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Recommendations on the selection of addresses in the non-globally routable IP address ranges

  1. Network Address Translation (NAT)
    • Examples: Hosts connecting through firewall routers, AirPort wireless access points, or other NAT routers that provide Network Address Translation
    • Recommended IP Address Range: 10.0.0.0/16
  2. Interfaces on private networks that are configured to not forward traffic off that private network
    • Examples: Special-purpose private networks that interconnect servers for purposes such as clustering, disk sharing, data backups, etc., and that are configured to not forward traffic off that private network
    • Recommended IP Address Range: 172.16.0.0/16
  3. Interfaces on private networks that forward traffic off that private network for limited-scope routing within PennNet
    • Recommended IP Address Range: Please consult with ISC Networking

In order to start assigning these addresses, you will need appropriate range permissions in the Assignments database. To obtain appropriate permissions, please open a trouble ticket by contacting ISC's Provider Desk at <prodesk@isc.upenn.edu> or 215-573-4017.

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