We have a Hub-and-Spoke scenario: PIX 515 at the central site and PIX 501 at the home offices. The PIX 501s are connected to a DSL modem. Therefore, their ip addresses are not predictable.
We like to use isakmp authentication with pre-shared keys. Do I have to use dynamic crypto maps at the central site, or is there any other solution. Maybe someone can post a working configuration or a link to the related cisco documentation?
Thanks in advance