1
vote
1answer
48 views

Is there a logical reason why Amazon EC2 won't allow me to specify a port when using GRE?

I want to set up PPTP in EC2 and am configuring a security group. I've already selected the "custom protocol" and am using protocol 47 / GRE. When I select this, the port section is read only. Is ...
0
votes
0answers
134 views

VPN pptp connection Unable to pass through linux iptables

I have set up a windows VPN server behind Linux - Ubuntu box that is working as firewall and proxy server. Now I want people from outside to be able to connect to the VPN server, but the connection is ...
1
vote
0answers
155 views

Vyatta Remote Access VPN firewall (PPTP)

I am using Vyatta Remote Access VPN (PPTP) and NAT for proxy. When pc-A and pc-B are connected to VPN, pc-A ipaddress is 192.168.10.10 and pc-B is 192.168.10.11. ...
1
vote
0answers
57 views

Tunnelling through a 3rd party firewall [closed]

I have a few IP cameras that will be behind a firewall I cannot modify (cannot open, or forward ports). They need to be reachable from my server sitting across the intertubes. Without having gone ...
3
votes
1answer
4k views

PPTP connection fails with errors 800/806

I've got a client (Server 2008 R2) that won't connect to our production environment PPTP VPN server (Server 2003, running RRAS). The server is behind a firewall that has TCP1723 open as well as GRE. ...
1
vote
0answers
322 views

What steps can I follow to diagnose why PPTP VPN (rasClient) has suddenly stopped connecting?

I use my a Windows Server 2008 R2 workstation as a VPN client to a Windows 2003 RRAS VPN host. It has worked flawlessly for many months. All of sudden, rasClient stops connecting and throws: Error ...
0
votes
1answer
121 views

Connection not being routed through VPN

Let's say I have a server at 12.34.56.78 that provides PPTP among other things. Right now I'm on a network that has most outbound ports blocked, and I'm using my VPN to break through the firewall. My ...
0
votes
3answers
1k views

Can't connect to PPTP server outside of network

I'm trying to configure my Cisco 881 running IOS 15 to allow pptp connections to servers outside of the network. I know the PPTP server is configured correctly, because a)it's a clients VPN, and b) ...