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Re: printer with static ip address inaccessible from lan






On 02/27/2018 01:24 PM, john doe wrote:
On 2/27/2018 7:07 PM, Thomas George wrote:
The Samsung CLP-320 printer's static ip 192.168.1.139 was set about 10 years ago to work on a lan using 192.168.1.x addresses. Last week the lan's router failed and was replaced with a Netgear r6700 router using 192.168.2.x addresses. The printer is now inaccessible from the lan.

Cups Administration says the printer address can be set using its MAC address:


      Configuring the IP Address Using DHCP

The DHCP protocol is the usual way of setting the IP address of a printer on a managed network. Using the standard dhcpd(8) program supplied with UNIX you simply need to add a line to the /etc/dhcpd.conf file:

host/hostname/  {
   hardware ethernet/mac-address/;
   fixed-address/ip-address/;
}

Make sure that the hostname you use is also listed in the /etc/hosts file or is registered with your DNS server.

apt-cache search dhcpd finds udhcpd. My pc's system is Debian Stretch. There is a file /etc/dhcp/dhclient.conf but no file /etc/dhcpd.

Is it possible to access the printer and change  its address to one in 192.168.2.x or to reset it to use dhcp?



The daemon 'dhcpd' is package 'isc-dhcp-server'.

Can't you change the IP of your ISP router to use the subnet 192.168.1.*?
This is certainly the simplest solution but the Netgear Genie does not have this option even as an advanced setting option. I will contact Netgear by phone to discuss this possibility.

One way to change the IP of your printer would be to directly connect a computer to your printer and set a fix address on the computer in the same subnet as the printer.
Then you can change the IP of your printer.

Using the 'dhcpd' and 'named' ('isc-dhcp-server, isc-bind) is one option but 'dnsmasq' is a simpler way to do the same.