[FS#964] odhcpdIPv6 node(Win 10) stops sending Router Solicitation but it still receives RAs from LEDE

[LEDE Bugs]

The following task has a new comment added:

FS#964 - odhcpdIPv6 node(Win 10) stops sending Router Solicitation but it still receives RAs from LEDE
User who did this - Hans Dedecker (dedeckeh)

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The attached logs don't reveal any issue.
It would be interesting to see if odhcpd still transmits RA messages when the default gateway issue is observed and what router lifetime is included in the RA messages.
Therefore set odhcpd loglevel to 7 in uci (uci set dhcp.odhcpd.loglevel=7) which will make odhcpd more verbose; traces can be read via logread

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=964#comment3251