thanks dear for your reply, let me give you more details which will give you a better image,
i'm trying to configure VOIP trunks with a VOIP-SP, the setup is like this:
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i have two nated IPs MIP(x.x.x.34) for 192.168.1.1 and MIP(x.x.x.35) for 192.168.1.1
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policies:
Trust to Untrust
192.168.1.1 to VOIP-SP (source nat option on the policy is enabled)
Untrust to Trust
VOIP-SP to MIP(x.x.x.34)
VOIP-SP to MIP(x.x.x.35)
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the VOIP-SP is sending RTP Traffic to x.x.x.35 and SIP-signaling Traffic to x.x.x.34 , i recieve the traffic successfully.
the issue is, when initiating outbound traffic from 192.168.1.1 to VOIP-SP the traffic should take x.x.x.34 as a source nat towards VOIP-SP, but the logs are showing that the outbound traffic is taking x.x.x.35 as a source nat towards VOIP-SP , and i dont have the option on the policy(from trust to untrust) to enforce the outbound traffic to use x.x.x.34
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i think the MIP is not the optimal solution for my requirements, but i need another solution will give the same setup as above.