On Thursday 14 May 2015 04:45:38 meino.cra...@gmx.de wrote: > Hi, > > I have a problem with some kind of a lokal net connection (ethernet > over USB):
I think that the problem is not network related, but USB rules related. Please see below. > Current handling is as follows: > I boot my Gentoo-Linux PC, which connects to my Fritz!Box, collect > EMail etc...works fine so far. > Then I connect an embedded system (Arietta G25 > www.acmesystems.it/arietta) to the usb port and wait until this > little thing has booted. > On my Linux PC I do the following then (as root): > > ifconfig usb0 192.168.10.1 up > echo 1 >! /proc/sys/net/ipv4/ip_forward > iptables -A FORWARD -i eth1 -j ACCEPT > modprobe ip_tables > modprobe ip_conntrack > iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE > ssh -t root@ariettaa abduco -A root > > (I real life I have two Ariettas which I connect to the > PC the same time with two different IP-addresses and two > different USB-ports) > > This connects me finally to the Arietta, which do ethernet over USB. > I put the commands into a script, so not too much hassle here. > > But! > On the Arietta I also installed Gentoo. An update, especially > when it includes gcc can take up to three days (I tried > crosscompilation and some other construction and I am currently > most happiest (sounds a litte too much like 'german english'...;) > with this). > So I first fetch all needed files and then restart the update > and detach from the terminal. > > Now the problem: > When I shutdown the PC, which needs not to run all the time, and > restart it later again I am no longer able to connect to the Arietta > with the steps described above. All needed modules are loaded while > booting the PC and ifplugd is installed on the Arietta. > > Unfortunately I have not found any differences of the USB interface, > which would make it possible to handle the Ariettas via udev. Have you used 'udevadm monitor' to check how your USB device is recognised? Each time it will be a different host & target and this is your problem. > How can I make a reconnect after rebooting my PC possible every time? I think that the solution is to create a udev rule which will identify your arietta interface when plugged in the PC and run the necessary script from there on. Have a look here for persistent device naming: https://wiki.gentoo.org/wiki/Udev -- Regards, Mick
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