[FS#1462] odhcp6c fails to renew and rebind addresses

[LEDE Bugs]

The following task has a new comment added:

FS#1462 - odhcp6c fails to renew and rebind addresses
User who did this - Clemens Fruhwirth (clefru)

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Thanks for detailed analysis, Hans. From RFC 3315/Sec. 18.1.4 "Creation and Transmission of Rebind Messages":


   The message exchange is terminated when the valid lifetimes of all
   the addresses assigned to the IA expire (see section 10), at which
   time the client has several alternative actions to choose from; for
   example:

   -  The client may choose to use a Solicit message to locate a new
      DHCP server and send a Request for the expired IA to the new
      server.

   -  The client may have other addresses in other IAs, so the client
      may choose to discard the expired IA and use the addresses in the
      other IAs.

I would argue that this gives justification for having the client give up on the rebind conversation, as some timeout should eventually be hit. I am not going to argue this further, as I don't feel qualified. It just feels odd that this is not self-healing and I have to restart the DHCP client when it degenerates.

Thanks again for your remarks. I'll report this to my ISP.
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1462#comment4646