OPNsense Forum

English Forums => General Discussion => Topic started by: tomasz_skoczek on March 08, 2023, 03:52:46 pm

Title: Multicast
Post by: tomasz_skoczek on March 08, 2023, 03:52:46 pm

can anyone run multicast on lan between vlans

Title: Re: Multicast
Post by: tomasz_skoczek on March 08, 2023, 03:57:31 pm

I have opnsense and cisco switches

on vlan 999 i have sender on vlan 10 i have reciver

Now i configure Cisco router an multicast between vlans working
On cisco route i only do
ip multicast-routing distributed
and on
interface gi0/0/0.10
 ip pim dense-mode

interface gi0/0/0.999
 ip pim dense-mode


Opensense i configured
igmp-proxy

upstreem vlan999
downstreem vlan10

not working i tested by

on server
sockperf server -i 224.4.4.4 -p 1234

on client
sockperf ping-pong -i 224.4.4.4 -p 1234

Title: Re: Multicast
Post by: zan on March 09, 2023, 03:44:10 am

Have a look at UDP Broadcast Relay https://forum.opnsense.org/index.php?topic=15721.0

Title: Re: Multicast
Post by: FraLem on March 10, 2023, 08:13:48 pm

Hi there, one solution would be to use IGMP Proxy. One VLAN as upstream, second Vlan as downstream. Do not forget to select allow options on the firewall rule.
Rgds