I see the following message in the debug for NM: Jan 04 07:02:19 server NetworkManager[1138]: <debug> [1546603339.8846] ndisc[0x5592e10188c0,"enp2s0"]: dhcp-level managed Which I presume is what leads to: 1138 ? Ssl 16:39 /usr/sbin/NetworkManager --no-daemon 26196 ? S 0:00 \_ /sbin/dhclient -d -q -6 -N -sf /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient6-enp2s0.pid -lf /var/lib/NetworkManager/dhclient6-90f5409c-bd23-48f But what in the following RA contents: Soliciting ff02::2 (ff02::2) on pc_bridge... Hop limit : 64 ( 0x40) Stateful address conf. : No Stateful other conf. : No Mobile home agent : No Router preference : medium Neighbor discovery proxy : No Router lifetime : 1800 (0x00000708) seconds Reachable time : unspecified (0x00000000) Retransmit time : unspecified (0x00000000) Source link-layer address: D4:6E:0E:64:62:B6 MTU : 1500 bytes (valid) Prefix : 2001:1234:525e:a700::/64 On-link : Yes Autonomous address conf.: Yes Valid time : 81098 (0x00013cca) seconds Pref. time : 37898 (0x0000940a) seconds Route : 2001:456:1d:6f8::/64 Route preference : medium Route lifetime : infinite (0xffffffff) Route : 2607:1234:f00f:cd00::/56 Route preference : medium Route lifetime : 81173 (0x00013d15) seconds Route : 2001:1234:525e:a700::/56 Route preference : medium Route lifetime : 81098 (0x00013cca) seconds Route : fd31:aeb1:48df::/48 Route preference : medium Route lifetime : infinite (0xffffffff) Recursive DNS server : fd31:aeb1:48df::2 DNS server lifetime : 6000 (0x00001770) seconds from fe80::d66e:eff:fe64:62b6 is leading NM to believe that it should be running dhclient? AFAIK, I have configured this subnet to be autoconfiguration only, which I suspect is what the "Stateful * conf. : No" is, but I could very well be mistaken about the interpretation of those fields. Cheers, b.
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