UCF STIG Viewer Logo

Nonroutable IPv6 link-local scope addresses must not be configured in any zone.


Finding ID Version Rule ID IA Controls Severity
V-259360 WDNS-22-000031 SV-259360r945266_rule Medium
IPv6 link-local scope addresses are not globally routable and must not be configured in any DNS zone. Like RFC1918 addresses, if a link-local scope address is inserted into a zone provided to clients, most routers will not forward this traffic beyond the local subnet.
Microsoft Windows Server Domain Name System (DNS) Security Technical Implementation Guide 2024-01-09


Check Text ( C-63099r939783_chk )
Log on to the DNS server using the Domain Admin or Enterprise Admin account or Local Administrator account.

Press the Windows key + R and execute "dnsmgmt.msc".

On the opened DNS Manager snap-in from the left pane, expand the server name for the DNS server and then expand "Forward Lookup Zones".

From the expanded list, click to select the zone.

Expand the "Forward Lookup Zones" folder.

Expand each zone folder and examine the host record entries. The third column titled "Data" will display the IP.

Verify this column does not contain any IP addresses that begin with the prefixes "FE8", "FE9", "FEA", or "FEB".

If any nonroutable IPv6 link-local scope addresses are in any zone, this is a finding.
Fix Text (F-63007r939784_fix)
Remove any link-local addresses and replace with appropriate Site-Local or Global scope addresses.