i had a cisco 2600 running 12.2(5d) version, the IOS file support just IP,
now i want to built a vpn between two routers (2620).
so i take a 12.0(5) XK1 that support IPSec and 3DES.
i instal this new IOS file in my routeur,using COPY tftp flash.....
i didn't configure the IPSec for the moment,
the probleme is:
i can't have a connection for my remote sites by using an ISDN
any idea???