Michael Stone wrote on 1/31/20 2:00 PM:
Michael, thanks for that tip. I got rid of both network managers and setup the port in /etc/network/interfaces and that works -- sometimes.On Fri, Jan 31, 2020 at 11:27:06AM -0600, Dennis Wicks wrote:john doe wrote on 1/31/20 1:00 AM:On 1/31/2020 2:48 AM, Dennis Wicks wrote:I am running Debian Buster 10, upgrade within the past week.I tried to change my e-net to use dhcp, which I thought it was but itHow did you try to change your e-net to use dhcp?wasn't picking up all the info from the DHCP server, specifically the IP addr. Now it doesn't work at all. How can I run through the setup/init process that it went through at install to get back at least a workingcommunications port.I would say, revert the change(s)that you have done. -- John DoeI have tried that to no avail. There are two possibilities: (1) I don't remember exactly what was there before(2) One of the two network management programs that are running changed something that I don't know about.In my Notification Area there are two programs that seem to be controlling the interfaces, and perhaps causing my problems. They are Network Manager Applet and WICD Network Manager.Do you remember which one you used? Both can be used, but if you try to use both at the same time you'll have problems. I'd suggest uninstalling one of them, or at the very least make sure that they aren't both trying to control the same interface. Neither will modify /etc/network/interfaces, so just ignore that.
If I try to use IP address reservation in my dhcp server ifup will not work. I get this:
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root@ichiban:~# ifup enp3s0 Internet Systems Consortium DHCP Client 4.4.1 Copyright 2004-2018 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/enp3s0/10:7b:44:50:39:8b Sending on LPF/enp3s0/10:7b:44:50:39:8b Sending on Socket/fallback DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 8 DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 7 DHCPOFFER of 192.168.1.2 from 192.168.254.254 DHCPREQUEST for 192.168.1.2 on enp3s0 to 255.255.255.255 port 67 DHCPNAK from 192.168.254.254 DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 6 DHCPOFFER of 192.168.1.2 from 192.168.254.254 DHCPREQUEST for 192.168.1.2 on enp3s0 to 255.255.255.255 port 67 DHCPNAK from 192.168.254.254
- - - - - <repeat ad infinitum>If I remove IP address reservation ifup works and I get the following:
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root@ichiban:~# ifup enp3s0 Internet Systems Consortium DHCP Client 4.4.1 Copyright 2004-2018 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/enp3s0/10:7b:44:50:39:8b Sending on LPF/enp3s0/10:7b:44:50:39:8b Sending on Socket/fallback DHCPDISCOVER on enp3s0 to 255.255.255.255 port 67 interval 7 DHCPOFFER of 192.168.34.220 from 192.168.254.254 DHCPREQUEST for 192.168.34.220 on enp3s0 to 255.255.255.255 port 67 DHCPACK of 192.168.34.220 from 192.168.254.254 bound to 192.168.34.220 -- renewal in 6833 seconds.root@ichiban:~#
- - - - -This machine is running Buster 10 64 bit, I have a machine that is running Buster 10 32 bit that works fine with Network Manager Applet 1.8.22. This machine (64 bit) had 1.8.20 and it did not work. Just looped continuously until I deleted the address reservation from the dhcp server. When I run ifup it does the same thing so the problem must be buried deeper somewhere.
Thanks for all the help and suggestions! Dennis