DHCP

Gravity’s DHCP Server supports:

• Reservations
• Static leases
• Full replication
• Pluggable IPAMs

Concepts

Scopes

A scope represents a single layer 2 network. Within a scope, Gravity assumes to be the main and only DHCP server, when not in listen-only mode.

The scope for any particular request is found in the following way:

• Checking if the DHCP Peer address is within any of the scopes CIDR, or
• Checking if the Address of the interface the request was received on is within any of the scopes CIDR, or
• Checking if the scope has the default flag set to true.

Afterwards, all matching scopes are sorted by the length of the scope’s CIDR Prefix, and the longest prefix match is chosen.

See Scopes.

Leases

A lease represents a single IP address assigned to a single MAC Address. A lease also includes a hostname.