> Crypto Map IKEv2-IPv6 Configuration Mode Commands
> The Crypto Map IKEv2-IPv6 Configuration Mode is used to configure an IKEv2 IPsec policy for secure X3 interface tunneling between a P-GW and a lawful intercept server.
> Important: The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).
> authentication
> Configures the subscriber authentication method used for the P-GW lawful intercept service.
> Product
> P-GW
> Privilege
> Administrator
> Syntax
> authentication pre-shared-key { encrypted key value | key value }
> pre-shared-key { encrypted key value | key value }
> Specifies that a pre-shared key is to be used for authenticating a subscriber in the PDIF service.
> encrypted key value: Specifies that the pre-shared key used for authentication is encrypted. value must be between 1 and 255 alpha and/or numeric characters.
> key value: Specifies that the pre-shared key used for authentication is clear text. value must be between 1 and 255 alpha and/or numeric characters.
> Usage
> Use this command to specify the type of authentication performed for subscribers attempting to access the P-GW service using this crypto map.
> Example
> The following command sets the authentication method to an open key value of 6d7970617373776f7264:
> authentication pre-shared-key key 6d7970617373776f7264
> control-dont-fragment
> Controls the don’t fragment (DF) bit in the outer IP header of the IPsec tunnel data packet.
> Product
> P-GW
> Privilege
> Administrator
> Syntax
> control-dont-fragment { clear-bit | copy-bit | set-bit }
> { clear-bit | copy-bit | set-bit }
> clear-bit: Clears the DF bit from the outer IP header (sets it to 0).
> copy-bit: Copies the DF bit from the inner IP header to the outer IP header. This is the default action.
> set-bit: Sets the DF bit in the outer IP header (sets it to 1).
> Usage
> A packet is encapsulated in IPsec headers at both ends. The new packet can copy the DF bit from the original unencapsulated packet into the outer IP header, or it can set the DF bit if there is not one in the original packet. It can also clear a DF bit that it does not need.
> Example
> The following command sets the DF bit in the outer IP header:
> control-dont-fragment set-bit
> end
> Exits the current mode and returns to the Exec Mode.
> Product
> All
> Privilege
> Administrator
> Syntax
> end
> Usage
> Change the mode back to the Exec Mode.
> exit
> Returns the user to the previous mode.
> Product
> All
> Privilege
> Administrator
> Syntax
> exit
> Usage
> Returns to the previous mode.
> ikev2-ikesa
> Configures parameters for the IKEv2 IKE Security Associations within this crypto template.
> Product
> P-GW
> Privilege
> Administrator
> Syntax
> ikev2-ikesa { max-retransmissions number | rekey | setup-timer sec }
> default ikev2-ikesa { max-retransmissions | rekey | setup-timer }
> no ikev2-ikesa rekey
> default
> Restores the selected keyword to its default value.
> no ikev2-ikesa
> Disables a previously enabled parameter.
> max-retransmissions number
> Default: 5
> Specifies the maximum number of retransmissions of an IKEv2 IKE exchange request if a response has not been received. number must be an integer from 1 to 8.
> rekey
> Specifies if IKESA rekeying should occur before the configured lifetime expires (at approximately 90% of the lifetime interval). Default is not to re-key.
> setup-timer sec
> Default: 60
> Specifies the number of seconds before a IKEv2 IKE Security Association, that is not fully established, is terminated. sec must be an integer from 1 to 3600.
> Usage
> Use this command to configure parameters for the IKEv2 IKE Security Associations within this crypto template.
> Example
> The following command configures the maximum number of IKEv2 IKESA request retransmissions to 7:
> ikev2-ikesa max-retransmissions 7
> match
> Matches or associates the crypto map to an access control list (ACL) configured in the same context.
> Product
> P-GW
> Privilege
> Administrator
> Syntax
> match address acl_name [ priority ]
> no match address
> no
> Removes a previously matched ACL.
> acl_name
> The name of the ACL that the crypto map is to be matched with.
> acl_name can be from 1 to 79 alpha and/or numeric characters and is case sensitive.
> priority
> Default: 0
> Specifies the preference of the ACL. The ACL preference is factored when a single packet matches the criteria of more than one ACL.
> The preference can be configured to any integer value from 0 to 4294967295. “0” is the highest priority.
> Important: The priorities are only compared for ACLs matched to other crypto maps or to policy ACLs (those applied to the entire context).
> Usage
> ACLs matched to crypto maps are referred to as crypto ACLs. Crypto ACLs define the criteria that must be met in order for a subscriber data packet to routed over an IPSec tunnel.
> Prior to routing, the system examines the properties of each subscriber data packet. If the packet properties match the criteria specified in the crypto ACL, the system will initiate the IPSec policy dictated by the crypto map.
> Example
> The following command sets the crypto map ACL to the ACL named acl-list1 and sets the crypto maps priority to the highest level.
> match address acl-list1 0
> payload
> Creates a new, or specifies an existing, crypto template payload and enters the Crypto Template Payload Configuration Mode.
> Product
> P-GW
> Privilege
> Administrator
> Syntax
> payload name match ipv6
> no payload name
> name
> Specifies the name of a new or existing crypto template payload. name must be from 1 to 127 alpha and/or numeric characters.
> match ipv6
> Filters IPSec IPv6 Child Security Association creation requests for subscriber calls using this payload. Further filtering can be performed by applying the following:
> Usage
> Use this command to create a new or enter an existing crypto template payload. The payload mechanism is a means of associating parameters for the Security Association (SA) being negotiated.
> Two payloads are required: one each for MIP and IKEv2. The first payload is used for establishing the initial Child SA Tunnel Inner Address (TIA) which will be torn down. The second payload is used for establishing the remaining Child SAs. Note that if there is no second payload defined with home-address as the ip-address-allocation then no MIP call can be established, just a Simple IP call.
> Currently, the only available match is for ChildSA, although other matches are planned for future releases.
> Entering this command results in the following prompt:
> [ctxt_name]hostname(cfg-crypto-<name>-ikev2-tunnel-payload)#
> Crypto Template IKEv2-IPv6 Payload Configuration Mode commands are defined in the Crypto Template IKEv2-IPv6 Payload Configuration Mode Commands chapter.
> Example
> The following command configures a crypto template payload called payload5 and enters the Crypto Template IKEv2-IPv6 Payload Configuration Mode:
> payload payload5 match ipv6
> peer
> Configures the IP address of a peer IPsec server.
> Product
> P-GW
> Privilege
> Administrator
> Syntax
> peer ip_address
> no peer
> no
> Removes the configured peer server IP address.
> ip_address
> Specifies the IP address of a peer IPsec server. ip_address must be specified in IPv4 dotted decimal notation or IPv6 colon separated notation.
> Usage
> Use this command to specify a peer IPsec peer server. The IPsec peer server can also be the Lawful Intercept server.
> Example
> The following command configures the system to recognize an IPsec peer server with an IPv6 address of fe80::200:f8ff:fe21:67cf:
> peer fe80::200:f8ff:fe21:67cf

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