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Old 19th January 2011
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jggimi jggimi is offline
More noise than signal
 
Join Date: May 2008
Location: USA
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Just to be more helpful, here's how IP routing works, from a high level perspective:
  • All routes are defined as the path to the next address in the chain, no further.

    If the physical route from A to Z runs through the alphabet, A only needs to know that to get to Z, it sends packets to B. The routing table in B will point to C, and so on.
  • Any undefined route will use the "default" route, assuming one has been set up.

    For a typical Small Office / Home Office / Residential network (SOHO), the default route will point to a "gateway" router at the ISP, so that every possible subnet not defined locally -- all of the Internet -- gets routed outward.
With this as background, your ADSL router assumed that subnet 192.168.2/24 got routed through your ISP.
Your ISP will not route those packets to the Internet, of course, as they are part of the RFC 1918 address pool, used in private networks.
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