Re: Linux router AP with reserved IPs on wlan0?
On Sat, 2021-02-06 at 11:00 -0800, John Conover wrote:
> Stefan Monnier writes:
> > > A wireless router made with hostapd/dnsmasq/dhcpcd is fairly easy, and
> > > works well with iptables, with one shortcoming.
> > >
> > > After antagonizing the Google for hours, I can not find any way to add
> > > reserved IPs based on the the MAC address of devices connected on
> > > wlan0, (presumably in dhcpcd.conf.) Seems kind of a simple oversight
> > > for a wireless AP.
> >
> > I'm not familiar with dhcpd, but dnsmasq's built-in DHCP server has been
> > perfectly sufficient so far and it lets you specify fixed IPs based on
> > MACs by simply putting those in the `/etc/ethers` file.
> >
>
> Thank you, Stefan.
>
> Works like a charm. The syntax of /etc/ethers is ':' delimited MAC
> address, followed by a space delimiter, followed by the IPv4 IP
> address, per IP reservation. That IP address must also be in
> /etc/hosts.
I didn't know about /etc/ethers, on my system I allocate fixed IP
addresses and hostnames by adding a lines to dnsmasq.conf like
dhcp-host=MAC-Address,IP-Address,Hostname,Lease-Time
I guess there's more than one way to skin this cat.
--
Tixy
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