Local address Asterix to specific SIP public address and vice versa , how?

Hi,

Asterix 192.168.1.2---------192.168.1.1(MT)1.1.1.1-----------INternet - 2.2.2.2 SIP Server



My question is how I can told MT that 192.168.1.2 only can get 2.2.2.2 and 2.2.2.2 can only get 192.168.1.2
I dont want that any other IP from local network or Internet public IP can get Asterix.
Port what I need 5060 for SIP and some ports for RTP, if need be.


THx
Tomislav

You will need NAT and Filter rules in the firewall.

Yes, I know that, but I need some example, because my config not work.