On Mon, Apr 27, 2020 at 11:59:25AM +0200, David Balažic wrote: > On Mon, 27 Apr 2020 at 04:14, Michael Richardson <mcr@xxxxxxxxxxxx> wrote: > > > > > > David Balažic <xerces9@xxxxxxxxx> wrote: > > > Sun Apr 26 17:34:57 2020 daemon.debug pppd[20289]: sent [IPV6CP > > > ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>] > > > Sun Apr 26 17:35:00 2020 daemon.debug pppd[20289]: sent [IPV6CP > > > ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>] > > > Sun Apr 26 17:35:03 2020 daemon.debug pppd[20289]: sent [IPV6CP > > > ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>] > > > Sun Apr 26 17:35:06 2020 daemon.debug pppd[20289]: sent [IPV6CP > > > ConfReq id=0x1 <addr fe80::d035:60ed:928e:f741>] > > > Sun Apr 26 17:35:09 2020 daemon.warn pppd[20289]: IPV6CP: timeout > > > sending Config-Requests > > > > Could this be the reason for the hangup? > > pppd gets tired of no IPv6, decides it should hangup? > > These lines are logged in the 30 seconds after the connection is > established. Later they never show up. It was like that for all > connections thus far. > Your provider doesn't support IPv6. As James pointed out, it isn't even capable of reporting that fact. So your device keeps trying for a few seconds. Nothing to worry about (appart that you won't have IPv6 connectivity of course). > > > The strange part is in the tcpdump there is a PADT sent to an > > > "unknown" MAC and my pppd responds. At least that is how I see it. > > > > > You think NOT putting the interface into promiscuous mode (done by > > > tcpdump) would prevent this? > > > Anyway, now I startted tcpdump with the -p option: tcpdump -e -v -p > > > -i eth1 vlan 3902 and pppoed > > > > It could be that promisc mode (no -p) means that the PADT makes something > > break, different than what you are investigating. -p avoid promisc mode, so > > would avoid seeing that packet. > > > > You mention in another thread that you were trying to do DHCPv6 on a > > different (non-PPPoE) interface. I don't see how that would matter unless > > the failure caused netifd to decide to retry it all. > > > > It seems that you ought to try the noipv6 option to pppd. > > I removed it (from the system config, the file /etc/config/network ). > I also removed that "other interface", so there is no IPv6 stuff left. > The new command line is: > /usr/sbin/pppd nodetach ipparam wan ifname pppoe-wan lcp-echo-interval > 1 lcp-echo-failure 5 lcp-echo-adaptive nodefaultroute usepeerdns > maxfail 1 user YYYYYY password XXXXX ip-up-script /lib/netifd/ppp-up > ip-down-script /lib/netifd/ppp-down mtu 1492 mru 1492 plugin > rp-pppoe.so nic-eth1.3902 > > For the record: The new connection with new settings was started on > Mon Apr 27 09:47:48 (UTC) >