[OpenWrt-Devel] Quectel RM500Q failing to get ip address assignment with netifd and modemmanager

Aleksander Morgado aleksander at aleksander.es
Sat May 16 03:18:46 EDT 2020


Hey!

> > > > root at localhost:~# mmcli -b 2
> > > >   --------------------------------
> > > >   General            |  dbus path:
> > > > /org/freedesktop/ModemManager1/Bearer/2
> > > >                      |       type: default
> > > >   --------------------------------
> > > >   Status             |  connected: yes
> > > >                      |  suspended: no
> > > >                      |  interface: wwan0
> > > >                      | ip timeout: 20
> > > >   --------------------------------
> > > >   Properties         |    roaming: allowed
> > > >   --------------------------------
> > > >   IPv4 configuration |     method: dhcp
> > >
> > > This is the issue here. It shouldn't say DHCP, it should say
> > > "static", because the WWAN network interface of all the new 5G
> > > modules are always in raw-ip instead of 802.3, and therefore MM
> > > should fallback to request static IP addressing instead of DHCP.
> > >
> > > Please try to backport the following fix:
> > > https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/commit/a8fd33ebaa80a0844c375fdb39173736d18f71cb
> > >
> > > I really haven't spent much time backporting 5G related fixes to the
> > > 1.12 branch, because they will all be released together in 1.14
> > > soon.
> > >
> >
> > I found it easier to switch my own setup to use the libqmi master
> > branch and modemmanager from the commit you mentioned. It works just
> > fine so far, wwan0 gets the correct address and the modem can ping
> > fine now.
> >
> > I attached the makefiles and patches I used for my openwrt build if
> > anyone needs them. In order to build the master branch, I also needed
> > to add
> >
> > https://github.com/autoconf-archive/autoconf-archive
> >
> > as a build dependency.
>
>
>
>
>
> I have another quick question about modemmanager support for the
> Quectel RM500Q. The commit a8fd33ebaa80a0844c375fdb39173736d18f71cb on
> the modemmanager git isn't in the current release. Will it be slated
> for the next release, and if so is there a rough time estimate as to
> when that will be?
>

If enough testing gets done with git master in the following weeks, we
can probably have a new stable 1.14 release at the beginning of June
or so. Please test with git master as much as you can!

-- 
Aleksander
https://aleksander.es

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