Just to add some more thought to this post. A lot of routers come with uPnP<http://en.wikipedia.org/wiki/Universal_Plug_and_Play>capability enabled. There have been some cases of the router itself having a uPnP vulnerability. I just picked this<http://www.haveyougotwoods.com/archive/2008/01/15/common-home-router-exploit-upnp-enabled-routers-only.aspx>link of a google search for example. There was a BT Home Hub "backdoor" that was doing the rounds once a while ago here http://www.gnucitizen.org/blog/bt-home-flub-pwnin-the-bt-home-hub/
Personally I turn off uPnP unless its needed, some applications and gaming consoles will use it I think. Id be interested to hear if anyone knows if reported backdoors on sky netgear routers? Mark
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