eg2100-p v2 to PBX problem

Hi
I currently have eg2100-p v2 setup and configured with VLANS.

LAN2 bridged with other LAN ports.
LAN2 has sub-interface VLANS

LAN2 172.16.8.1
Vlan10 data 172.16.10.1
Vlan20 CCTV 172.16.20.1
Vlan80 IP Phone 172.16.80.1

DHCP configured and working well when tested.

PBX with IP 172.16.80.30 is connected at LAN2

Problem
1) When i connect PBX directly to LAN2, i cannot access PBX and it does not ping.
2) When i connect managed switch with configured vlans and access on LAN2, and connect PBX at managed switch port 1 with VLAN80 access. I can access and ping PBX.

I want to connect my PBX directly to
eg2100-p as i do not want to use switch in between.

Dear sir,


I want to connect my PBX directly to

eg2100-p as i do not want to use switch in between.
---In this situation, please let your PBX use
LAN2 172.16.8.x ip range

GTAC-Daisy replied at 2022-8-9 11:11
Dear sir,

hi.
i do not want my PBX to be in the same network as the router.
I want my PBX to be in VLAN80 network as i have set up my IP Phones to be in VLAN 80