> # Using IPsec

> To use the IPsec feature, follow these steps:

> 1. Obtain the ENTERPRISE_PKG license to enable IPsec for iSCSI and to enable IPsec for FCIP. See the Cisco MDS 9000 Family NX-OS Licensing Guide for more information.
> 2. Configure IKE as described in the "Configuring IPsec and IKE Manually" topic.

> Note The IPsec feature inserts new headers in existing packets (see the IP Services Configuration Guide, Cisco DCNM for SAN for more information).

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