Dropping reply received on <downstream interface> when using -iu/-id

Patrick Cervicek patrick at freifunk-stuttgart.spamtrap.hs-esslingen.de
Thu Jan 4 17:41:26 UTC 2018

> I
> seem to recall tcpdump showing me that DHCP packets were moving in the
> correct directions also.

Could you check tcpdump on your relay host as follow please:

tcpdump -i br-lan host and udp port 67

tcpdump -i br-guest host and udp port 67

with #1 you should only see message between your relay host and server

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