Public bug reported: I'm using network-manager 1.22.10-1ubuntu2.1 in Ubuntu Focal 20.04. After a connection the internal dhcp doesn't send request to dhcpv6 server. All options in NM are default. IPv4 is ok.
Using tcpdump I can see the packages: 17:47:38.428145 IP6 fe80::426e:5cc5:ab6b:e126.546 > ff02::1:2.547: dhcp6 solicit 17:47:38.428902 IP6 fe80::20e:1eff:fe7a:9ed0.547 > fe80::426e:5cc5:ab6b:e126.546: dhcp6 advertise After dhcp6 advertise the NM doesn't send any request. After some seconds I can see a timeout on logs. NetworkManager[3803]: <warn> [1591735670.9313] dhcp6 (eno1): request timed out NetworkManager[3803]: <info> [1591735670.9314] dhcp6 (eno1): state changed unknown -> timeout As man says, we can change the dhcp client. If I change /etc/NetworkManager/NetworkManager.conf adding [main] dhcp=dhclient so everything works nice. I think there is some problem with the internal dhcp client of NetworkManager. Tks ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1882849 Title: Doesn't send dhcpv6 request Status in network-manager package in Ubuntu: New Bug description: I'm using network-manager 1.22.10-1ubuntu2.1 in Ubuntu Focal 20.04. After a connection the internal dhcp doesn't send request to dhcpv6 server. All options in NM are default. IPv4 is ok. Using tcpdump I can see the packages: 17:47:38.428145 IP6 fe80::426e:5cc5:ab6b:e126.546 > ff02::1:2.547: dhcp6 solicit 17:47:38.428902 IP6 fe80::20e:1eff:fe7a:9ed0.547 > fe80::426e:5cc5:ab6b:e126.546: dhcp6 advertise After dhcp6 advertise the NM doesn't send any request. After some seconds I can see a timeout on logs. NetworkManager[3803]: <warn> [1591735670.9313] dhcp6 (eno1): request timed out NetworkManager[3803]: <info> [1591735670.9314] dhcp6 (eno1): state changed unknown -> timeout As man says, we can change the dhcp client. If I change /etc/NetworkManager/NetworkManager.conf adding [main] dhcp=dhclient so everything works nice. I think there is some problem with the internal dhcp client of NetworkManager. Tks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1882849/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp