04.01.2018 23:59, dpr...@deepplum.com пишет: > I've been having problems with NetworkManager dhcp on my Fedora27 Workstation > (desktop, wired).. Note, because I'm using VMs on that workstation, the > interface is a bridge (br0 with slave eno1). > > What seems to happen is this: > > Workstation wakes up from sleeping, reactivates connection. > > dhclient issues 4 DHCPDISCOVER tries, none of which get a response. > > the interface state changes "unknown-->timeout->done", and the DHCPv4 > transaction is cancelled. > > A restart is scheduled for 120 seconds later. > > The restart 120 seconds later succeeds with DHCPDISCOVER, DHCPREQUEST, > DHCPOFFER, DHCPACK. >
One possible reason is spanning tree on switch port, in which case there is timeout before port goes in forwarding state. > All the other machines served by my DHCP server have no problems at all, > however, they are MacBooks, various storage servers, and RaspberryPis. > > It seems to be that NetworkManager somehow interferes with the DHCPDISCOVER > after the workstation wakes up. > > The attached log file shows this sequence of events. > > (I'm wondering if there is a timing issue because the first dhclient call is > issued when eno1 is in the "unavailable" state, and before it is captured as > a > slave to br0) > > > > _______________________________________________ > networkmanager-list mailing list > networkmanager-list@gnome.org > https://mail.gnome.org/mailman/listinfo/networkmanager-list > _______________________________________________ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
