On 1/8/23 06:56, Donald Muller wrote:
I recently added a 2.5GB switch to my network. All devices, which are NAS
devices, plugged into the switch have a reservation for their IP4 address
except of course the NAS running dnsmasq which has a fixed address. I updated
dnsmasq to include the reservations and the following dhcp options.
dhcp-option=tag:eth4,option:netmask,255.255.255.0
# set
net mask (1)
dhcp-option=tag:eth4,option:router,0.0.0.0
# set router address (3)
No address range is specified for eth4. When one of the NAS devices attempts to
get an IP address I receive the following error message.
no address range available for DHCP request via eth4
Even though I have reservations for the devices they never receive their
reserved address. If I add the range option then the devices receive their
reserved address.
dhcp-range=tag:eth4,192.168.122.100,192.168.122.199,255.255.255.0,3d
Why do I need to specify a dhcp range when the devices have reservations? I don't
want a device that does not have a reservation on this subnet to be able to plug
into the switch and get an address. Is this a bug in dnsmasq? If not is there a
way to >
>
Looks like you want the 'DHCP service' with 'static' leases.
If I'm correct, [1] says The optional keyword may be static
which tells dnsmasq to enable DHCP for the network specified, but not to
dynamically allocate IP addresses: only hosts which have static
addresses given via --dhcp-host or from /etc/ethers will be served."
[1] https://thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html
--
John Doe
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