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authorRobert Göhler <github@ghlr.de>2020-01-04 14:12:53 +0100
committerRobert Göhler <github@ghlr.de>2020-01-04 14:12:53 +0100
commit52595595f76d85b20477b61a886a9ff09f17e604 (patch)
treeb33d14410f79ee8c716f22bd765cf9722cd196cf /docs/services/dhcp.rst
parent156eef177980052027db572e4b60d984626e0081 (diff)
parenta4fbdcf4b01c8a1806576bcd62a6f166b5645dc6 (diff)
downloadvyos-documentation-52595595f76d85b20477b61a886a9ff09f17e604.tar.gz
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Merge branch 'master' into newdirectives
Diffstat (limited to 'docs/services/dhcp.rst')
-rw-r--r--docs/services/dhcp.rst42
1 files changed, 28 insertions, 14 deletions
diff --git a/docs/services/dhcp.rst b/docs/services/dhcp.rst
index 19c92aac..bcadb673 100644
--- a/docs/services/dhcp.rst
+++ b/docs/services/dhcp.rst
@@ -6,6 +6,8 @@ DHCP / DHCPv6
VyOS uses ISC DHCPd for both IPv4 and IPv6 address assignment.
+.. _dhcp-server:
+
DHCP Server
===========
@@ -144,23 +146,23 @@ inside the subnet definition but can be outside of the range statement.
DHCP Options
------------
-.. cfgcmd:: set service dhcp-server shared-network-name '<name>' subnet 192.0.2.0/24 default-router '<address>'
+.. cfgcmd:: set service dhcp-server shared-network-name <name> subnet 192.0.2.0/24 default-router <address>
Specify the default routers IPv4 address which should be used in this subnet.
This can - of course - be a VRRP address (DHCP option 003).
-.. cfgcmd:: set service dhcp-server shared-network-name '<name>' subnet 192.0.2.0/24 dns-server '<address>'
+.. cfgcmd:: set service dhcp-server shared-network-name <name> subnet 192.0.2.0/24 dns-server <address>
Specify the DNS nameservers used (Option 006). This option may be used
mulltiple times to specify additional DNS nameservers.
-.. cfgcmd:: set service dhcp-server shared-network-name '<name>' subnet 192.0.2.0/24 domain-name '<domain-name>'
+.. cfgcmd:: set service dhcp-server shared-network-name <name> subnet 192.0.2.0/24 domain-name <domain-name>
The domain-name parameter should be the domain name that will be appended to
the client's hostname to form a fully-qualified domain-name (FQDN) (DHCP
Option 015).
-.. cfgcmd:: set service dhcp-server shared-network-name '<name>' subnet 192.0.2.0/24 domain-search '<domain-name>'
+.. cfgcmd:: set service dhcp-server shared-network-name <name> subnet 192.0.2.0/24 domain-search <domain-name>
The domain-name parameter should be the domain name used when completing DNS
request where no full FQDN is passed. This option can be given multiple times
@@ -315,12 +317,24 @@ Always verify that the parameters are correct before commiting the configuration
Refer to isc-dhcp's dhcpd.conf manual for more information:
https://kb.isc.org/docs/isc-dhcp-44-manual-pages-dhcpdconf
+Quotes can be used inside parameter values by replacing all quote characters
+with the string ``&quot;``. They will be replaced with literal quote characters
+when generating dhcpd.conf.
+
Example
^^^^^^^
.. opcmd:: set service dhcp-server shared-network-name dhcpexample subnet 192.0.2.0/24 static-mapping example static-mapping-parameters "option domain-name-servers 192.0.2.11, 192.0.2.12;"
- Override the static-mapping's dns-server with a custom one that will be sent only to this host.
+ Override the static-mapping's dns-server with a custom one that will be sent
+ only to this host.
+
+.. opcmd:: set service dhcp-server shared-network-name dhcpexample subnet 192.0.2.0/24 static-mapping example static-mapping-parameters "option pxelinux.configfile &quot;pxelinux.cfg/01-00-15-17-44-2d-aa&quot;;"
+
+ An option that takes a quoted string is set by replacing all quote characters
+ with the string ``&quot;`` inside the static-mapping-parameters value.
+ The resulting line in dhcpd.conf will be
+ ``option pxelinux.configfile "pxelinux.cfg/01-00-15-17-44-2d-aa";``.
Operation Mode
--------------
@@ -387,41 +401,41 @@ Configuration Options
Clients receiving advertise messages from multiple servers choose the server
with the highest preference value. The range for this value is ``0...255``.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' lease-time {default | maximum | minimum}
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> lease-time {default | maximum | minimum}
The default lease time for DHCPv6 leases is 24 hours. This can be changed by
supplying a ``default-time``, ``maximum-time`` and ``minimum-time``. All
values need to be supplied in seconds.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' nis-domain '<domain-name>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> nis-domain <domain-name>
A :abbr:`NIS (Network Information Service)` domain can be set to be used for
DHCPv6 clients.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' nisplus-domain '<domain-name>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> nisplus-domain <domain-name>
The procedure to specify a :abbr:`NIS+ (Network Information Service Plus)`
domain is similar to the NIS domain one:
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' nis-server '<address>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> nis-server <address>
Specify a NIS server address for DHCPv6 clients.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' nisplus-server '<address>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> nisplus-server <address>
Specify a NIS+ server address for DHCPv6 clients.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' sip-server-address '<address>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> sip-server-address <address>
Specify a :abbr:`SIP (Session Initiation Protocol)` server by IPv6 address
for all DHCPv6 clients.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' sip-server-name '<fqdn>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> sip-server-name <fqdn>
Specify a :abbr:`SIP (Session Initiation Protocol)` server by FQDN for all
DHCPv6 clients.
-.. cfgcmd:: set service dhcpv6-server shared-network-name '<name>' subnet '<v6net>' sntp-server-address '<address>'
+.. cfgcmd:: set service dhcpv6-server shared-network-name <name> subnet <prefix> sntp-server-address <address>
A SNTP server address can be specified for DHCPv6 clients.
@@ -556,7 +570,7 @@ https://wiki.vyos.net/wiki/Network_address_setup.
Configuration
-------------
-.. cfgcmd:: set service dhcp-relay interface '<interface>'
+.. cfgcmd:: set service dhcp-relay interface <interface>
Enable the DHCP relay service on the given interface.