odhcp6c: add option to ignore Server Unicast option

openwrt / odhcp6c

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odhcp6c: add option to ignore Server Unicast option #57

Closed koalatux closed 6 years ago

koalatux commented 6 years ago

My ISP has a problem and odhcp6c never gets a reply to renew messages, if sent to the server's unicast address, so I added this option as a workaround to ignore the Unicast Server Option. With that all renew messages are sent to the multicast address.

The problem is further discussed here: https://forum.turris.cz/t/turris-os-3-10-dhcpv6-loses-address-after-1-hour/7391

I can send you pcap files if you want.

Cheers, Adi

dedeckeh commented 6 years ago

Patch pushed to master with some tweaks (https://git.openwrt.org/?p=project/odhcp6c.git;a=commit;h=67ae6a71b5762292e114b281d0e329cc24209ae6); thx