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Characterizing the use of 10-space within Chemistry and Physics.

Used primarily for two reasons

1. Easy, powerful protection

Easy protection for devices not needing a public IP but benefiting from being on Cornell's network.

  • Simpler and more bomb-proof network protection than a firewall.

On occasion the device may need a public IP temporarily. Such a change requires modifying the DNSDB record.

  • This is usually simpler and faster than making changes to CU's ACLs or firewall services.

Use cases in Chemistry

As of Jan. 12, 2016:

  • All (100%) of Chemistry and Physics networked printers: 129
    • 87 of those are on Research networks.
  • Many, many computers hooked up to instrument systems and most servers: 74
    • 49 of those are on Research networks.

For context. other numbers:

  • Public IPs for all Chemistry and Physics systems: 260*
    • Count does not include Physics Grad lab, with 61 public IPs assigned.
  • Systems on "zero" space: 22

2. Optimizes use of limited IP space

Affords twice the number of IPs on a network than if 10-space numbers were converted to public IP addresses and blocked at the network layer via firewall.

 

 

 

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