PPTP client side ports to open

  • Thread starter Thread starter J.C.
  • Start date Start date
J

J.C.

Hello,

I'm triying to connect from a firewalled network to a VPN
via PPTP, what port do I need to open on client's side to
establish the VPN connection? The connection outside the
firewalled network works great.

Thanks,
J.C.
 
PPTP uses tcp port 1723 . You will probably find the connection fails if
the firewall does not allow IP protocol 47 (GRE) . The encrypted data goes
across inside a packet with a GRE header. No GRE, no VPN traffic!
 
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