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| author | Simon Kelley <simon@thekelleys.org.uk> | 2013-09-20 16:29:20 +0100 |
|---|---|---|
| committer | Simon Kelley <simon@thekelleys.org.uk> | 2013-09-20 16:29:20 +0100 |
| commit | 89500e31f199e9ae1eadc86213b911ff44d30d6f (patch) | |
| tree | 458fd19b42ccf7cecbf8fbcd24572b4534f75d87 /man | |
| parent | c8f2dd8b5363b9026ae3de6ce84b5b64df657892 (diff) | |
| download | dnsmasq-89500e31f199e9ae1eadc86213b911ff44d30d6f.tar.gz | |
Support MAC addresses in dhcp-host and dhcp-mac for DHCPv6.v2.67test15
Diffstat (limited to 'man')
| -rw-r--r-- | man/dnsmasq.8 | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/man/dnsmasq.8 b/man/dnsmasq.8 index 05733b8..e313d54 100644 --- a/man/dnsmasq.8 +++ b/man/dnsmasq.8 @@ -766,7 +766,8 @@ the same subnet as some valid dhcp-range. For subnets which don't need a pool of dynamically allocated addresses, use the "static" keyword in the dhcp-range declaration. -It is allowed to use client identifiers rather than +It is allowed to use client identifiers (called client +DUID in IPv6-land rather than hardware addresses to identify hosts by prefixing with 'id:'. Thus: .B --dhcp-host=id:01:02:03:04,..... refers to the host with client identifier 01:02:03:04. It is also @@ -781,11 +782,12 @@ IPv6 addresses may contain only the host-identifier part: .B --dhcp-host=laptop,[::56] in which case they act as wildcards in constructed dhcp ranges, with the appropriate network part inserted. -Note that in IPv6 DHCP, the hardware address is not normally -available, so a client must be identified by client-id (called client -DUID in IPv6-land) or hostname. +Note that in IPv6 DHCP, the hardware address may not be +available, though it normally is for direct-connected clients, or +clients using DHCP relays which support RFC 6939. -The special option id:* means "ignore any client-id + +For DHCPv4, the special option id:* means "ignore any client-id and use MAC addresses only." This is useful when a client presents a client-id sometimes but not others. @@ -1033,7 +1035,7 @@ this to set a different printer server for hosts in the class "accounts" than for hosts in the class "engineering". .TP .B \-4, --dhcp-mac=set:<tag>,<MAC address> -(IPv4 only) Map from a MAC address to a tag. The MAC address may include +Map from a MAC address to a tag. The MAC address may include wildcards. For example .B --dhcp-mac=set:3com,01:34:23:*:*:* will set the tag "3com" for any host whose MAC address matches the pattern. @@ -1339,7 +1341,7 @@ every call to the script. DNSMASQ_IAID containing the IAID for the lease. If the lease is a temporary allocation, this is prefixed to 'T'. - +DNSMASQ_MAC containing the MAC address of the client, if known. Note that the supplied hostname, vendorclass and userclass data is only supplied for |