Here is the setup i want to install but not sure what if possible and want configuration changed are required on Firewall and Asterisk server.
I have 2 sites, both behind FW and connected via VPN through internet.
In Site A:
FWA Inside address: 192.168.0.1/24
FWA Outisde address: x.x.x.x (dynamic public address at the moment)
SIP server: 126.96.36.199
Soft Phone: 192.168.0.3
VoiP Phone: 192.168.0.4
In Site B:
FWB Inside address: 192.168.1.1/24
FWB Outisde address: x.x.x.x (dynamic public address at the moment)
Soft Phone: 192.168.1.3
Phone in site A can register ok to SIP server.
But softphone in site B unable to register to SIP server.
ping from phone B, 192.168.1.3 to SIP server 188.8.131.52 work fine.
SIP server is used only to make calls inside VPN only, no calls from public ip address should be expected.
Which port do i need to open on each FW A and B ?
What do i need to modify on Asterisk ?
Do i need public static ip address for FW outisde @ ?
I’ve read about port forwarding on FW. Do i need to implement this ?
Thank you very much in advance for support.