L2TP VPN - a user on one LAn can can only ping some users on the other LAN but not all users

i have working vpn whihc is stable but users on one Lan can only ping a few users on the other Lan. its an l2tp tunnel without ipsec enable

Hi,

Both LAN’s must have the correct routing tables to reach each other LAN, e.g. LAN 1 192.168.10.0/24 and LAN 2 192.168.20.0/24 ; from LAN 1 must have the correct routing to LAN 2, and vice versa, LAN 2 must have the correct routing from 192.168.20.0/24 to LAN 1 192.168.10.0/24

good day…