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What is a DHCP static lease?
Static DHCP (aka DHCP reservation) is a useful feature which makes the DHCP server on your router always assign the same IP address to a specific computer on your LAN. To be more specific, the DHCP server assigns this static IP to a unique MAC address assigned to each NIC on your LAN.
Do static IP addresses have leases?
1 Answer. Static IP addresses don’t show up in the DHCP lease table. Static IP addresses are configured locally on a host, the DHCP server doesn’t know anything about it. Deleting the lease table or entries from it will make the DHCP server forget about addresses still on lease, so it might try to hand them out again.
What is DHCP range?
The DHCP range, also known as the DHCP scope, is a list of IP addresses to include or exclude for assignment to DHCP clients. In other words, you can select a range of IP addresses that can be used by devices connected to your DHCP service. You can also exclude any addresses that do not need to be used by clients.
How does the dnsmasq.leases file work?
The dnsmasq.leases file is like a database for dnsmasq to know what address has assigned along with some other info. According to sites here and here you cand assign static ip to a host as follows: –dhcp-host=servername,192.168.0.199 –dhcp-host=00:20:e0:3b:13:af,servername,infinite
How to define static ranges in dnsmasq.conf?
There is no need to explicitly define static ranges in your dnsmasq.conf if they belong to a subnet defined in dhcp-range: simply define static leases using dhcp-host (e.g., dhcp-host= [MAC address], [IP address].
How to exchange static IP and DHCP lease?
– Unix & Linux Stack Exchange Static IP and DHCP Lease in dnsmasq? I’m setting up a couple of Raspberry Pi’s on my router’s DMZ (don’t worry all the ports are closed); my router uses DNSMasq for DNS and so I added the MAC addresses; hostnames and IPs of the pi’s to the dhcp static leases.
Why do I get a different IP address after Dnsmasq?
Clients that had a network interface update which results in a different MAC address might not get the intended IP address immediately. This is because the dnsmasq service has provided this IP address to the old MAC address, and will wait until the lease of this address has expired before re-assigning it.