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New Member

Port open for pptp

Hi i'm using a cisco 857 router, my problem is when i connect to other network using windows pptp from our internal to outside i can't connect. It only reach up to verifying username and password then it will be cut off and it will give me error 619. A connection to the remote computer could not be established, so the port used for this connection was closed.

and 2nd problem is when i connect vpn from outside to our internal office. I can ping and remote everything but i can't access our wss site at my internet explorer that is using port 80.

Kindly check the attached config of my router

Thanks for your advise

Hall of Fame Super Silver

Re: Port open for pptp

Hello Marc,

see RFC2637

There are two parallel components of PPTP: 1) a Control Connection

between each PAC-PNS pair operating over TCP and 2) an IP tunnel

operating between the same PAC-PNS pair which is used to transport

GRE encapsulated PPP packets for user sessions between the pair.

Section 1.3

So both must be allowed to have a successful PPTP vpn.

GRE uses 47 GRE General Routing Encapsulation [Li]

You need to update the inspect rules accordingly.

Hope to help


New Member

Re: Port open for pptp

Hi Giuseppe thanks for the information. What command should i add and where should i put it?


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