PIX PPTP passthrough with pppoe changing ip-address? 1

[snobby]

I have a dsl-connection with only ONE internet-address and a private address range behind the firewall. The Internetaddress is changing every 24 hours (via pppoe). Normally i have a fli4l-Linux router running, no problems with this
I also habe no problem to use a pptp client on my network if I enable pptp passthrough at the linux router. I can reach my office VPN-Server without problems.

Now I got a brand new PIX firewall from cisco.
Everything is fine, but the pptp passthrough will not work. Since the technical environment is the same is can not be a principal problem, even if Cisco complains that pptp passthrough with only one official ip address is not possible.
It is solved under linux, so has anyone a solution under PIX?
Is there a date for version 6.3 of the pix?

Best regards,
Stefan

 

[themut]

PPTP through PAT does not work on the PIX. As you already know, Cisco says it will be on 6.3 it is supposed to be available 1 Q.