Description of problem:
Vodafone k3805-z requires "ifconfig usb0 -arp" prior to connecting to achieve connectivity
Version-Release number of selected component (if applicable):
0.4.998 - 1.git20110706.fc15
Steps to Reproduce:
1. plug usb modem and workaround whatever needed to connect (#697122)
2. try to ping/access some site
Nothing happens (Wireshark shows ARP requests being sent to every IP one tries to connect with)
Ping should be successful.
$ route -n [with or without NOARP]
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 usb0
Also, the driver on Windows 7 has an option which says "Enable promiscuous mode" (?on a 3G pen?) which, after enabled, results on the same behavior as if one does "ifconfig usb0 arp" on Linux.
I can confirm this bug, with this hardware.
The "ifconfig usb0 -arp" workaround works.
Huh, quite odd. Probably something we should do for all 3G devices that provide eth ports, since they are all acutally point-to-point underneath. I have just bought a K3805z off ebay that I can use to test this out when it arrives.
@Dan Williams : Hello! Just to point out you will also find bug #745454 if using Gnome-Shell ;)
Also, I don't know if all devices are affected. Looking at https://github.com/andrewbird/wader/blob/master/resources/udev/99-wader-quirks.rules you can see a relatively small list of quirks.
(that URL is the temporary Git repo of Vodafone's https://forge.betavine.net/projects/bcm (which curiously is hidden from public project list), as the result of the migration off SVN https://forge.betavine.net/forum/forum.php?forum_id=245 )
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At least on Fedora 18, the device is now recognized as "wwan0" and no longer requires ifconfig INTERFACE_NAME -arp .