How set igmp version to 2 in igmp-proxy?

Or how set net.ipv4.conf.all.force_igmp_version=2 in sysctl.conf?

My ISP dont send any igmp qeuries, because of this igmp-proxy dont switch to version 2.
Presently no way to set igmp version in igmp-proxy.

Thank mikrotik support to detect this behavior my ISP.

By default, IGMP proxy upstream interface will send IGMPv3 membership reports and it will detect what IGMP version the upstream device (e.g. multicast router) is using based on received queries. In case IGMPv1/v2 queries are received, the upstream port will fallback to lower IGMP version. It will convert back to IGMPv3 when IGMPv1/v2 querier present timer (400s) expires. Downstream interfaces of IGMP proxy will only send IGMPv2 queries.

https://wiki.mikrotik.com/wiki/Manual:R ... IGMP-Proxy

So probably no way to set the default yourself