Hi everyone.
Sorry I am a newer on Cisco FTD. I have an issue with rtp traffic. We have some branches (spokes) and thay all communicate with each other over Data Center (Hub). Behind the Spoke-1 We have a CME and some branches (for example Spoke-3) phones registering on this Call Manager, also some phones in Spoke-1 (vlan 77) also registering there. We have another CUCM on the Hub side, and some phones from Spoke-1 and all phones from Spoke-2 registering there.
voice vlan for CME is 77 with subnet 192.168.x.0/24
voice vlan for CUCM in Spoke-1 is 88 with subnet 192.168.y.0/24
voice vlan for CUCM in Spoke-2 is 18 with subnet 192.168.z.0/24
All traffic going through IPsec tunnels. on the Hub side we use Cisco FTD. Spoke-1 use Cisco ASA 5525x, Spoke-2 and Spoke-3 use Cisco Router ISR 4331 with security license respectively.
Spoke-3 can communicate with Spoke-1 and Spoke-2 and voice traffic is passes (and vice versa). But Spoke-1 which use vlan 88 cannot communicate with Spoke-2 which use vlan 18 and voice traffic dont passes.
I hope I could explain this situation.