Hi I want to use IPv6. I got for my Router External IPv4 Static and do Portforwarding. I know, IPv6 don't need this. But on Installation i Disabled IPv6 cause it wasn't avaiable. Now i got External Static IPv6 also for each Device is going with IPv6 to internet. But how can i activat now IPv6 on Ubuntu? I would activate it as "DHCP" cause Static directly won't work (Prefix Delegation). How do i need to start? Tried on Netplan to activate it with dhcpv6: ture That would work but than the full Server isn't avaiable anymore. May i did a failture there. Can you help me step for step? Or ask me what informations you also need that you can explain me how to do? I have very much experiance with Windows Server etc. but i'm actually learning with Linux but on IPv6 there is no chance for me actually. Thank you guys! Best Regards Erwin
Thank you, but that don't tell about netplan.. and there is the problem that i don't know how to set in on netplan. Its like this (found on internet): # This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: eth0: dhcp4: no dhcp6: yes addresses: - 81.169.YYY.XXX/32 gateway4: 81.169.1YY.XX nameservers: adresses: [81.169.163.106, 85.214.7.22, 81.169.148.34] routes: - to: 0.0.0.0/0 via: 81.169.1YY.XX on-link: true but if i do like this (dhcp6) it would be configured but IPv4 isn't avaiable anymore. Is it important where the dhcp6 option is standing? Like on Windows Client / Server there would it be like this: dhcp4: no IPv4 Netmask Gataway DNS dhcp6: yes may it need to be on bottom? i can't test it cause it's a live system. Thank you
tried now like this: Its like this (found on internet): # This file describes the network interfaces available on your system # For more information, see netplan(5). network: version: 2 renderer: networkd ethernets: eth0: addresses: - 81.169.YYY.XXX/32 gateway4: 81.169.1YY.XX nameservers: adresses: [81.169.163.106, 85.214.7.22, 81.169.148.34] dhcp4: no dhcp6: true but it's going also ipv4 to dhcp if i try like this..
Okay it seems like to work if i do like this: network: ethernets: eth0: adresses: - xxx.xxx.xxx.xx/xx gateaway4: xxx.xxx.xxx.xx nameservers: addresses: - xxx.xxx.xxx.xx - xxx.xxx.xxx.xx search: - domain.tld dhcp4: no dhcp6: true but now i got 2 IPv6 Adresses.. Both are not simmelar to other Devices on the LAN. For Example: Notebook: 2001:1620:xxx:0:xxxx:xxxx:4189:8006 Handy: 2001:1620:xxx:0:xxxx:xxxx:4189:8007 The Server: fe80::xxx:5dff:xxxx:7401 2001:1620:xxx:1:xxx:5dff:fe01:7401 also i want to do like on IPv6 to forward the Ports to the Server. Any ideas? May a Static Route?
If you use both IPv4 and IPv6 address on that Ubuntu host, it is multi homed host and you need to do settings accordingly. https://en.wikipedia.org/wiki/Multihoming Port forwarding is port forwarding, and static routes are static routes. I don't think you can replace one with the other. It is not clear, at least to me, what you are aiming at. Setting up your network is done in similar way whether you use IPv4 or IPv6. If you want both, read about multihoming. If you want more help, describe what is the desired end result you aim for, and tell more precicely what is now working, in what way it is not working and how you have verified it is not working. Also, please post the listings in CODE tags.
