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I only get this if I try to run it manually. The daemon seems up and running now.

I tried the patch from here as you were referencing this issue but it didn't solve it for me. Still get

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IP_ADD_MEMBERSHIP: 192.168.4.1 255.255.255.255
IP_ADD_MEMBERSHIP on rcv: Invalid argument


To be sure... can you run this from the console?

# pluginctl -m

Thanks Franco for the feedback. I ran it but it didn't return anything and it didn't change the behaviour.

Hey guys,

I'm not sure if you take report for plugins but since the upgrade to 26.1 the updbroadcastrelay plugin refuses to start. Trying to run it manually I get these errors. I use to run it manually for debugging rules so I know it used to work.

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/usr/local/sbin/udpbroadcastrelay --id 1 --dev vlan0.2 --dev vlan0.4 --dev vlan0.5 --dev vtnet1 --port 21027 --multicast 255.255.255.255 -d
udpbroadcastrelay v1.3.00 built on Jan 14 2026 03:29:25
Debugging Mode enabled
ID set to 1
Port set to 21027
ID: 1 (DSCP: 1, ToS: 0x04), Port 21027
vlan0.2: 9 / 192.168.2.1 / 192.168.2.255
vlan0.4: 11 / 192.168.4.1 / 192.168.4.255
vlan0.5: 12 / 192.168.5.1 / 192.168.5.255
vtnet1: 2 / 192.168.10.1 / 192.168.10.255
found 4 interfaces total
IP_ADD_MEMBERSHIP: 192.168.2.1 255.255.255.255
IP_ADD_MEMBERSHIP on rcv: Invalid argument
Let me know if you need more info to debug.

Thanks for the amazing work you're doing !
LeTic