dhcrelay listen at all ifs but should only on dedicated ifs

[Patrick Cervicek]

> Just checked the mail I sent before. There is an IP on that bridge too
>
>
> 36: br_TB104_DPU: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
      ^^^^^^^^^^^^^

>> My start line is
>> # dhcrelay -4 -d -iu br_TB104_TMN -id br_TB104_DUT 10.160.50.50
                                         ^^^^^^^^^^^^^^^

So then you are using a non existent interface in your startline
Plase use br_TB104_DPU, NOT br_TB104_DUT