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mirror of https://gitlab.isc.org/isc-projects/dhcp synced 2025-08-22 09:57:20 +00:00

[#37] Updated doc on server authority and DHCPINFORMs

modified:   RELNOTES
            modified:   server/dhcpd.conf.5
This commit is contained in:
Thomas Markwalder 2019-12-20 16:26:19 +00:00
parent 3b5aab88cf
commit e4b6b033db
2 changed files with 21 additions and 9 deletions

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@ -13,19 +13,19 @@ license terms.
While release 4.4.2b1 is primarily a maintenance release that addresses a number While release 4.4.2b1 is primarily a maintenance release that addresses a number
of defects, it does introduce a few new features: of defects, it does introduce a few new features:
- Keama - Keama is a migration utility that assists in converting ISC DHCP server - Keama - Keama is a migration utility that assists in converting ISC DHCP
configuration files to Kea configuration files. It is found in the keama server configuration files to Kea configuration files. It is found in the
subdirectory and includes a README.md file with instructions on how to build it keama subdirectory and includes a README.md file with instructions on how
as well as a manpage on its usage. to build it as well as a manpage on its usage.
- Two new server parameters related to ping checking were added: - Two new server parameters related to ping checking were added:
1. ping-cltt-secs which allows the user to specify the number of seconds that must 1. ping-cltt-secs which allows the user to specify the number of seconds
elapse since CLTT before a ping check is conducted. that must elapse since CLTT before a ping check is conducted.
2. ping-timeout-ms which allows the user to specify the amount of time the server
waits for a ping-check response in milliseconds rather than in seconds.
2. ping-timeout-ms which allows the user to specify the amount of time the
server waits for a ping-check response in milliseconds rather than in
seconds.
In general, the areas of focus for ISC DHCP 4.4 were: In general, the areas of focus for ISC DHCP 4.4 were:
@ -104,6 +104,12 @@ ISC DHCP is open source software maintained by Internet Systems
Consortium. This product includes cryptographic software written Consortium. This product includes cryptographic software written
by Eric Young (eay@cryptsoft.com). by Eric Young (eay@cryptsoft.com).
Changes since 4.4.2b1
- Added a clarification on DHCPINFORMs and server authority to
dhcpd.conf.5
[Gitlab #37]
Changes since 4.4.1 (New Features) Changes since 4.4.1 (New Features)
- A new configuration parameter, ping-cltt-secs (v4 operation only), has - A new configuration parameter, ping-cltt-secs (v4 operation only), has

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@ -2077,6 +2077,12 @@ that the server is authoritative for some subnets within a shared
network, but not authoritative for others, nor is it meaningful to network, but not authoritative for others, nor is it meaningful to
specify that the server is authoritative for some host declarations specify that the server is authoritative for some host declarations
and not others. and not others.
.PP
In order for DHCPINFORMs to be responded to by the server,
they must match to subnets over which the server has authority;
otherwise they will be ignored and logged. To minimize the
impact on logging volume, only the first and every subsequent 100th
occurrence of an ignored DHCPINFORM is logged.
.RE .RE
.PP .PP
The \fIboot-unknown-clients\fR statement The \fIboot-unknown-clients\fR statement