I just upgraded my EdgeRouter lite from 1.9.0 to 1.9.1 and discovered I had no more Internet.
Using the command line "show interfaces pppoe pppoe0" it showed "pppoe: Coming Up"
The logs showed:
Jan 1 01:08:46 router pppd[2091]: pppd 2.4.4 started by root, uid 0 Jan 1 01:08:49 router rsyslogd: set SCM_CREDENTIALS failed on '/dev/log': Protocol not available Jan 1 01:08:56 router dhcpd: WARNING: Host declarations are global. They are not limited to the scope you declared them in. Jan 1 01:09:05 router radvd[2334]: no auto-selected prefix on interface eth0, disabling advertisements Jan 1 01:09:07 router radvd[2335]: exiting, 1 sigterm(s) received Jan 1 01:09:07 router radvd[2336]: Exiting, privsep_read_loop had readn return 0 bytes Jan 1 01:09:07 router radvd[2356]: no auto-selected prefix on interface eth0, disabling advertisements Jan 1 01:09:07 router radvd[2356]: no auto-selected prefix on interface eth0.14, disabling advertisements Jan 1 01:09:11 router radvd[2357]: exiting, 1 sigterm(s) received Jan 1 01:09:11 router radvd[2358]: Exiting, privsep_read_loop had readn return 0 bytes Jan 1 01:09:11 router radvd[2415]: no auto-selected prefix on interface eth0, disabling advertisements Jan 1 01:09:11 router radvd[2415]: no auto-selected prefix on interface eth0.14, disabling advertisements Jan 1 01:09:11 router radvd[2415]: no auto-selected prefix on interface eth2, disabling advertisements Jan 1 01:09:37 router pppd[2091]: Timeout waiting for PADS packets Jan 1 01:09:44 router ntpd_intres[1944]: host name not found: 0.ubnt.pool.ntp.org Jan 1 01:09:44 router ntpd_intres[1944]: host name not found: 1.ubnt.pool.ntp.org Jan 1 01:09:44 router ntpd_intres[1944]: host name not found: 2.ubnt.pool.ntp.org Jan 1 01:09:44 router ntpd_intres[1944]: host name not found: 3.ubnt.pool.ntp.org Jan 1 01:10:12 router pppd[2091]: Timeout waiting for PADO packets Jan 1 01:11:27 router pppd[2091]: Timeout waiting for PADO packets
The suddenly, when I was trying to troubleshoot, pppoe did come up, but with no IPv6. When I tried to restart radvd it told me that radvd.conf was empty.
I upgraded from a system image with the name:
ER-e100.v1.9.1.4939093
When I switched the running image back to 1.9.0 everything was well again.
My config is attached.