7 more replies! Halt further evaluation of the packet against the remaining ACEs in the crypto map set, and evaluate the packet security settings against those in the IKEv1 transform sets or IKEv2 proposals assigned to the crypto map. If this is the first IKEv2 VPN being setup, it will be necessary to bind the When IKE negotiations begin, the peer that initiates the negotiation sends all of its policies to the remote peer, and the remote peer tries to find a match. Assign a unique priority to each policy that you create. To match users to tunnel groups based on these fields of the certificate, you must first create rules that define a matching criteria, and then associate each rule with the desired tunnel group. These negotiations involve two phases: first, to establish the tunnel (the IKE SA) and second, to govern traffic within the tunnel (the IPsec SA). To set the terms of the ISAKMP negotiations, you create an IKE policy, which includes the following: The authentication type required of the IKEv1 peer, either RSA signature using certificates or preshared key (PSK). The ASA uses the 1024-bit Diffie-Hellman prime modulus group in the new SA. Use the show conf command to ensure that every crypto map is complete. Lets start with the IKEv2 policy: If you like to keep on reading, Become a Member Now! there are a number of settings listed by priority number. IKEv2 remote access connections support the pull-down group selection configured in the webvpn-attributes of the tunnel-group and webvpn configuration mode for certificate-group-map, and so on. The ASA uses the ISAKMP and IPsec tunneling standards to build and manage tunnels. Create more than one crypto map for a particular interface on the ASA if any of the following conditions exist: For example, create a crypto map and assign an ACL to identify traffic between two subnets and assign one IKEv1 transform set or IKEv2 proposal. When you click manage you should be also able to click on and add the ikev1 policy that you need. Displays the entire crypto configuration, including IPsec, crypto maps, dynamic crypto maps, and ISAKMP. At that point the ASA goes on to the next peer. Table 64-3 explains the special meanings of permit and deny ACEs in ACLs applied to crypto maps. Heres the topology: Above we have a small network with 4 devices. Of course, legacy IKEv1 is still supported and is widely used in almost all VPN configurations up to now. This feature is disabled by default. Specifies the Secure Hash Algorithm SHA 2 with the 256-bit digest. It uses the new value in the negotiation of subsequently established SAs. Find answers to your questions by entering keywords or phrases in the Search bar above. Specifies the SA lifetime. Keep all other Phase 1 settings as the default values. The first two items (strictcrlpolicy and uniqueids) are uncommented by default and we dont have to worry about these. NTP Certificate authentication requires that the clocks on all devices used must be synchronized to a common source. The selection can Specifies the symmetric encryption algorithm that protects data transmitted between two IPsec peers. Figure 64-1 shows an example LAN-to-LAN network of ASAs. Configuration First we will configure the IKEv2 policy which is similar to phase 1 of IKEv1. SA lifetime timer (86400 sec) startedIKEv2-PROTO-4: (20060): Session with IKE ID PAIR (100.x.x.x, 50.x.x.x) is UPIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_REGISTER_SESSIONIKEv2-PLAT-4: (20060): connection auth hdl set to 170IKEv2-PLAT-4: (20060): AAA conn attribute retrieval successfully queued for register session request.IKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_NO_EVENTIKEv2-PLAT-4: (20060): idle timeout set to: 30IKEv2-PLAT-4: (20060): session timeout set to: 0IKEv2-PLAT-4: (20060): group policy set to GroupPolicy_L2L_IKEv2IKEv2-PLAT-4: (20060): class attr setIKEv2-PLAT-4: (20060): tunnel protocol set to: 0x40IKEv2-PLAT-4: (20060): IPv4 filter ID not configured for connectionIKEv2-PLAT-4: (20060): group lock set to: noneIKEv2-PLAT-4: (20060): IPv6 filter ID not configured for connectionIKEv2-PLAT-4: (20060): connection attributes set valid to TRUEIKEv2-PLAT-4: (20060): Successfully retrieved conn attrsIKEv2-PLAT-4: (20060): Session registration after conn attr retrieval PASSED, No errorIKEv2-PLAT-4: (20060): connection auth hdl set to -1IKEv2-PROTO-4: (20060): Initializing DPD, configured for 10 secondsIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_RECD_REGISTER_SESSION_RESPIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_GEN_LOAD_IPSECIKEv2-PROTO-4: (20060): Load IPSEC key materialIKEv2-PLAT-4: (20060): Base MTU get: 0IKEv2-PLAT-4: (20060): Queued Outbound PFKEY MSGIKEv2-PLAT-4: (20060): Base MTU get: 0IKEv2-PLAT-4: (20060): Queued Inbound PFKEY MSGIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_NO_EVENTIPSEC: New embryonic SA created @ 0x000000ffc3ceefb0,SCB : 0xAAFFE320,Direction : outboundSPI : 0xC2F6AE76Session ID : 0x04A7D000VPIF num : 0x000A0003Tunnel type: l2lProtocol : espLifetime : 240 secondsSA handle : 0xD9B2533BRule Lookup for local 10.149.112.128 to remote 10.60.190.0Crypto map: peer 100.x.x.x doesn't match map entryCrypto map: peer 100.x.x.x doesn't match map entryCrypto map OUTSIDE_map seq 3: no proposalsCrypto map: peer 100.x.x.x doesn't match map entryCrypto map OUTSIDE_map seq 5: no proposalsCrypto map OUTSIDE_map seq 6: no proposalsCrypto map: peer 100.x.x.x doesn't match map entryCrypto map OUTSIDE_map seq 8: no proposalsCrypto map OUTSIDE_map seq 9: no proposalsCrypto map OUTSIDE_map seq 10: no proposalsCrypto map OUTSIDE_map seq 11: no proposalsCrypto map: peer 100.x.x.x doesn't match map entryPROXY MATCH on crypto map OUTSIDE_map seq 13IPSEC DEBUG: Using NP outbound permit rule for SPI 0xC2F6AE76IPSEC: Completed host OBSA update, SPI 0xC2F6AE76IPSEC: Creating outbound VPN context, SPI 0xC2F6AE76Flags: 0x00000005SA : 0x000000ffc3ceefb0SPI : 0xC2F6AE76MTU : 1500 bytesVCID : 0x0000000APeer : 0x00000000SCB : 0x1E13ABCBChannel: 0x0000005557a3bb80IPSEC: Completed outbound VPN context, SPI 0xC2F6AE76VPN handle: 0x000000002a66dc4cIPSEC: New outbound encrypt rule, SPI 0xC2F6AE76Src addr: 10.149.112.128Src mask: 255.255.255.192Dst addr: 10.60.190.0Dst mask: 255.255.255.0Src portsUpper: 0Lower: 0Op : ignoreDst portsUpper: 0Lower: 0Op : ignoreProtocol: 0Use protocol: falseSPI: 0x00000000Use SPI: falseIPSEC: Completed outbound encrypt rule, SPI 0xC2F6AE76Rule ID: 0x000000ffaaff85b0IPSEC: New outbound permit rule, SPI 0xC2F6AE76Src addr: 50.x.x.xSrc mask: 255.255.255.255Dst addr: 100.x.x.xDst mask: 255.255.255.255Src portsUpper: 0Lower: 0Op : ignoreDst portsUpper: 0Lower: 0Op : ignoreProtocol: 50Use protocol: trueSPI: 0xC2F6AE76Use SPI: trueIPSEC: Completed outbound permit rule, SPI 0xC2F6AE76Rule ID: 0x000000ffc2b6ac80IPSEC: New embryonic SA created @ 0x000000ffe3ef4d90,SCB : 0xE13FB850,Direction : inboundSPI : 0xACD0E053Session ID : 0x04A7D000VPIF num : 0x000A0003Tunnel type: l2lProtocol : espLifetime : 240 secondsSA handle : 0x0B1AD905Rule Lookup for local 10.149.112.128 to remote 10.60.190.0Crypto map: peer 100.x.x.x doesn't match map entryCrypto map: peer 100.x.x.x doesn't match map entryCrypto map OUTSIDE_map seq 3: no proposalsCrypto map: peer 100.x.x.x doesn't match map entryCrypto map OUTSIDE_map seq 5: no proposalsCrypto map OUTSIDE_map seq 6: no proposalsCrypto map: peer 100.x.x.x doesn't match map entryCrypto map OUTSIDE_map seq 8: no proposalsCrypto map OUTSIDE_map seq 9: no proposalsCrypto map OUTSIDE_map seq 10: no proposalsCrypto map OUTSIDE_map seq 11: no proposalsCrypto map: peer 100.x.x.x doesn't match map entryPROXY MATCH on crypto map OUTSIDE_map seq 13IPSEC DEBUG: Using NP inbound permit rule for SPI 0xACD0E053IPSEC: Completed host IBSA update, SPI 0xACD0E053IPSEC: Creating inbound VPN context, SPI 0xACD0E053Flags: 0x00000006SA : 0x000000ffe3ef4d90SPI : 0xACD0E053MTU : 0 bytesVCID : 0x0000000APeer : 0x2A66DC4CSCB : 0x7A34DDFDChannel: 0x0000005557a3bb80IPSEC: Completed inbound VPN context, SPI 0xACD0E053VPN handle: 0x000000002a66fb8cIPSEC: Updating outbound VPN context 0x2A66DC4C, SPI 0xC2F6AE76Flags: 0x00000005SA : 0x000000ffc3ceefb0SPI : 0xC2F6AE76MTU : 1500 bytesVCID : 0x0000000APeer : 0x2A66FB8CSCB : 0x1E13ABCBChannel: 0x0000005557a3bb80IPSEC: Completed outbound VPN context, SPI 0xC2F6AE76VPN handle: 0x000000002a66dc4cIPSEC: Completed outbound inner rule, SPI 0xC2F6AE76Rule ID: 0x000000ffaaff85b0IPSEC: Completed outbound outer SPD rule, SPI 0xC2F6AE76Rule ID: 0x000000ffc2b6ac80IPSEC: New inbound tunnel flow rule, SPI 0xACD0E053Src addr: 10.60.190.0Src mask: 255.255.255.0Dst addr: 10.149.112.128Dst mask: 255.255.255.192Src portsUpper: 0Lower: 0Op : ignoreDst portsUpper: 0Lower: 0Op : ignoreProtocol: 0Use protocol: falseSPI: 0x00000000Use SPI: falseIPSEC: Completed inbound tunnel flow rule, SPI 0xACD0E053Rule ID: 0x000000ffab00ea30IPSEC: New inbound decrypt rule, SPI 0xACD0E053Src addr: 100.x.x.xSrc mask: 255.255.255.255Dst addr: 50.x.x.xDst mask: 255.255.255.255Src portsUpper: 0Lower: 0Op : ignoreDst portsUpper: 0Lower: 0Op : ignoreProtocol: 50Use protocol: trueSPI: 0xACD0E053Use SPI: trueIPSEC: Completed inbound decrypt rule, SPI 0xACD0E053Rule ID: 0x000000ffa92d0c60IPSEC: New inbound permit rule, SPI 0xACD0E053Src addr: 100.x.x.xSrc mask: 255.255.255.255Dst addr: 50.x.x.xDst mask: 255.255.255.255Src portsUpper: 0Lower: 0Op : ignoreDst portsUpper: 0Lower: 0Op : ignoreProtocol: 50Use protocol: trueSPI: 0xACD0E053Use SPI: trueIPSEC: Completed inbound permit rule, SPI 0xACD0E053Rule ID: 0x000000ffc2f6eee0IKEv2-PLAT-4: (20060): PSH added CTM sa hdl 186308869IKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_OK_RECD_LOAD_IPSECIKEv2-PROTO-7: (20060): Action: Action_NullIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_START_ACCTIKEv2-PROTO-4: (20060): SA FO event generated - successIKEv2-PROTO-4: (20060): DPD timer started for 10 secsIKEv2-PROTO-7: (20060): Accounting not requiredIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_PARENT_NEG_COMPLETEIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_PKI_SESH_CLOSEIKEv2-PROTO-7: (20060): Closing the PKI sessionIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_CHECK_DUPEIKEv2-PROTO-4: (20060): Checking for duplicate IKEv2 SAIKEv2-PROTO-4: (20060): No duplicate IKEv2 SA foundIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_CHK4_ROLEIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: READY Event: EV_CHK_IKE_ONLYIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000001 CurState: READY Event: EV_I_OKIKEv2-PROTO-7: (20060): Deleting negotiation context for my message ID: 0x1, (20060):IKEv2-PROTO-4: (20060): Received Packet [From 100.x.x.x:500/To 50.x.x.x:500/VRF i0:f0](20060): Initiator SPI : 86CD26F832273889 - Responder SPI : D92B13B3765EEB57 Message id: 0(20060): IKEv2 INFORMATIONAL Exchange REQUESTIKEv2-PROTO-5: (20060): Next payload: ENCR, version: 2.0 (20060): Exchange type: INFORMATIONAL, flags: RESPONDER (20060): Message id: 0, length: 76(20060):Payload contents:IKEv2-PLAT-4: (20060): Decrypt success status returned via ipc 1(20060):(20060): Decrypted packet:(20060): Data: 76 bytes(20060): REAL Decrypted packet:(20060): Data: 12 bytesIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (R) MsgID = 00000000 CurState: READY Event: EV_RECV_INFO_REQIKEv2-PROTO-7: (20060): Action: Action_NullIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (R) MsgID = 00000000 CurState: INFO_R Event: EV_RECV_INFO_REQIKEv2-PROTO-4: (20060): Building packet for encryption. The crypto maps should also support common transforms and refer to the other system as a peer. Figure 64-2 shows the cascading ACLs created from the conceptual ACEs above. This examples sets a lifetime of 4 hours (14400 seconds). IKEv1 and IKEv2 each support a maximum of 20 IKE policies, each with a different set of values. Specify multiple peers by repeating this command. The goal is to configure IKEv2 IPSEC site-to-site VPN between ASA1 and ASA2 so that R1 and R2 are able to reach each other. In ASDM the selection of which protocol is enabled per-interface, can be seen This requirement includes the Nokia Security Services Manager (NSSM) and Nokia databases as shown in Figure 64-5. I use a HP proliant DL360 G7 with a quad NIC running VMware ESXi. An example with real IP addresses follows the explanation. When a crypto map does not have configured lifetime values and the ASA requests a new SA, it inserts the global lifetime values used in the existing SA into the request sent to the peer. Figure 64-1 Effect of Permit and Deny ACEs on Traffic (Conceptual Addresses). Im using two routers called R1 and R2 as hosts so we have something to test the VPN. To create a basic IPsec configuration using a static crypto map, perform the following steps: Step 1 To create an access list to define the traffic to protect, enter the following command: In this example, the permit keyword causes all traffic that matches the specified conditions to be protected by crypto. How can i overcome this? Therefore, insert initial deny statements to filter outbound traffic that should not be evaluated against permit statements in a crypto access list. CRACK is ideal for mobile IPsec-enabled clients that use legacy authentication techniques instead of digital certificates. Removes an entire crypto configuration, including IPsec, crypto maps, dynamic crypto maps, and ISAKMP. However, because traffic from Host A.3 contains sensitive data from the Human Resources department, it requires strong encryption and more frequent rekeying than the other traffic. Specifies the Secure Hash Algorithm SHA 2 with the 384-bit digest. It is shared by all IPsec connection profiles). Otherwise this will This feature is disabled by default. Assigning the crypto map set to an interface instructs the ASA to evaluate all the traffic against the crypto map set and to use the specified policy during connection or SA negotiation. It sends data to the peer that it has successfully negotiated with, and that peer becomes the active peer. Table 64-4 shows the ACLs assigned to the crypto maps configured for all three ASAs in Figure 64-1. Each virtual NIC in your virtual machine can then use a different VLAN. IKE creates the cryptographic keys used to authenticate peers. NAT-T auto-detects any NAT devices and only encapsulates IPsec traffic when necessary. To configure Security Appliance A for outbound traffic, you create two crypto maps, one for traffic from Host A.3 and the other for traffic from the other hosts in Network A, as shown in the following example: After creating the ACLs, you assign a transform set to each crypto map to apply the required IPsec to each matching packet. Table 64-6 lists commands that you can enter to view information about your IPsec configuration. Reason: 4IKEv2-PLAT-4: (20060): session manager killed ikev2 tunnel. Step 2 Select the before-encryption option for the IPsec fragmentation policy by entering this command: This option lets traffic travel across NAT devices that do not support IP fragmentation. You can also use a single physical connection from your VMware server to your switch and then configure it as a trunk. Note A dynamic crypto map requires only the transform-set parameter. For IKEv2, you can configure multiple encryption and authentication types, and multiple integrity algorithms for a single policy. I have been attemping an L2L vpn setup using the ASDM wizard. Created using, Grumpy Networkers Journal 0.0.7 documentation, Cisco ASA IKEv2 VPN Configuration with Assymetric Pre-Shared Keys Example, Bind the Crypto Map to the appropriate interface. Traffic to hosts on the inside network are blocked correctly by the ACL, but cannot block decrypted through traffic to the inside interface.The ssh and http commands are of a higher priority than the ACLs. Indicates that the certificate-based ISAKMP sessions are mapped to a tunnel group based on the certificate map associations configured by this command. Specifies the pseudo random function (PRF)the algorithm used to generate keying material. The ASA uses this address only to initiate the tunnel. For IKEv2 proposals, you can configure multiple encryption and authentication types and multiple integrity algorithms for a single proposal. The simple address notation shown in this figure and used in the following explanation is an abstraction. Figure 64-3 Effect of Permit and Deny ACEs on Traffic (Real Addresses). (If you configure DH Group 1, the Cisco VPN Client cannot connect.). You must also configure a certificate group matching policy, specifying to match the group from the rules, or from the organizational unit (OU) field, or to use a default group for all certificate users. The default is Group 2. The IKE Policy is greyed out. For IKEv1, the remote peer policy must also specify a lifetime less than or equal to the lifetime in the policy the initiator sent. The wizard defaults to a seriesof global phase 1 and phase 2 policies. The ASA supports IKEv1 for connections from the legacy Cisco VPN client, and IKEv2 for the AnyConnect VPN client. For example, you can create access lists to protect all IP traffic between two subnets or two hosts. Be aware that if you enter the clear configure crypto command without arguments, you remove the entire crypto configuration, including all certificates. Peers requesting remote access tunnels typically have private IP addresses assigned by the headend. I do get some granularity (And I stress some) with Phase 2. This completes the connection profile but we still have to configure the pre-shared keys. Crypto Map to the interface facing the remote peer(s). This ensures correct processing of IPsec by both peers. This is done with a tunnel-group: ASA1 (config)# tunnel-group 10.10.10.2 type ipsec-l2l The IP address above is the IP address of the OUTSIDE interface on ASA2. This feature is disabled by default. This is true for all VPN scenarios except LAN-to-LAN IKEv1 connections in main mode that authenticate with preshared keys. For example, to support U-turn traffic on Security Appliance B, add a conceptual permit B B ACE to ACL1. Assign an access list to a crypto map: In the following example, mymap is the name of the crypto map set. Step 4 Apply the crypto maps collectively as a crypto map set by assigning the crypto map name they share to the interface. To fix an incomplete crypto map, remove the crypto map, add the missing entries, and reapply it. in ikeV2 the tunnel used to stay up only for few seconds letting us not able to understand the problem. To enable waiting for all active sessions to voluntarily terminate before the ASA reboots, enter the following command: Use the reload command to reboot the ASA. Because of this, I cannot know for sure whether I am configured correctly on my end for phase 1. The clear configure crypto command includes arguments that let you remove elements of the crypto configuration, including IPsec, crypto maps, dynamic crypto maps, CA trustpoints, all certificates, certificate map configurations, and ISAKMP. To create a certificate map, use the crypto ca certificate map command. It sets the encryption type (AES-256), the hashing/integrity algorithm (SHA-256), The Diffie Hellman group exchange version, and the Level of PRF (Pseudo Random Function). The prompt displays IKE policy configuration mode. This occurs with the following types of peers: Both LAN-to-LAN and remote access peers can use DHCP to obtain a public IP address. necessary to bind the Crypto Map to the interface facing the remote peer(s). The priority number uniquely identifies the policy and determines the priority of the policy in IKE negotiations. The peers negotiate the settings to use for each SA. The default is Triple DES. However, when you use certificate authentication, there are certain caveats to keep in mind. The default is 86400 seconds (24 hours). In the following example, mymap is the name of the crypto map set to which you might want to add crypto maps: The sequence number ( seq-num ) shown in the syntax above distinguishes one crypto map from another one with the same name. You can enable IPsec over TCP for up to 10 ports that you specify. Determines ISAKMP negotiation by connection type: Uses the fully qualified domain name of the hosts exchanging ISAKMP identity information (default). ISAKMP and IPsec accomplish the following: The ASA functions as a bidirectional tunnel endpoint. Active/Active failover configurations are not supported. The reload and reload-wait commands are available in privileged EXEC mode; neither includes the isakmp prefix. As a general rule, a shorter lifetime provides more secure ISAKMP negotiations (up to a point). 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. This is done in the ipsec.secrets file. Step 2 Specify which IKEv1 transform sets or IKEv2 proposals are allowed for this dynamic crypto map. For the Server license, 500-50,000 in increments of 500 and 50,000-545,000 in increments of 1000. In Figure 64-4, IPsec protection applies to traffic between Host 10.0.0.1 and Host 10.2.2.2 as the data exits the outside interface on Security Appliance A toward Host 10.2.2.2. Therefore, the peers must exchange identification information before establishing a secure SA. 02:16 AM. Cisco AnyConnect Overview Creating Object Group Step-2 ENCRYPTION DOMAIN Step-3 PHASE 1 PROPOSAL We need to create proposal for phase 1 which will be used to> negotiate phase 1 parameters. Qualified clients and peers include the following: To enable disconnect notification to IPsec peers, enter the crypto isakmp disconnect-notify command. Within this article we will show you the steps required to build an IKEv2 IPSEC Site to Site VPN on a Cisco ASA firewall. This a very clear manual. Indicates that if a tunnel group is not determined based on a rule lookup or taken from the OU or ike-id methods, then use the peer IP address. Therefore, these features are unavailable. This security association includes negotiating with the peer about the SA and modifying or deleting the SA. A crypto map set may include a dynamic crypto map. Be sure to set the crypto maps referencing dynamic maps to be the lowest priority entries (highest sequence numbers) in a crypto map set. ou Indicates that if a tunnel-group is not determined based on a rule lookup, then use the value of the OU in the subject distinguished name (DN). It contains the following topics: IPsec tunnels are sets of SAs that the ASA establishes between peers. If you set the reload-wait command, you can use the reload quick command to override the reload-wait setting. Optional permanent or time-based licenses: 10, 25, 50, 100, 250, 500, 750, 1000, 2500, or 5000 sessions. To enable IKEv1 or IKEv2, use the crypto ikev1 | ikev2 enable command from global configuration mode: crypto ikev1 | ikev2 enable interface-name. It is a client to the ASA feature only. Lets start the IPsec daemon: In a previous lesson I covered the configuration of IKEv2 IPsec VPN between two Cisco ASA firewalls so I wont explain all commands one by one again. Lets start with the strongSwan configuration! Step 3 Map the IKEv1 transform sets or IKEv2 proposals to the crypto maps to apply IPsec to the data flows. In IPsec client-to-LAN connections, the ASA functions only as responder. To set the terms of the ISAKMP negotiations, you create an IKE policy, which includes the following: With IKEv1 policies, you set one value for each parameter. We recommend that for every crypto access list specified for a static crypto map that you define at the local peer, you define a mirror image crypto access list at the remote peer. Phase 1 (IKEv1) Complete these steps for the Phase 1 configuration: Enter this command into the CLI in order to enable IKEv1 on the outside interface: crypto ikev1 enable outside Create an IKEv1 policy that defines the algorithms/methods to be used for hashing, authentication, Diffie-Hellman group, lifetime, and encryption: crypto ikev1 policy 1 New here? The lower the priority number, the higher the priority. Base license and Security Plus license: 250 sessions. In IPsec terminology, a peer is a remote-access client or another secure gateway. (Optional) Refers to parameters specified by the crypto ca certificate map command. If you want to apply interface access lists to IPsec traffic, use the no form of the sysopt connection permit-vpn command. transforms: 4(20060): AES-CBC(20060): SHA512(20060): SHA512(20060): DH_GROUP_2048_MODP/Group 14(20060):IKEv2-PROTO-4: (20060): Sending Packet [To 100.x.x.x:500/From 50.x.x.x:500/VRF i0:f0](20060): Initiator SPI : 86CD26F832273889 - Responder SPI : 0000000000000000 Message id: 0(20060): IKEv2 IKE_SA_INIT Exchange REQUESTIKEv2-PROTO-5: (20060): Next payload: SA, version: 2.0 (20060): Exchange type: IKE_SA_INIT, flags: INITIATOR (20060): Message id: 0, length: 486(20060):Payload contents:(20060): SA(20060): Next payload: KE, reserved: 0x0, length: 144(20060): last proposal: 0x2, reserved: 0x0, length: 52Proposal: 1, Protocol id: IKE, SPI size: 0, #trans: 5(20060): last transform: 0x3, reserved: 0x0: length: 12type: 1, reserved: 0x0, id: AES-CBC(20060): last transform: 0x3, reserved: 0x0: length: 8type: 2, reserved: 0x0, id: SHA1(20060): last transform: 0x3, reserved: 0x0: length: 8type: 3, reserved: 0x0, id: SHA96(20060): last transform: 0x3, reserved: 0x0: length: 8type: 4, reserved: 0x0, id: DH_GROUP_1536_MODP/Group 5(20060): last transform: 0x0, reserved: 0x0: length: 8type: 4, reserved: 0x0, id: DH_GROUP_1024_MODP/Group 2(20060): last proposal: 0x2, reserved: 0x0, length: 44Proposal: 2, Protocol id: IKE, SPI size: 0, #trans: 4(20060): last transform: 0x3, reserved: 0x0: length: 12type: 1, reserved: 0x0, id: AES-CBC(20060): last transform: 0x3, reserved: 0x0: length: 8type: 2, reserved: 0x0, id: SHA256(20060): last transform: 0x3, reserved: 0x0: length: 8type: 3, reserved: 0x0, id: SHA256(20060): last transform: 0x0, reserved: 0x0: length: 8type: 4, reserved: 0x0, id: DH_GROUP_2048_MODP/Group 14(20060): last proposal: 0x0, reserved: 0x0, length: 44Proposal: 3, Protocol id: IKE, SPI size: 0, #trans: 4(20060): last transform: 0x3, reserved: 0x0: length: 12type: 1, reserved: 0x0, id: AES-CBC(20060): last transform: 0x3, reserved: 0x0: length: 8type: 2, reserved: 0x0, id: SHA512(20060): last transform: 0x3, reserved: 0x0: length: 8type: 3, reserved: 0x0, id: SHA512(20060): last transform: 0x0, reserved: 0x0: length: 8type: 4, reserved: 0x0, id: DH_GROUP_2048_MODP/Group 14(20060): KE(20060): Next payload: N, reserved: 0x0, length: 136(20060): DH group: 2, Reserved: 0x0(20060):(20060): e6 df 46 72 ba dc ce e1 24 93 57 31 7e 1f d8 35(20060): b2 a1 14 e0 bc 13 15 0d af a8 dd 5f 63 3f 13 72(20060): 1e 65 89 9a cb 1c 99 62 e7 eb 81 9e 2a c2 a4 62(20060): da 74 2e 7a d1 7a e2 c7 18 79 b4 f4 6d d8 1a 60(20060): cf d1 d4 13 bc 48 6e 0f 3a 42 f5 d2 e7 9f 7d 93(20060): ab c9 92 cd 18 d2 59 54 91 6d c5 dd 00 91 04 92(20060): 77 1c eb 3a 2e 1c 41 ae 84 77 8f 5f e8 4d eb 75(20060): 42 c0 ac 8f cf c3 a5 c6 5a 82 9b d7 9e fe 04 dd(20060): N(20060): Next payload: VID, reserved: 0x0, length: 68(20060):(20060): e5 32 54 dd 67 8c ee a4 5c 90 e9 7d 18 ec c7 78(20060): b6 b8 a1 48 99 96 92 7b 9f 47 b9 d3 ac 79 e9 2d(20060): ab 4d ec b4 c4 14 f7 3f 4b dc 15 e2 c6 45 d6 1c(20060): 52 88 87 20 0e 8b 23 38 e0 a3 0d 96 42 e0 c9 b7(20060): VID(20060): Next payload: VID, reserved: 0x0, length: 23(20060):(20060): 43 49 53 43 4f 2d 44 45 4c 45 54 45 2d 52 45 41(20060): 53 4f 4e(20060): VID(20060): Next payload: NOTIFY, reserved: 0x0, length: 59(20060):(20060): 43 49 53 43 4f 28 43 4f 50 59 52 49 47 48 54 29(20060): 26 43 6f 70 79 72 69 67 68 74 20 28 63 29 20 32(20060): 30 30 39 20 43 69 73 63 6f 20 53 79 73 74 65 6d(20060): 73 2c 20 49 6e 63 2e(20060): NOTIFY(IKEV2_FRAGMENTATION_SUPPORTED)(20060): Next payload: VID, reserved: 0x0, length: 8(20060): Security protocol id: Unknown - 0, spi size: 0, type: IKEV2_FRAGMENTATION_SUPPORTED(20060): VID(20060): Next payload: NONE, reserved: 0x0, length: 20(20060):(20060): 40 48 b7 d5 6e bc e8 85 25 e7 de 7f 00 d6 c2 d3(20060):IKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=0000000000000000 (I) MsgID = 00000000 CurState: I_BLD_INIT Event: EV_INSERT_SAIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=0000000000000000 (I) MsgID = 00000000 CurState: I_WAIT_INIT Event: EV_NO_EVENT(20060):IKEv2-PROTO-4: (20060): Received Packet [From 100.x.x.x:500/To 50.x.x.x:500/VRF i0:f0](20060): Initiator SPI : 86CD26F832273889 - Responder SPI : D92B13B3765EEB57 Message id: 0(20060): IKEv2 IKE_SA_INIT Exchange RESPONSEIKEv2-PROTO-5: (20060): Next payload: SA, version: 2.0 (20060): Exchange type: IKE_SA_INIT, flags: RESPONDER MSG-RESPONSE (20060): Message id: 0, length: 475(20060):Payload contents:(20060): SA(20060): Next payload: KE, reserved: 0x0, length: 48(20060): last proposal: 0x0, reserved: 0x0, length: 44Proposal: 1, Protocol id: IKE, SPI size: 0, #trans: 4(20060): last transform: 0x3, reserved: 0x0: length: 12type: 1, reserved: 0x0, id: AES-CBC(20060): last transform: 0x3, reserved: 0x0: length: 8type: 2, reserved: 0x0, id: SHA1(20060): last transform: 0x3, reserved: 0x0: length: 8type: 3, reserved: 0x0, id: SHA96(20060): last transform: 0x0, reserved: 0x0: length: 8type: 4, reserved: 0x0, id: DH_GROUP_1024_MODP/Group 2(20060): KE(20060): Next payload: N, reserved: 0x0, length: 136(20060): DH group: 2, Reserved: 0x0(20060):(20060): bd be 36 98 0d 93 60 ad b9 7c 52 2f 22 08 6f ff(20060): 9c e7 7f 8e 13 51 2c 86 06 3e 92 52 ee 17 75 dc(20060): 38 e8 a8 96 27 1f 59 92 02 03 ba ad 23 a2 0d 30(20060): 51 b3 90 16 46 2e 00 1d d9 68 f1 29 0c 2a 02 21(20060): bd 12 1a 4a d5 c4 4d ce ef d1 b3 b1 21 cf 7f 0b(20060): e5 54 41 04 0f 4e 6b 2f a8 48 4c f6 de 22 35 03(20060): 9c ca 31 a2 d2 e6 83 42 97 5f fe 20 3d 22 95 f2(20060): ee bd fe 0c 5d e4 27 9c 45 2f d5 70 75 8c a2 96(20060): N(20060): Next payload: VID, reserved: 0x0, length: 68(20060):(20060): 8d 2c 1e 59 02 7f fa 02 fa 12 a4 70 6e f6 90 72(20060): 40 be 1f 2a 23 88 5d 13 ae 95 c4 d0 6e 2c f1 ce(20060): 1c 8b 86 f5 98 ce d5 95 7b 3a 5c 66 f3 6b 72 f7(20060): 6d cf 91 9a d0 ac 01 a8 04 98 30 af 00 f7 de 61(20060): VID(20060): Next payload: VID, reserved: 0x0, length: 23(20060):(20060): 43 49 53 43 4f 2d 44 45 4c 45 54 45 2d 52 45 41(20060): 53 4f 4e(20060): VID(20060): Next payload: CERTREQ, reserved: 0x0, length: 59(20060):(20060): 43 49 53 43 4f 28 43 4f 50 59 52 49 47 48 54 29(20060): 26 43 6f 70 79 72 69 67 68 74 20 28 63 29 20 32(20060): 30 30 39 20 43 69 73 63 6f 20 53 79 73 74 65 6d(20060): 73 2c 20 49 6e 63 2e(20060): CERTREQ(20060): Next payload: NOTIFY, reserved: 0x0, length: 85(20060): Cert encoding X.509 Certificate - signature(20060): CertReq data: 80 bytes(20060): NOTIFY(IKEV2_FRAGMENTATION_SUPPORTED)(20060): Next payload: VID, reserved: 0x0, length: 8(20060): Security protocol id: Unknown - 0, spi size: 0, type: IKEV2_FRAGMENTATION_SUPPORTED(20060): VID(20060): Next payload: NONE, reserved: 0x0, length: 20(20060):(20060): 40 48 b7 d5 6e bc e8 85 25 e7 de 7f 00 d6 c2 d3(20060):(20060): Decrypted packet:(20060): Data: 475 bytesIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_WAIT_INIT Event: EV_RECV_INITIKEv2-PROTO-7: (20060): Processing IKE_SA_INIT messageIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_CHK4_NOTIFYIKEv2-PROTO-4: (20060): Processing IKE_SA_INIT messageIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_VERIFY_MSGIKEv2-PROTO-4: (20060): Verify SA init messageIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_PROC_MSGIKEv2-PROTO-4: (20060): Processing IKE_SA_INIT messageIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_DETECT_NATIKEv2-PROTO-7: (20060): Process NAT discovery notifyIKEv2-PROTO-4: (20060): NAT-T is disabledIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_CHK_NAT_TIKEv2-PROTO-4: (20060): Checking NAT discoveryIKEv2-PROTO-4: (20060): NAT not foundIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_CHK_CONFIG_MODEIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_GEN_DH_SECRETIKEv2-PROTO-4: (20060): [IKEv2 -> Crypto Engine] Computing DH secret key, DH Group 2IKEv2-PROTO-4: (20060): Request queued for computation of DH secretIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_NO_EVENTIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_OK_RECD_DH_SECRET_RESPIKEv2-PROTO-7: (20060): Action: Action_NullIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_GEN_SKEYIDIKEv2-PROTO-7: (20060): Generate skeyidIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_DONEIKEv2-PROTO-4: (20060): IETF Fragmentation is enabledIKEv2-PROTO-4: (20060): Cisco Fragmentation is enabledIKEv2-PROTO-7: (20060): Cisco DeleteReason Notify is enabledIKEv2-PROTO-4: (20060): Completed SA init exchangeIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_CHK4_ROLEIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_GET_CONFIG_MODEIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_CHK_EAPIKEv2-PROTO-4: (20060): Check for EAP exchangeIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_GEN_AUTHIKEv2-PROTO-4: (20060): Generate my authentication dataIKEv2-PROTO-4: (20060): Use preshared key for id 50.x.x.x, key len 24IKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_CHK_AUTH_TYPEIKEv2-PROTO-4: (20060): Get my authentication methodIKEv2-PROTO-4: (20060): My authentication method is 'PSK'IKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_OK_AUTH_GENIKEv2-PROTO-4: (20060): Check for EAP exchangeIKEv2-PROTO-7: (20060): SM Trace-> SA: I_SPI=86CD26F832273889 R_SPI=D92B13B3765EEB57 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_SEND_AUTHIKEv2-PROTO-4: (20060): Generating IKE_AUTH messageIKEv2-PROTO-4: (20060): Constructing IDi payload: '50.x.x.x' of type 'IPv4 address'IKEv2-PROTO-4: (20060): ESP Proposal: 1, SPI size: 4 (IPSec negotiation),Num. To set the terms of the ISAKMP negotiations, you create an IKE policy, which includes the following: The authentication type required of the IKEv1 peer, either RSA signature using certificates or preshared key (PSK).
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