ERROR[init_mproxy4@332]: can't create igmp socket

[eduarmen]

Hi,
I need to forward IGMPv3 messages from enp0s8 to enp0s9, my .conf is this:

igmp enable version 3
mld enable
upstream enp0s8
downstream enp0s9

But I get the following error:

DEBUG[main@580]: logLevel = 5
DEBUG[load_config@76]: buffer = igmp enable version 3
DEBUG[load_config@94]: token is igmp
DEBUG[load_config@76]: buffer = mld enable
DEBUG[load_config@94]: token is mld
DEBUG[load_config@76]: buffer = upstream enp0s8
DEBUG[load_config@94]: token is upstream
DEBUG[load_config@185]: upstream interface is enp0s8
DEBUG[load_config@76]: buffer = downstream enp0s9
DEBUG[load_config@94]: token is downstream
DEBUG[load_config@194]: downstream interface is enp0s9
DEBUG[init_interface@189]: enp0s9's ipv6 address is fe80::a00:27ff:feff:4040
DEBUG[init_interface@195]: if_index = 4
DEBUG[init_interface@208]: if_mtu = 1500
DEBUG[init_interface@214]: if_falgs = 4163
DEBUG[init_interface@189]: enp0s8's ipv6 address is fe80::a00:27ff:fe89:fa25
DEBUG[init_interface@195]: if_index = 3
DEBUG[init_interface@208]: if_mtu = 1500
DEBUG[init_interface@214]: if_falgs = 4163
DEBUG[init_interface@178]: enp0s9's ipv4 address is 192.168.2.2
DEBUG[init_interface@195]: if_index = 4
DEBUG[init_interface@208]: if_mtu = 1500
DEBUG[init_interface@214]: if_falgs = 4163
DEBUG[init_interface@178]: enp0s8's ipv4 address is 192.168.1.1
DEBUG[init_interface@195]: if_index = 3
DEBUG[init_interface@208]: if_mtu = 1500
DEBUG[init_interface@214]: if_falgs = 4163
ERROR[init_mproxy4@332]: can't create igmp socket
ERROR[main@619]: exiting.........

Do you have an idea why igmp socket can be created?

Running on Ubuntu VM:

description: Computer
width: 64 bits
capabilities: vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 16GiB
*-cpu
product: Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
width: 64 bits

Thanks

[haibbo]

1, run it with sudo
2, replace

IMP_LOG_ERROR("can't create igmp socket\n");

to

perror("can't create igmp socket")

you will get more error message