Zonediver Posted December 18, 2020 Share Posted December 18, 2020 (edited) This is now the third time that I have observed this behavior ... Every time a new network card is installed for eth0, the old IP can no longer be used. When i use my old IP, i can ping the server, but no webGui or somethig else... only a change of the old IP to a new one helps... Can someone explain to me what the problem is? Is that the intention of unraid? Edited December 18, 2020 by Zonediver Quote Link to comment
itimpi Posted December 18, 2020 Share Posted December 18, 2020 Are you rebooting your router so that it releases the IP mapping for the old card? Quote Link to comment
Zonediver Posted December 18, 2020 Author Share Posted December 18, 2020 (edited) 9 minutes ago, itimpi said: Are you rebooting your router so that it releases the IP mapping for the old card? This doesnt help - tried it but no luck... Edited December 18, 2020 by Zonediver Quote Link to comment
itimpi Posted December 18, 2020 Share Posted December 18, 2020 How are you setting the IP address? The normal recommendation is to have Unraid set to use DHCP and then reserve the address for Unraid at the router level. Quote Link to comment
Zonediver Posted December 18, 2020 Author Share Posted December 18, 2020 5 minutes ago, itimpi said: How are you setting the IP address? The normal recommendation is to have Unraid set to use DHCP and then reserve the address for Unraid at the router level. My server has a static IP - over network.cfg Quote Link to comment
Tom3 Posted December 18, 2020 Share Posted December 18, 2020 (edited) Do you have an Internet modem that is assigning addresses from a DHCP pool? Does that pool overlap your server address? Many (perhaps most?) modems will automatically build a table of MACaddr + IP address then reserve that IP address. That's so if you reboot some device, it gets the same IP address each time. I've had issues where the modem default was to have the DHCP pool be the entire /24 address space. So an old NIC's MAC address / IP address pair remains in it's table. It's called IP Reservation on some devices, Static Lease on others. My particular modem has a GUI to allow adding/dropping MAC addresses from that table, and that fixes such things for me. Your modem may vary... -- Tom Edited December 18, 2020 by Tom3 typo Quote Link to comment
Zonediver Posted December 18, 2020 Author Share Posted December 18, 2020 (edited) 27 minutes ago, Tom3 said: Do you have an Internet modem that is assigning addresses from a DHCP pool? Does that pool overlap your server address? Many (perhaps most?) modems will automatically build a table of MACaddr + IP address then reserve that IP address. That's so if you reboot some device, it gets the same IP address each time. I've had issues where the modem default was to have the DHCP pool be the entire /24 address space. So an old NIC's MAC address / IP address pair remains in it's table. It's called IP Reservation on some devices, Static Lease on others. My particular modem has a GUI to allow adding/dropping MAC addresses from that table, and that fixes such things for me. Your modem may vary... -- Tom No and no This has nothing to do with my Cablemodem or Router (IPFire). When i change the Router, i get the same problem - i can't use a previous used IP on unraid. As soon i do this, i have no longer access to unraid... even when i disconnect Modem and router, i can't access unraid with a previous used IP... this is f.... weird... Edited December 18, 2020 by Zonediver Quote Link to comment
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