Solved

L2TP Server on Mac Server Not Working - Ports Not Open

Posted on 2013-01-07
9
988 Views
Last Modified: 2013-04-15
Hi. We have a client with a MAC server running an L2Tp VPN. Since an OS update it's now not accepting VPN connections. The VPN server is running and the port forwarding is setup correctly, however if I run a port scan from outside it's telling me that port 1701 is not accessible. When i try to connect on VPN it says connection refused. I ran a port scan internally on the Mac Server through network utilities and it doesn't show port 1701 as being open.

How can i troubleshoot this further and / or open port 1701 to allow L2TP traffic again?

Thanks
Jim
0
Comment
Question by:James Parsons
  • 5
  • 3
9 Comments
 
LVL 4

Expert Comment

by:vidovic
ID: 38754332
You need to open UDP ports 500, 1701 and 4500 for L2TP
You need to open TCP ports 1723 for PPTT
All these ports need to be opened on your router/firewall and forwarded to the server's IP address.
0
 

Author Comment

by:James Parsons
ID: 38755118
Yes. Those have already been done. All required ports are open and forwarded.
0
 
LVL 4

Expert Comment

by:vidovic
ID: 38757185
Are your Service ACLs set up for this user?? Does he/she have access to this service?
0
 

Author Comment

by:James Parsons
ID: 38757221
I believe so. It was working fine until an Apple OS update. Now it just says that the server isn't responding when they try to connect. I can see from the Utilities screen that the ports for L2TP are not open.
0
Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

 
LVL 4

Expert Comment

by:vidovic
ID: 38757229
Did you try connecting as an Admin user or another user just to check Authorization?
0
 

Author Comment

by:James Parsons
ID: 38757283
Yes. And when I do a port scan externally it shows the port as not being opened. I also tried connecting across the LAN rather than using the external IP to rule out port forwarding - same result. I'm convinced it's a port issue - just not sure where to look or fix it.
0
 
LVL 19

Expert Comment

by:Kash
ID: 38800715
what about a PPTP connection. Does that work ?

Does your router support VPN. Have you tried router to do the VPN to see if it works on that ?

What version of OS X Server are you running ?

What kind of router is it ?
0
 

Accepted Solution

by:
James Parsons earned 0 total points
ID: 38954415
We had to setup a PPTP connection and that seemed to work ok.
0
 

Author Closing Comment

by:James Parsons
ID: 39079788
None of the suggestions worked so we setup a PPTP connection as we had no choice and needed to get it working somehow.
0

Featured Post

Free camera licenses with purchase of My Cloud NAS

Milestone Arcus software is compatible with thousands of industry-leading cameras for added flexibility. Upon installation on your My Cloud NAS, you will receive two (2) camera licenses already enabled in the software. And for a limited time, get additional camera licenses FREE.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
How to Create Bootable Mac OS X USB Drive 8 103
Data recovery for MAC 4 43
Mini Mac disk problem 7 28
Downgrading from Python 3.4.5 to 3.4.3 5 20
Information security is a multi-billion dollar industry. Just as lucrative is the black market industry which trades stolen identities, credit card numbers and software exploits all over the world. Nothing is hack-proof. The best one can do is make …
iCloud Drive was introduced after iOS 8 was launched last year. This drive is Apple’s online storage device that lets users sync their files and access them from all their Apple devices.   There is a lot of data that is not automatically backed up…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now