elper-rtsp But obviously a missing kernel patch isn't fixable by an MT admin. Seems it's a kernel patch that's likely missing in the kernel that RouterOS uses. What I do know is OpenWRT does support an ALG for RTSP. I don't deal with cameras that often, but avoid ever needing ALG for anything. Nope, it SIP ALG needs at least some SIP BEFORE fixing the SDP fields (which is used by BOTH SIP and RTSP) – so overloading the SIP ALG is NOT a workaround here. It's not directly listed in IP>Firewall>Service Ports under 7.2rc3.īut have you tried using the "sip" ALG there with your RTSP port listed? ALG really deals with SDP, so the "sip" ALG may not care it's actually RTSP. And, if it is already implemented in a weird obscure manner, please let us know, we will be glad to keep learning. So please, if it is in your hands, do implement it, for Gods shake. But the lack of this feature is a very annoying thing we have been suffering from quite a long time already. You have a very nice community of users loving your products in Spain. Guys from MikroTik, please take this request seriously. Or it is just a totally forgotten feature, because nobody else uses. My only guess is this is already implemented in a way we don’t understand, and we are just stupid not finding it out. With the helper, the random negotiated ports for UDP RTSP traffic will be automatically mapped to the source IP opening this connection, but, as we don’t know these port range in advance, we cannot use, as far as I could understand from the last comment, the SIP ALG.Ĭorrect me if I’m wrong, we may be totally wrong and missing some magic hidden feature, but after squeezing my brain a lot, I can’t figure out how to workaround the lack of this very basic feature you can find, in other hand, in cheap crappy routers, but not in MikroTik. Flow starts with a tcp packet to 554 that can identify in mangle and mark accordingly, but all we can do later is to DMZ all traffic to the source IP opening this communication, due to the lack of this helper, with the help of a script.īut, if you have more than one tv box (very common), you need script constantly running for doing this tricky NAT mapping, alternating between destination IPs. This ISP uses this helper for mapping UDP ports for IPTV on demand traffic. The lack of this feature is negatively affecting to all MikroTik users in Spain, under the major ISP provider in this country, Movistar. We definitely need this to be implemented in RouterOS v7.
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