DHCP client lease database
keeps a persistent
database of leases that it has acquired that are still valid. The database is
a free-form ASCII file containing one valid declaration per lease. The file is
written as a log, so the last declaration is the most recent lease obtained.
The lease file is named
where “IFNAME” represents the network interface
acquired the lease
on. For example, if
is configured for
the em0 network device, the lease file will be named
The format of the lease declarations is described in
- Current lease file.
Dynamic Host Configuration Protocol,
RFC 2131, March 1997.
S. Alexander and
R. Droms, DHCP Options and BOOTP
Vendor Extensions, RFC 2132,
was written by
under a contract with Vixie Labs.
The current implementation was reworked by Henning