edit, simplified the scenario, same problem
On eth1 I'm receiving traffic which is actually a pcap playback from another machine. The recording contains udp traffic sent between 198.20.4.1 (biderectional) and 198.20.4.4
Intention is to tap the traffic and be able to act on the udp messages as a normal application (read only)
eth1/vlan100/198.20.4.1 (a)
eth1/vlan200/198.20.4.4 (b)
Setting up vlan works perfectly if I only configure either a or b.
As soon as I configure the second one traffic stops flowing to any (a) or (b)
I'm surely missing something obvious here. Please help.
edit I understand that from the linux networking stack as soon as (b) is assigned 198.20.4.4 there are duplicate ip present on the network, one from the playback, and one configured on the vlan.
Surely this is not a unique thing i'm trying to achieve here
