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Author: Admin | 2025-04-28
[burst [timeout OR [no] crypto dynamic-map set tfc-packets [burst [timeout An administrator can enable dummy Traffic Flow Confidentiality (TFC) packets at random lengths and intervals on an IPsec security association. You must have an IKEv2 IPsec proposal set before enabling TFC. Note Enabling Traffic Flow Confidentiality packets prevents VPN idle timeout. The ACL assigned to a crypto map consists of all of the ACEs that have the same ACL name, as shown in the following command syntax: access-list access-list-name {deny | permit} ip source source-netmask destination destination-netmask You create an ACL when you create its first ACE. The following command syntax creates or adds to an ACL: access-list access-list-name {deny | permit} ip source source-netmask destination destination-netmask In the following example, the ASA applies the IPsec protections assigned to the crypto map to all traffic flowing from the 10.0.0.0 subnet to the 10.1.1.0 subnet: access-list 101 permit ip 10.0.0.0 255.255.255.0 10.1.1.0 255.255.255.0 The crypto map that matches the packet determines the security settings used in the SA negotiations. If the local ASA initiates the negotiation, it uses the policy specified in the static crypto map to create the offer to send to the specified peer. If the peer initiates the negotiation, the ASA attempts to match the policy to a static crypto map, and if that fails, then it attempts to match any dynamic crypto maps in the crypto map set, to decide whether to accept or reject the peer offer. For two peers to succeed in establishing an SA,
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