address01.md

ADDRESS01: Name server address must be globally routable

Test case identifier

ADDRESS01 Name server address must be globally routable

Objective

In order for the domain and its resources to be accessible, authoritative name servers must have addresses in the routable public addressing space.

IANA is responsible for global coordination of the IP addressing system. Aside its address allocation activities, it maintains reserved address ranges for special uses. These ranges can be categorized into three types : Special purpose IPv4 addresses, Special purpose IPv6 addresses and Multicast reserved addresses.

Inputs

The domain name to be tested.

Ordered description of steps to be taken to execute the test case

1. Obtain the IP addresses of each name server of the domain from the parent using Method4 and child using Method5

2. If any IP address (IPv4 or IPv6) falls within any of the blocks in the below mentioned IANA links, the test case fails:

   • https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml
   • https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml

Outcome(s)

If one name server has one of its addresses matches a forbidden address block, the test fails. If all the name server addresses are outside these forbidden blocks, the test case succeeds.

Special procedural requirements

The registries listed in bullet 2 above must be fetched prior to testing

Intercase dependencies

None.