role of the crypto map sequence number

I'm setting up IPSEC in four sites in a manner completely mesh. The problem I have is one of the sites is our main hub and everything works on a class B network. Creating ACL to get from one place to another is relatively simple, but getting a site on the main hub is another story, because other sites are all the subnets in the class B address, I have to remove these subnets of a class B and at the same time to encrypt the rest of the class B address. Subnets of the smaller sites are for most of the 24 and 25. I was wondering if the sequence # in the card order crypto could play a role for me. If I set the priority on small sites and put the lower on the map pointing to the main pole encryption could I get away with something like this:

licence (local subnet) 0.0.0.255 x.x.x.x where x.x.x.x (category B) 0.0.255.255

Thanks in advance for taking the time.

Mario

Mario... that's exactly how it works for the two ISAKMP Crypto map policies and policy. It will look at the lowest number (like attentive) so if you do your remote sites all a higher priority (lower number), then you should be fine with respect to the central site.

Kind regards

Tags: Cisco Security

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