Ok ill repeat what i said last time an identical topic came up on this forum. Parental "control" is
USELESS.
softwere
Softwere baised parental "control" is by far the easiest method to "break". If your child is
resonably computer litterate (and beleave me it dosnt take much to hit the "resonably"). All they have todo is visit this site
http://www.ubuntu.com/desktop/get-ubuntu/download download the softwere and create a "live cd/usb stick", Pop it in, reboot and bam they've defeated your control
hardwere
Still very easy but slightly harder due simply because it costs money (though not a lot) all they have todo is go here
http://shop.o2.co.uk/promo/o2mobileb...tab/Pay_and_Go (or to their prefered 3g opperator) purchace a 3g dongle, pop it in and they've bypassed your router and thus your hardwere parental "control"
and of cause if you use both (hardwere and softwere) then they can ALSO use both (though theres fewer 3g dongals that work on linux last time i checked). And trust me an 11 year old can easilly get the skills/money needed to follow either of these options. And none of these takes into account that their mobile phone also proberlly already allowes them unlimited access to the web
In summery Maggy's advise is the best, simply TEACH your child (or in this case get your sister to teach her child) the dangers of the interweb, inparticlar the dangers of meeting IRL those you meet online and hope they follow your advise. The only other option of cause is to stand over your child 24/7, not letting them do anything thus socally stunting their development for years to come
oh and maggie not all porn sites are dirtly places rife with malewere/virii. my porn site has now been online for 6 years and not had 1 report of any nastys :-)