The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘PPTP’ Category

Reminder to self: when your PPTP server is behind a NAT, forward both GRE protocol and TCP port 1723

Posted by jpluimers on 2017/06/06

The WAN sides of my Mikrotik CCR1009 are partly behind Fritz!Box routers that do NAT and contain a truckload of port-forwards.

A while ago, I wanted the CCR1009 to do PPTP as Fritz!Box 7360 and 7490: static routes over VPN don’t work (so I could only VPN to the WAN side of the CCR1009). However, it would not pass through the Fritz!Box from the outside.

It appears you need to forward both:

Maybe one day I will ditch the Fritz!Box 7490 and directly hookup the Mikrotik to the NTU: xs4all ftth en Mikrotik router – Google Groups.

But preferably I should follow Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)

–jeroen

via: VPNs einrichten mit PPTP – administrator.de: Achtung mit PPTP VPN Servern hinter NAT Firewalls !

Forward both PPTP TCP port 1723 and the GRE protocol

Forward both PPTP TCP port 1723 and the GRE protocol

Posted in Fritz!, Fritz!Box, Fritz!WLAN, Internet, IPSec, MikroTik, Network-and-equipment, Power User, PPTP, routers, VPN | Leave a Comment »

Some links for MikroTik tips and scripts

Posted by jpluimers on 2017/04/25

MikroTik has great hardware, but getting things to work can be a bit ehm intimidating.

So here are some links that were useful getting my CCR1009 and CRS226 configurations to do what I wanted.

Read the rest of this entry »

Posted in DNS, Hardware, Internet, IPSec, MikroTik, Network-and-equipment, OpenVPN, Power User, PPTP, routers, VPN, WinBox | Leave a Comment »

Windows PPTP – How to Create a VPN Server on Your Windows Computer Without Installing Any Software

Posted by jpluimers on 2016/07/18

Windows has the built-in ability to function as VPN server, although this option is hidden. This trick works on both Windows 7 and Windows 8. The server uses the point-to-point tunneling protocol (PPTP.)

Source: How to Create a VPN Server on Your Windows Computer Without Installing Any Software

One day this might come in handy though I need to investigate a bit more on PPTP security issues first: might need to go for L2TP/IPsec instead.

Later: indeed, I should follow Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)

–jeroen

Posted in IPSec, Network-and-equipment, Power User, PPTP, VPN, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1 | 1 Comment »

Setting up a PPTP connection on Mac OS X Lion

Posted by jpluimers on 2013/07/05

Easy, but worth viewing the screenshots: IPredator – Setting up a PPTP connection on Mac OS X Lion.

Although: I should follow Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)

–jeroen

Posted in Apple, IPSec, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, Network-and-equipment, OS X 10.8 Mountain Lion, Power User, PPTP, VPN | Leave a Comment »

Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)

Posted by jpluimers on 2013/06/24

A while ago, I had to connect to secure data over PPTP.

It reminded me of  this post from about a year ago: via Divide and Conquer: Cracking MS-CHAPv2 with a 100% success rate (now archived at the wayback machine).

Their main point:

MS-CHAPv2 can be cracked within less than a day (and that time will only get less).

Their short conclusion “basically PPTP is dead, and IPSEC-PSK is worse” leads to the recommendation:

This leaves either an OpenVPN configuration, or IPSEC in certificate rather than PSK mode.

Longer quote: Read the rest of this entry »

Posted in IPSec, Network-and-equipment, Power User, PPTP, Security, VPN | 3 Comments »