How to keep ifconfig ... allmulti after reboot?

Question

linux

For normal operation of multicasts in a local network, it is required to use the MULTIALL flag for the network interface. This is perfectly solved with ifconfig ... allmulti, but the flag flies after a reboot. How to make sure that the flag does not fly off after a reboot?

# ifconfig
enp3s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:13:77:b9:7b:13  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 18  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1  (Local Loopback)
        RX packets 1499643  bytes 219515571 (209.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1499643  bytes 219515571 (209.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp2s0: flags=4675<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.2  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::225:56ff:fe26:2379  prefixlen 64  scopeid 0x20<link>
        ether 00:25:56:26:23:79  txqueuelen 1000  (Ethernet)
        RX packets 161318  bytes 53252337 (50.7 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 106824  bytes 32582246 (31.0 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

# cat /etc/network/interfaces

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

Answer 1

put in /etc/rc.local command ifconfig ... allmulti

Answer 2

I can't say for Linux, but in FreeBSD it is stored in /etc/rc.conf; and in /etc/defaults/rc.confthere are examples of using most of the available designs.
Probably, in Linux you need to find where the IP address of the computer is stored. And there d.b. place to enter other parameters.