AS Number

Category: Location

Purpose: Identifies requests by the network from which the request was issued.

A network is identified by its Autonomous System Number (ASN).

Key information:

• Specify multiple AS numbers by delimiting each one with a single space.

  Example:

  A value of "64514 64515" matches requests arriving from either 64514 or 64515.

• Certain requests may not return a valid AS number. A question mark (i.e., ?) will match requests for which a valid AS number could not be determined.
• The entire AS number for the desired network must be specified. Partial values will not be matched.
• This match condition is satisfied when the client's network is either an exact match (i.e., match) or does not match the specified AS number(s).

• Due to the manner in which cache settings are tracked, this match condition is incompatible with the following features:

  • Complete Cache Fill (End-of-Life)
  • Default Internal Max-Age
  • Force Internal Max-Age
  • Ignore Origin No-Cache
  • Internal Max-Stale