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Add tag filtering of dhcp-host directives.

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This commit is contained in:
Simon Kelley
2020-02-07 21:05:54 +00:00
parent 137286e9ba
commit 52ec783613
8 changed files with 58 additions and 28 deletions
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5
man/dnsmasq.8
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@@ -975,7 +975,7 @@ 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.
.TP
.B \-G, --dhcp-host=[<hwaddr>][,id:<client_id>|*][,set:<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
with a particular hardware address to be always allocated the same
hostname, IP address and lease time. A hostname specified like this
@@ -1060,6 +1060,9 @@ ignore requests from unknown machines using
.B --dhcp-ignore=tag:!known
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.
The tag:<tag> construct filters which dhcp-host directives are used. Tagged directives are used in preference to untagged ones.
Ethernet addresses (but not client-ids) may have
wildcard bytes, so for example
.B --dhcp-host=00:20:e0:3b:13:*,ignore