On Mon, Aug 19, 2019 at 10:49 AM Bjørn Mork <bj...@mork.no> wrote: > > Yegor Yefremov <yegorsli...@googlemail.com> writes: > > > I have a project where I'm using dhcpcd client. It is working without > > any problems with older modems like Quectel UC20 etc. But now we want > > to switch to SIM7600G-H and it is working in raw-ip mode. So far only > > udhcpc can handle such MAC address-less interfaces. > > > > Do you know what is so special about udhcpc compared to other DHCP > > clients? > > It's mostly L2 agnostic, meaning that it will work on non-ethernet > interfaces. > > "Fixing" this for other clients isn't really that hard, if required. I > did this proof-of-concept for ISC dhclient for example: > > > https://mail.gnome.org/archives/networkmanager-list/2015-December/msg00044.html
Thanks for the patch. But looks like it hasn't been upstreamed yet :-( Will dig further. Yegor > > Is there any raw-ip related documentation? > > Not really. Just delete "ethernet" from other documentation :-) > > The only difference is that the ethernet header is removed from the > packets between host and modem. It is not replaced by anything. > > We could have made up a new "ARP hardware type" for this, but I didn't > see much point. The "hardware type" is simply no header and no > address. So I went with the example from the tuntap driver, using > ARPHRD_NONE > > > > Bjørn _______________________________________________ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
