Telephone exchange behind pfSense
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Hi!
I searched the whole day about the solution on google and found out noone has the sam problem?!?
Lets explain the situation:
I have a telephone exchange (Aastra 470) wich was located just behind the router and worked fine! Now I'm putting the company on vlans and in meanwhile as not all devices are switched over we have a Linksys router (RV082), behind it is pfSense on a supermicro entry server (atom D525) and behind pfSense is in a seperate vlan our exchange.
Phone exchange is registering with registrar, I can call out and the calls can get in BUT I have no audio!
I just got the forwardings over from my router (SIP 5060 and RTP 5005) but it seems not going through. As in the exchange were more ports stated I just forwarded all of them (5004-5043). Still nothing! Here are my settings:
The outbounds are set to static, but as I can see they are given dynamicaly?!?
Please help me!
Kind Regards,
BB -
The NO_TRAFFIC:SINGLE is the reason, that means the RTP was sent out and got nothing in response. Why is impossible to tell from that. There's something upstream of that system doing NAT obviously since you're NATing to a private IP there. It's probable it's related in some way to whatever is upstream from there.
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Change the source ports on the NAT Port Forwarding rules to allow any port. That should update the firewall rules as well, but if it doesn't you will need to change those.
The sender may be randomizing their source port, just like pfSense tries to do for outgoing traffic. It is normal network behavior.
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Sorry to answer that late!
Thank you for your possible solution. As I had no time yet to get into the problem again (changed back to the old system), I'll do some research later (probably tomorrow as it's Friday).
Regards, Bostjan