Routing problem with VPN

pierreP Posts: 1
edited April 2021 in Security

I have a Zyxel USG 100, and I am tring to setup a VPN.

My local network is : Gateway NETWORKA There is another network with Gateway NETWORKB I can access to both without problems on this network my ip is : Gateway

My remote network is gateway NETWORKC

There is a l2tpVPN/IPSEC to access to it and it's working fine ( VPN :

After the connection I got the ip : Gateway : I can access to everything on the remote (NETWORC), to my local NETWORK ( NETWORKA) but I lost access to NETWORKB.

NETWORKC  FW-------------------------FW------NETWORKA


Any idea where is the problem and how can i fix it ?

Thanks a lot

All Replies

  • Zyxel_Emily
    Zyxel_Emily Posts: 1,296  Zyxel Employee
    First Anniversary 10 Comments Friend Collector First Answer

    Is site to site VPN configured between two USG100?
    Where is L2TP VPN client located? Which USG100 does this L2TP VPN client connect?

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