Public bug reported: Binary package hint: dhcdbd
After installing NetworkManager it detects ethernet cable and wireless networks. But when registering in the network, NetworkManager fails to receive IP from DHCP server. Here is the part of /var/log/syslog: Jun 29 04:14:28 localhost NetworkManager: <information>^IActivation (eth0) Beginning DHCP transaction. Jun 29 04:14:28 localhost NetworkManager: <information>^IActivation (eth0) Stage 3 of 5 (IP Configure Start) complete. Jun 29 04:14:28 localhost NetworkManager: <information>^IDHCP daemon state is now 12 (successfully started) for interface eth0 Jun 29 04:14:29 localhost dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 Jun 29 04:14:29 localhost dhclient: DHCPOFFER from 172.16.0.1 Jun 29 04:14:29 localhost dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67 Jun 29 04:14:29 localhost dhclient: DHCPACK from 172.16.0.1 Jun 29 04:14:29 localhost dhclient: bound to 172.16.0.12 -- renewal in 265757 seconds. Jun 29 04:14:37 localhost kernel: [17439882.524000] eth0: no IPv6 routers present Jun 29 04:15:13 localhost NetworkManager: <information>^IDevice 'eth0' DHCP transaction took too long (>45s), stopping it. Jun 29 04:15:13 localhost dhclient: DHCPRELEASE on eth0 to 172.16.0.1 port 67 Jun 29 04:15:14 localhost NetworkManager: <information>^IActivation (eth0) Stage 4 of 5 (IP Configure Timeout) scheduled... Jun 29 04:15:14 localhost NetworkManager: <information>^IDHCP daemon state is now 14 (normal exit) for interface eth0 Jun 29 04:15:14 localhost NetworkManager: <information>^IDHCP daemon state is now 14 (normal exit) for interface eth0 Jun 29 04:15:14 localhost NetworkManager: <information>^IActivation (eth0) Stage 4 of 5 (IP Configure Timeout) started... Jun 29 04:15:14 localhost NetworkManager: <information>^INo DHCP reply received. Automatically obtaining IP via Zeroconf. Jun 29 04:15:14 localhost NetworkManager: <information>^Iautoip: Sending probe #0 for IP address 169.254.108.117. Jun 29 04:15:14 localhost NetworkManager: <information>^Iautoip: Waiting for reply... As you see, dhclient detects IP correctly (172.16.0.12), but NetworkManager fails to accept this IP and uses 169.254.108.117 instead. This results in non-working network connection, so I have to manually run dhclient and get a correct IP. ** Affects: dhcdbd (Ubuntu) Importance: Untriaged Status: Unconfirmed -- NetworkManager doesn't understand DHCP https://launchpad.net/bugs/51283 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs