Create a DHCP reverse zone for reverse DHCP zone declarations to configure TSIG or GSS-TSIG signing of Dynamic DNS updates.
To add a DHCP reverse zone:
- Select the IPAM tab in the sidebar, then select DHCP settings.
- Select the DHCP zone groups tab.
- Select the name of a DHCP zone group in the DHCP zone groups table.
- From the DHCP zones tab that opens, select New > DHCP reverse zone.
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Under General, configure the following parameters:
- Primary DNS server address—enter the IPv4 or IPv6 address for the reverse zone’s primary DNS server.
- Secondary DNS server address—enter the IPv4 or IPv6 address for
the zone’s secondary DNS server.Note: DHCPv6 server can only communicate with a DNS server over IPv4 for DDNS updates.Note: The primary and secondary fields refer to the Windows DNS Server definition of primary/secondary servers (two read/write servers), not the standard primary/secondary architecture of the DNS protocol (where primary is read/write and the secondary is read-only). When adding a forward DHCP zone to non-Windows DNS servers in a standard primary-secondary relationship, fill out only the Primary DNS Server Address field. The Secondary DNS Server Address field is only for Windows DNS Server configurations, where both servers are read/write.
- Prefix type—select one of the following options:
- For an IPv4 or IPv6 block or network located on an Address Manager-managed DHCP server, select Under Address Manager Control and select a block or network from the Find a block or network drop-down menu. To filter the list of blocks and networks, type the first few numbers of the block or network range and the existing blocks or networks will be populated.
- For a reverse zone located on a server not managed by Address Manager, select Third party and type a fully-qualified domain name in the Prefix field.
- Dynamic update signing key type—select one of the following
options to sign DDNS updates for the reverse zone:
- None—to not sign DDNS updates.
- TSIG—to sign DDNS updates with a TSIG key.
- GSS-TSIG—to sign DDNS updates with GSS-TSIG.
- In the Change control section, add comments if required.
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Select
Create or Create and add
another.
Note: IPv6 reverse zone declarations are deployed only with DHCPv6 service deployment.