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Matan Peled said the following: |
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> William Kenworthy wrote: |
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> |
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>>Can anyone comment whether IP spoofing (for hiding country of origin) is |
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>>common? Seems quite unlikely - at least at the current state of things. |
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>>Is it even possible to tell (at the firewall interface?) |
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>> |
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>>BillK |
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> |
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> |
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> I think that for hiding country of origin by IP spoofing is quite useless, at |
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> least on the Internet (It might work on a single subnet, or if you pretend to be |
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> another IP in your subnet, and then switches complicate it as well...) |
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> |
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I think it depends on your purpose. It is easy to get around, but |
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blocking whole ranges based on country could help cut down on the |
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vulerability scans that can be so annoying. Our country does no |
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business with China, yet various subnets are frequently scanned from |
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addresses originating there. Blocking those ranges would cause most of |
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them to move on. It is likely that you already block whole invalid |
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subnets in your firewall rules anyway. |
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