IPv4 Private Address Space
Louis Garcia <[email protected]>
| Newsgroups | gmane.network.dhcp.isc.dhcp-server |
|---|---|
| Message-ID | <CAFiZx5x9tBc-nf3BSbBA=smkvb6CwSDO3Umt_i8wsYXXUEGO+w__48228.026453738$1620769149$gmane$org@mail.gmail.com> |
According to standards set forth in Internet Engineering Task Force
(IETF) document RFC-1918, the following IPv4 address ranges are
reserved by the IANA for private internets,
10.0.0.0/8 IP addresses: 10.0.0.0 – 10.255.255.255
172.16.0.0/12 IP addresses: 172.16.0.0 – 172.31.255.255
192.168.0.0/16 IP addresses: 192.168.0.0 – 192.168.255.255
dhcpd does not seem to like subnet/mask combination.
authoritative;
default-lease-time 600;
max-lease-time 7200;
subnet 172.16.4.0 netmask 255.240.0.0 {
option domain-name-servers 172.16.4.1;
option broadcast-address 172.31.255.255;
option routers 172.16.4.1;
option ntp-servers 172.16.4.1;
range 172.16.4.50 172.16.4.254;
}
May 11 16:07:01 dhcpd[4540]: Internet Systems Consortium DHCP Server 4.4.2b1
May 11 16:07:01 dhcpd[4540]: Copyright 2004-2019 Internet Systems Consortium.
May 11 16:07:01 dhcpd[4540]: All rights reserved.
May 11 16:07:01 dhcpd[4540]: For info, please visit
https://www.isc.org/software/dhcp/
May 11 16:07:01 dhcpd[4540]: /etc/dhcp/dhcpd.conf line 4: subnet
172.16.4.0 netmask 255.240.0.0: bad subnet number/mask combination.
May 11 16:07:01 dhcpd[4540]: subnet 172.16.4.0 netmask 255.240.0.0
May 11 16:07:01 dhcpd[4540]:
^
May 11 16:07:01 dhcpd[4540]: Configuration file errors encountered -- exiting
May 11 16:07:01 dhcpd[4540]:
May 11 16:07:01 dhcpd[4540]: This version of ISC DHCP is based on the
release available
May 11 16:07:01 dhcpd[4540]: on ftp.isc.org. Features have been added
and other changes
May 11 16:07:01 dhcpd[4540]: have been made to the base software
release in order to make
May 11 16:07:01 dhcpd[4540]: it work better with this distribution.
May 11 16:07:01 dhcpd[4540]:
May 11 16:07:01 dhcpd[4540]: Please report issues with this software via:
May 11 16:07:01 dhcpd[4540]: https://bugzilla.redhat.com/
May 11 16:07:01 dhcpd[4540]:
May 11 16:07:01 dhcpd[4540]: exiting.
May 11 16:07:01 dhcpd.service: Main process exited, code=exited,
status=1/FAILURE
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