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I have configured on my Ubuntu a VPN server using PPTPD. I can connect to it from outside of my LAN, I can use it's internet connection. But I cannot see my LAN clients (because the VPN and the LAN are on different networks).

This is my configuration: - PPTP VPN: 10.99.99.0/24, localip: 10.99.99.99 - LAN: 192.168.1.0/24

Is it possible somehow to create a bridge between my LAN and the PPTP VPN? So that I can access the clients from the LAN also. If so, how can I do that? As I understood the PPTP VPN must be configured on a different network than the LAN.

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    PPTP is insecure. You should not use it. – Mircea Vutcovici Nov 7 '16 at 2:54
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It is possible to configure PPTP VPN to use same subnet the LAN uses. I used it with such configuration. Or, you can add firewall rules to allow traffic between the two different subnets like following:

Src=192.168.4.0/24, Dst=192.168.1.0/24 srcport=ANY, dstport=ANY ALLOW
Src=192.168.1.0/24, Dst=192.168.4.0/24 srcport=ANY, dstport=ANY ALLOW

By the way, beware that PPTP is compromised protocol; consider PPTP as unencrypted protocol.

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