKBlG2WHs at public.gmane.org
Thu Feb 17 07:39:03 EST 2011


On 02/16/2011 07:37 PM, Tom Metro wrote:
> edwardp-jjFNsPSvq+iXDw4h08c5KA at public.gmane.org wrote:
>> What remains a mystery...I could not call up the modem
>> and router status screens in the browsers using their IP addresses
>> (no DNS used), yet both of them sent back immediate ping responses...
> While unlikely, especially with two appliances involved, it is possible=

> that the web interface on them references public URLs, say for images,
> that are then being blocked by DNS or general WAN connectivity issues.
>
> You can inspect the returned HTML on those devices to see if that is th=
e
> case.
>
> There are other possibilities, like proxy settings, or browser plugins
> that might "phone home" to a public site on each connection request. Bu=
t
> with multiple browsers and OSs, this is even more unlikely.
>
> Web access filtering built-in to a router, if it depends on a public
> site to look up information about a URL, might also explain it. But
> didn't you say you had this problem both before and after switching rou=
ters?
>
> It may be time to break out a packet sniffer and see what's really goin=
g on.
>
>  -Tom
>
Could it be a bad plugin or possibly flash. You and I are both running
an old version.

--=20
Jerry Feldman <gaf-mNDKBlG2WHs at public.gmane.org>
Boston Linux and Unix
PGP key id: 537C5846
PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB  CA3B 4607 4319 537C 5846



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