IOS pptp pass

[boymarty24]

Hi teks!

I have a little problem. I have some people behind a Cisco ISR 871 who wants to connect to a ms pptp server
behind another firewall. The clients connect fine but when they try to access rdp it starts to load but stuck after one second or so.
I can ping the terminalserver but not access it via RDP. I have checked cisco´s techsites but there is nothing there that i havent done.

IPsec clients like cisco and checkpoint work fine.

//marty

 

[davidarndt]

Is port 3389 open? That's the default RDP port. Can use other ports with a registry hack on the server end.

 

[boymarty24]

Do i really need to open port 3389? Shouldnt all traffic be routed via the pptp tunnel? I have permit IP any any on the inside interface. I can browse the the remote servers thru explorer.exe. The issue is with RDP.

 

[ADB100]

If the application begins to start but hangs it sounds like it might be an MTU issue. Windows 2000 and upwards uses a fixed MTU of 1400 so it should be OK as long as there are no links in the path where the MTU is less than 1420-odd. Are you blocking ICMP on the 871? It might be worth debugging the 871 when a client attemps to connect.

Some info here:

http://support.microsoft.com/?kbid=826159

http://www.dslreports.com/faq/4613

HTH

Andy

 

[boymarty24]

I have been testing with different mtu´s but not getting it to work. But with your links it might be better. I will get back to you

 

[boymarty24]

This was related to my other post. The router ios was crap and after updating ít works