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Author: Admin | 2025-04-28
(such as mobile users) and routers that obtain dynamically assigned IP addresses. Tip Use care when using the any keyword in permit entries in dynamic crypto maps. If the traffic covered by such a permit entry could include multicast or broadcast traffic, insert deny entries for the appropriate address range into the ACL. Remember to insert deny entries for network and subnet broadcast traffic, and for any other traffic that IPsec should not protect. Dynamic crypto maps work only to negotiate SAs with remote peers that initiate the connection. The ASA cannot use dynamic crypto maps to initiate connections to a remote peer. With a dynamic crypto map, if outbound traffic matches a permit entry in an ACL and the corresponding SA does not yet exist, the ASA drops the traffic. A crypto map set may include a dynamic crypto map. Dynamic crypto map sets should be the lowest priority crypto maps in the crypto map set (that is, they should have the highest sequence numbers) so that the ASA evaluates other crypto maps first. It examines the dynamic crypto map set only when the other (static) map entries do not match. Similar to static crypto map sets, a dynamic crypto map set consists of all of the dynamic crypto maps with the same dynamic-map-name. The dynamic-seq-num differentiates the dynamic crypto maps in a set. If you configure a dynamic crypto map, insert a permit ACL to identify the data flow of the IPsec peer for the crypto ACL. Otherwise
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