Hi. We have a remote site that connects to the internet via a Cisco 1801 Integrated Services router plugged into an ISDN line. Ths line only has dynamically assigned public IPs and I'm wondering if it's possible to create a site VPN back to our head office Pix 515 without a static IP at the remote site. Any pointers would be greatly appreciated.
I should also point out that this site already connects to head office via an ADSL line connected to the 801 with a static IP which is working fine. The ISDN is for backup.
Edit - i forgot to point out. Because you use 0.0.0.0 as the remote IP address to allow dynamic connections that means any remote device could try and setup a tunnel with your pix. Obviously the device won't be able to without the key but it becomes evern more important to use a secure key.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...