dhcrelay listen at all ifs but should only on dedicated ifs

[IMMO WETZEL]

I´m running dhcrelay 4.3.5

My start line is 
# dhcrelay -4 -d -iu br_TB104_TMN  -id br_TB104_DUT 10.160.50.50
But dhcrelay is listen  on all if´s like I specified nothing specific
    
    Requesting: br_TB104_TMN as upstream: Y downstream: N
    Requesting: br_TB104_DUT as upstream: N downstream: Y
    Internet Systems Consortium DHCP Relay Agent 4.3.5
    Copyright 2004-2016 Internet Systems Consortium.
    All rights reserved.
    For info, please visit https://www.isc.org/software/dhcp/
    Listening on LPF/docker0/02:42:38:0e:27:5a
    Sending on   LPF/docker0/02:42:38:0e:27:5a
    Listening on LPF/br_TB991_DUT/42:b9:9b:1e:1c:c9
    Sending on   LPF/br_TB991_DUT/42:b9:9b:1e:1c:c9
    Listening on LPF/br_TB104_DUT/42:b9:9b:1e:1c:c9
    Sending on   LPF/br_TB104_DUT/42:b9:9b:1e:1c:c9
    Listening on LPF/br_TB104_TMN/7a:59:88:45:a6:23
    Sending on   LPF/br_TB104_TMN/7a:59:88:45:a6:23
    Listening on LPF/br_TB104_TMN/7a:59:88:45:a6:23
    Sending on   LPF/br_TB104_TMN/7a:59:88:45:a6:23
    .
    A lot more coming here
    .
    Sending on   Socket/fallback
    Discarding packet received on ens19.2002.4090 interface that has no IPv4 address assigned.
    Dropping request received on br_TB102_DUT
    Discarding packet received on ens20.1002 interface that has no IPv4 address assigned.
    .

Whats is wrong here with the start line ? 


Mit freundlichen Grüßen / With kind regards

Immo Wetzel

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