PIX, PPTP and Internet access for PPTP users...

Mar 16, 2005 2 Replies

Hello,



I have a PIX 525e that is my company's firewall and VPN (for remote site connectivity). Today, I configured it to do PPTP for some of our employees hoping to get away from the MS PPTP server. I noticed today while testing the configuration that I could not get to the Internet when using PPTP. Now, I know I can configure it to do "split tunneling" however, I do not wish to do split tunneling (long story, not my choice).



I read a post from some news group that the PIX will not allow you to route out the same interface the encrypted packet came in on. In other words the "outside" interface is the PPTP tunnel end point and I can not route (the client using PPTP) the packet out into the Internet (also the outside interface). I can only use it to connect to internal PCs.



Is this true? Is there any work around? If I used a router for PPTP could I get around this?



P.S. I know PPTP sucks (that also is not my choice)



Michael



It is true that "PIX will not allow you to route out the same interface the encrypted packet came in on". The only thing you can do is to let the VPN client to use Proxy server.

If I were to use a router would I have the same problem?

Michael

William L. Sun wrote:

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required