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Question:
What is ASN Whitelist?
Environment:
OnApp CDN
Answer:
This feature is available on routing rules on enterprise package. Kindly contact us for more details.
Example:
If you have edge 1, edge 2 and edge 3, by default each of them can accept HTTP requests from all IP range. Then you set a rule on edge 1 to accept IP ASN XXX only, and set a rule on edge 2 to accept IP ASN YYY only. You don't need to set anything on edge 3.
(1) If a visitor IP range is coming from ASN XXX, it will get redirected to:
edge 1 OR edge 3 (as both of them can accept ASN XXX).
(2) If a visitor IP range is coming from ASN YYY, it will get redirected to:
edge 2 OR edge 3 (as both of them can accept ASN YYY).
(3) If a visitor IP range is coming from ASN ZZZ, it will get redirected to:
edge 3 only (since edge 3 can accept any ASN).