Fortigate 80c second ip question

[Vernon76]

Hi all, I have a fortigate 80c that gives ip addresses to ip phones and pc's in range of 175.50.60.50- 175.50.60.150 from the internal side.

The pbx is 175.50.60.5 lan side, on wan1 I have 182.168.54.2 from isp provider and 175.50.60.1 for the firewall

I want to add a second ip in the firewall, so that I can  add a sip trunk from the a provider on the wan side on the of the pbx.

Is this possible to add a second Ip on the internal side of the pbx with for example 192.168.40.1 and give the wan side of the pbx 192.168.40.5?

thank you in advance

[Johan_Witters]

Hi Vernon,

if I understand the setup correctly you won't need a 2ndary ip address.

WAN1: ISP in dhcp mode

WAN2: connected to wan-port of PBX

Internal: connected to internal network (incl. voice system)

You can just configure a private address for the link between WAN2 and the PBX wan port. Next, add a VIP (virtual ip) with the public address you want to forward to the PBX and link that to a policy WAN1 -> WAN2. I think that should cover it.

[Vernon76]

Thank you Johan, I will try it out and let you know.

Krs