[TriLUG] Frontier doing packet inspection?

[Joseph Mack NA3T]

This morning, instead of getting a 404 page not found, I got a "helpful" page 
from Frontier (my phone company) saying that they'd entered into a partnership 
with yahoo to provide alternate results for the search whenever I got a "404 
page not found". Below this notice was a google type list of suggested urls to 
click on. I could click on a link to turn it off and I could also go to my 
"preferences" page, which I didn't know I had. I thought I had a pipe to the 
internet and other than their DNS (which I don't use) Frontier was not involved 
(presumably I can have e-mail with them but I don't use it).

How does Frontier even know I got a "404 page not found" without doing packet 
inspection?

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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