vpn l25p fails over remote but works in lan

  • Thread starter news.microsoft.com
  • Start date


I have set up rras and isa 2000 to accept vpn clients.

the server works fine over pptp but fails when i try to access l2tp.
i can connect from a workstation on the lan but from home it times out.

the certificate on the lan wkstn has server authentication & client
authentication but the external only has client authentication. i would have
thought that client authentication is all that would be necessary for a
client to connect to a server. i am sure the server cert must be ok as it
works on the lan.

all the required ports are opened on isa as i have run the vpn wizard.

any ideas?


Robert L [MS-MVP]

do you have a router/firewall? make sure the router/firewall doesn't block
the ports.

For more and other information, go to http://www.ChicagoTech.net

Don't send e-mail or reply to me except you need consulting services.
Posting on MS newsgroup will benefit all readers and you may get more help.

Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
Networking Solutions, http://www.chicagotech.net/networksolutions.htm
VPN Solutions, http://www.chicagotech.net/vpnsolutions.htm
VPN Process and Error Analysis, http://www.chicagotech.net/VPN process.htm
VPN Troubleshooting, http://www.chicagotech.net/vpn.htm
This posting is provided "AS IS" with no warranties.


the only firewall is the isa server that the rras is on.
the necessary ports are open.

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question