On 22 October 2016 at 15:14, Edward Kerr via Peterboro < peterboro@mailman.lug.org.uk> wrote:
> All my DHCP machines are still being given IP address below .50 and above > .10 i.e. no change. > You say "still being given" but have you confirmed that these are new leases issued since you updated the router, not old ones that pre-date the change? In Linux you should find any lease information, including when it was obtained and when it expires, in /var/lib/dhcp/dhclient*.leases . On Windows, "ipconfig /all" should tell you. If your lease is a new one but still wrong, then the next thing to check is that it is coming from your router, which you can verify in the same places. I think it's unlikely that you have two DHCP servers running coincidentally on the same subnet range, but I don't know your network and it's not impossible! Note that when a device requests a new lease it will usually request the address it already have (it's up to the server to re-issue the same address or a new one); it might be that the server is re-issuing leases to existing addresses and only using the settings for new requests rather than renewals. Pretty unlikely though. Mark -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) 21 Drakes Mews, Milton Keynes, MK8 0ER
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