Hi all who replied.

Sorry for not replying sooner but still having minor troubles with network; will try out each suggestion when time allows. At moment now have a printer which we can print to on a temp connection.  It looks as if the 'old' print server was also affected by the same power cut; so now have 2 items to check out later. Managed to get all working on the Talktalk router and understand some of the jargon they use. Ordered a USB/Ethernet connector which should be here mid-week; will then try to get the 'new' printer (HPLJ1022) to work on the network and not via the desktop PC. Will check out the HP LJ6p on an old Windows PC in the workshop, just be sure it's still viable and not damaged as it's a better B&W printer. Thaks for the suggestions and have a good meeting on Tuesday, sorry not to be there.

*C A Wills*

/Supporting Linux Mint & Open Source/

On 30/09/18 21:03, PeterMerchant via dorset wrote:
On 30/09/18 13:41, Ralph Corderoy wrote:
Hi Clive,

Problem is trying to ensure that the IP address is issued to the
required MAC address.
I think you're trying to have the ADSL router dish out IP addresses to
those that come asking by DHCP from your LAN, but have the DHCP server
always give a known IP address to the same MAC address,

and possibly refuse to give an IP address to any unknown MAC address.
This is the difficult bit, if you really need to do it.
Whether that's possible with the TalkTalk router's GUI, I don't know.
You might just have to poke around lots, or ask on a TalkTalk forum.



Peter's advice is another option.  Ditch the centralised allocation of
IP address for MAC address on the router and configure each device to
use a distinct static IP address instead.  Moving the range dished out
by the DHCP server out of the way of the range you've used for the
static ones.  The downside is you no longer have a single view of what
devices exist.
My Talktalk badged D-link router (2780?) does show all devices connected.
I didn't know that I had so many, but I think I know what they all are.
Besides each is a pencil icon which apparently I can click to set this as fixed (Reserved) Ip address.

I have a small DHCP range 16-31 and fixed devices between .1 and .15
FWIW my current DHCP devices are 2 tablets and a phone, an Amazon Echo, and a WiFi power socket. When the children are home they can add up to another 7 devices.

Yes, I suppose there is a security risk, but an intruder needs to break the wireless security first, unless they are going to connect by Ethernet.

Peter




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