OpenVPN >pfsense > IPsec> pfsense2 > lan2 can't see lan2

[Gec]

Please someone write me exactly which menu to enter and what to write to be able to access the networks 192.168.10.1, 192.168.5.1, 192.168.15.1
I have 3 roters pfsense. First is main (192.168.3.1). He is connected with ipsec with router1 (192.168.10.1) and ipsec with rouret2 (192.168.5.1)
When i connected with openvpn in 192.168.3.1 i can see only lan 192.168.3.0. I want see lan 192.168.10.0, 192.168.15.0 and 192.168.5.0