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manpage: clarify tags: semantics for --dhcp-host

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Mention that several tags can be specified and instruct the user that
some other match must still be provided for the directive to have any
effect.
This commit is contained in:
Paul Fertser
2021-09-24 14:57:38 +03:00
committed by Simon Kelley
parent d9995a1add
commit ef2f8d70d2
1 changed files with 5 additions and 2 deletions
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7
man/dnsmasq.8
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@@ -1037,7 +1037,7 @@ is also included, as described in RFC-3775 section 7.3.
tells dnsmasq to advertise the prefix without the on-link (aka L) bit set. tells dnsmasq to advertise the prefix without the on-link (aka L) bit set.
.TP .TP
.B \-G, --dhcp-host=[<hwaddr>][,id:<client_id>|*][,set:<tag>][tag:<tag>][,<ipaddr>][,<hostname>][,<lease_time>][,ignore] .B \-G, --dhcp-host=[<hwaddr>][,id:<client_id>|*][,set:<tag>][,tag:<tag>][,<ipaddr>][,<hostname>][,<lease_time>][,ignore]
Specify per host parameters for the DHCP server. This allows a machine Specify per host parameters for the DHCP server. This allows a machine
with a particular hardware address to be always allocated the same with a particular hardware address to be always allocated the same
hostname, IP address and lease time. A hostname specified like this hostname, IP address and lease time. A hostname specified like this
@@ -1136,7 +1136,10 @@ ignore requests from unknown machines using
If the host matches only a \fB--dhcp-host\fP directive which cannot If the host matches only a \fB--dhcp-host\fP directive which cannot
be used because it specifies an address on different subnet, the tag "known-othernet" is set. be used because it specifies an address on different subnet, the tag "known-othernet" is set.
The tag:<tag> construct filters which dhcp-host directives are used. Tagged directives are used in preference to untagged ones. The tag:<tag> construct filters which dhcp-host directives are used; more than
one can be provided, in this case the request must match all of them. Tagged
directives are used in preference to untagged ones. Note that one of <hwaddr>,
<client_id> or <hostname> still needs to be specified (can be a wildcard).
Ethernet addresses (but not client-ids) may have Ethernet addresses (but not client-ids) may have
wildcard bytes, so for example wildcard bytes, so for example