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FS#2830 - MikroTik RB951G-2HnD does not boot #6251

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openwrt-bot opened this issue Feb 10, 2020 · 0 comments
Open

FS#2830 - MikroTik RB951G-2HnD does not boot #6251

openwrt-bot opened this issue Feb 10, 2020 · 0 comments
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nathansamson:

Supply the following if possible:

  • MikroTik RB951G-2HnD
  • Tried 19.07.1 and 18.06.7

Steps to reproduce

  • Network boot from port 1
  • Have another device connected to network port 2
  • See it sometimes (so far it happened 2 times out of approx 10 tries) ask for a network address after finishing loading the initramfs image
  • When it has assigned an IP, it also gives away IP's to connected clients
  • Running ping from a client gives approx 95% packet loss

Note on https://openwrt.org/toh/mikrotik/rb951g_2hnd it mentions the gigabit switch doesn't work properly without a patch
Note I tried compiling a patch for 19.07.1 (same result), or even loading in the kernel module built into the initram fs image (self built) (https://github.com/fluciotto/openwrt-kmod-rb951g-2hnd-eth-fix)
but neither options seem to have any improvement.

Note the wiki page mentions only rev 3 needs this patch

The new version (rev 3, requires patch) can apparently be distinguished from the old version (rev 2, works out-of-the-box) by the MAC address:

   The old one starts with D4:CA:6D
   The new one starts with 4C:5E:0C

My Mac Address starts with 74:4D:28. So either this is a newer revision (which might need a different patch?) or they ran out of mac address space, and the same HW revision has added another range...

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