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FS#463 - up/down on a usbnet interfaces fails to reassign ULA addresses #5498

openwrt-bot opened this issue Feb 4, 2017 · 1 comment


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openwrt-bot commented Feb 4, 2017


Supply the following if possible:

  • Device problem occurs on: anything running usbnet
  • Software versions of LEDE release, packages, etc: head
  • Steps to reproduce:

Install the usbnet package, enable a usb0 device in /etc/config/network

(in my case this is a c.h.i.p, but most hackerboards except the pi do usbnet)

config interface 'usb0'
option ifname 'usb0'
option proto 'static'
option ipaddr ''
option netmask ''
option ip6assign '64'
option ip6class 'local'

So long as the chip beats the router to booting, this gives it an ipv4 and ipv6 ULA out of the pool.

Reboot the device on the other side. The kernel deregisters and registers the usbnet driver, and netifd assigns the ipv4 address again.

However the ip6 subnet that was assigned from the ula does not come back. Haven't tried it with a public address.

ifup/ifdown does not work and the ifstatus usb0 does not show any ipv6 addresses assigned.

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openwrt-bot commented Feb 4, 2017


ifdown/ifup (does not reassign the ipv6 addr), to clarify.

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