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Issue created by Bjørn Bürger@motp

IPv6 config on mobile broadband fails with "failure 13"

Dear Maintainers,

I am using Network Manager on Debian unstable.

After upgrading network-manager from version 1.34.0-2 to 1.35.91-1 or higher, NetworkManager fails to set the IPv6 addresses, received via mobile broadband connection.

  • Downgrading to 1.34.0-2 immediately fixes the problem.
  • All later Versions, starting with 1.35.91-1 are affected
  • contents of journal:
------------  schnipp ---------------

[...] device (cdc-wdm1): Activation: starting connection 'T-Mobile IPv6 only' (...)
[...] audit: op="connection-activate" uuid="..." name="T-Mobile IPv6 only" pid=1635 uid=1000 result="success"
[...] device (cdc-wdm1): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
[...] manager: NetworkManager state is now CONNECTING
[...] device (cdc-wdm1): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
[...] device (cdc-wdm1): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
[...] device (cdc-wdm1): retrieving IP configuration failed: modem IP method unsupported
[...] modem-broadband[cdc-wdm1]: IPv6 base configuration:
[...] modem-broadband[cdc-wdm1]:   address 2a01:598:99b8:8a19:3964:a9a3:911d:89a3/64 lft forever pref forever lifetime 113-0[0,0] src unknown (slaac disabled)
[...] modem-broadband[cdc-wdm1]:   gateway 2a01:598:99b8:8a19:d85c:74aa:b2a2:5c8
[...] modem-broadband[cdc-wdm1]:   DNS 2a01:598:7ff:0:10:74:210:221
[...] modem-broadband[cdc-wdm1]:   DNS 2a01:598:7ff:0:10:74:210:222
[...] platform-linux: do-add-ip6-address[4: 2a01:598:99b8:8a19:3964:a9a3:911d:89a3]: failure 13 (Keine Berechtigung)
									             ^^^^^^^^^^
										     ||||||||||

[...] device (cdc-wdm1): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
[...] device (cdc-wdm1): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
[...] device (cdc-wdm1): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
[...] manager: NetworkManager state is now CONNECTED_LOCAL
[...] manager: NetworkManager state is now CONNECTED_SITE
[...] policy: set 'T-Mobile IPv6 only' (wwan0) as default for IPv6 routing and DNS
[...] device (cdc-wdm1): Activation: successful, device activated.
[...] manager: NetworkManager state is now CONNECTED_GLOBAL

------------ schnapp ----------------

References:

bbu@spiff:~$ lsmod | egrep "qmi|mbim"
cdc_mbim               20480  0
cdc_wdm                32768  2 cdc_mbim
cdc_ncm                45056  1 cdc_mbim
usbnet                 57344  3 cdc_mbim,cdc_ncm,cdc_ether
usbcore               331776  21 usbserial,xhci_hcd,usbnet,snd_usb_audio,usbhid,snd_usbmidi_lib,qcserial,cdc_mbim,cdc_ncm,usb_storage,cdc_wdm,typec,usb_wwan,uvcvideo,btusb,xhci_pci,cdc_ether,uas,usbip_host
Edited by Bjørn Bürger
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