For more information on the differences and an explanation of the packet exchange, refer toIKEv2 Packet Exchange and Protocol Level Debugging. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Hi, made some more tests and my problem is the following, IPSec tunnel can be established if remote end is configured without any specific encryption domains for the communication and with a transport network within the tunnel (for routing purpose - like in GRE Tunnel). description Cisco AnyConnect IKEv2 ip unnumbered GigabitEthernet0/0 tunnel mode ipsec ipv4 tunnel protection ipsec profile staff Take a break, you have now completed the main config on the router, and its time to move onto configuration relating to the client. Options. 4 Sep 18 2018 17:40:58 750003 Local:80.x.y.z:500 Remote:51.a.b.c:500 Username:51.a.b.c IKEv2 Negotiation aborted due to ERROR: Detected unsupported . Initiates SA creation, *Nov 11 19:30:34.811: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=0000000000000000 (I) MsgID = 00000000 CurState: IDLE Event: EV_INIT_SA. IKEv2 Packet Exchange and Protocol Level Debugging, Technical Support & Documentation - Cisco Systems, Router 1 receives a packet that matches the crypto acl for peer ASA 10.0.0.2. I think i have the problem with the Source Interface (i receive"IKEv2-ERROR:Address type not supported" in log). #address 10.0.0.2. This response packet contains: ISAKMP Header(SPI/ version/flags), IDr(responder's identity), AUTH payload, SAr2(initiates the SA-similar to the phase 2 transform set exchange in IKEv1), and TSi and TSr(Initiator and Responder Traffic selectors). Could you please clarify, as I'm waiting for this feature being available for some months now. It's in roadmap. Let me ask you something - what format do you enter user/domain information in the client? #peer R3. Cisco recommends that you have knowledge of the packet exchange for IKEv2. In this document . I have a similar problem with an IPSec Tunnel to an external Firewall. Router 2 receives and verifies the authentication data received from Router 1. I opened an SR with TAC for the exact same reason. Beginner. You cannot use PSK for authentication of a Remote Access FlexVPN, see this screenshot below from Cisco live presentation BRKSEX-2881. N(Notify payload-optional). Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! 05-18-2021 12:04 PM. You cannot configure IKEv2 through the user interface. New here? #proposal cisco. I also had to mention the same ACL in the local policy for this to work. Edit your Feature Template for the VPN Interface Ethernet that is applied to your physical interface in VPN0.Under ACL/QOS add a IPv4 Ingress Access List using the name of the ACL you created in the first step. Local Address = 0.0.0.0. A Notify Payload might appear in a response message (usually specifying why a request was rejected), in an informational exchange (to report an error not in an IKE request), or in any other message to indicate sender capabilities or to modify the meaning of the request. 2023 Cisco and/or its affiliates. It contains: ISAKMP Header (SPI/version/flags), SAi1 (cryptographic algorithm that IKE initiator supports), KEi (DH public Key value of the initiator), and N (Initiator Nonce). The Notify Payload, is used to transmit informational data, such as error conditions and state transitions, to an IKE peer. I have a working IPSEC project in GNS3 that uses csr1000 and 7200 routers, VTI interfaces, and IKEv1. To a remote end configured with encryption domains i wasnt sucessfull. You can configure IPsec on tunnels for VPN 1 through 65530, except for 512. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/System-Interface/systems-interfaces-book/configure-interfaces.html. You can only use PSK when the client is another FlexVPN hardware (router) client or Strongswan. The sample configuration connects a Cisco ASA device to an Azure route-based VPN gateway. INFO_R Event: EV_CHK_INFO_TYPE IKEv2-PROTO-5: (99): SM Trace-> SA: I . I'll log a TAC case next. Nonce Ni (optional): If the CHILD_SA is created as part of the initial exchange, a second KE payload and nonce must not be sent), KEi (Key-optional): The CREATE_CHILD_SA request might optionally contain a KE payload for an additional DH exchange to enable stronger guarantees of forward secrecy for the CHILD_SA. All rights reserved. Update: This was a version error, using wrong version of anyconnect, this has now been resolved. Palo Alto IP: 1.1.1.1 Cisco ASA IP: 2.2.2.2 Cisco ASA iKev2 and IPsec parameters: Thank You. I've tried domain\user, [email protected] and just plain user. Cisco recommends that you have knowledge of the packet exchange for IKEv2. All of the devices used in this document started with a cleared (default) configuration. Do you had to apply some NAT config? Thanks again for this article. Same in every possible way. Hence, you would see 'PFS (Y/N): N, DH group: none' until the first rekey. If the SA offers include different DH groups, KEi must be an element of the group the initiator expects the responder to accept. Relevant Configuration:crypto ikev2 proposal PHASE1-prop encryption 3des aes-cbc-128 integrity sha1 group 2 crypto ikev2 keyring KEYRNG peer peer2 address 10.0.0.1 255.255.255.0 hostname host2 pre-shared-key local cisco pre-shared-key remote cisco, *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):Next payload: SA, version: 2.0 Exchange type:IKE_SA_INIT,flags:RESPONDER MSG-RESPONSEMessage id: 0, length: 449 Payload contents: SANext payload: KE, reserved: 0x0, length: 48 last proposal: 0x0, reserved: 0x0, length: 44 Proposal: 1, Protocol id: IKE, SPI size: 0, #trans: 4 last transform: 0x3, reserved: 0x0: length: 12 type: 1, reserved: 0x0, id: AES-CBC last transform: 0x3, reserved: 0x0: length: 8 type: 2, reserved: 0x0, id: SHA1 last transform: 0x3, reserved: 0x0: length: 8 type: 3, reserved: 0x0, id: SHA96 last transform: 0x0, reserved: 0x0: length: 8 type: 4, reserved: 0x0, id: DH_GROUP_1024_MODP/Group 2 KENext payload: N, reserved: 0x0, length: 136 DH group: 2, Reserved: 0x0 NNext payload: VID, reserved: 0x0, length: 24 VID Next payload: VID, reserved: 0x0, length: 23 VID Next payload: NOTIFY, reserved: 0x0, length: 21 NOTIFY(NAT_DETECTION_SOURCE_IP) Next payload: NOTIFY, reserved: 0x0, length: 28 Security protocol id: IKE, spi size: 0, type: NAT_DETECTION_SOURCE_IP NOTIFY(NAT_DETECTION_DESTINATION_IP) Next payload: CERTREQ, reserved: 0x0, length: 28 Security protocol id: IKE, spi size: 0, type: NAT_DETECTION_DESTINATION_IP CERTREQ Next payload: NOTIFY, reserved: 0x0, length: 105 Cert encoding Hash and URL of PKIX NOTIFY(HTTP_CERT_LOOKUP_SUPPORTED) Next payload: NONE, reserved: 0x0, length: 8 Security protocol id: IKE, spi size: 0, type: HTTP_CERT_LOOKUP_SUPPORTED, *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: INIT_DONE Event: EV_DONE *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):Cisco DeleteReason Notify is enabled *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: INIT_DONE Event: EV_CHK4_ROLE *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: INIT_DONE Event:EV_START_TMR *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_WAIT_AUTH Event: EV_NO_EVENT *Nov 11 19:30:34.822: IKEv2:New ikev2 sa request admitted *Nov 11 19:30:34.822: IKEv2:Incrementing outgoing negotiating sa count by one, *Nov 11 19:30:34.823: IKEv2:Got a packet from dispatcher *Nov 11 19:30:34.823: IKEv2:Got a packet from dispatcher *Nov 11 19:30:34.823: IKEv2:Processing an item off the pak queue, I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: INIT_DONE Event:EV_START_TMR, *Nov 11 19:30:34.823: IKEv2:(SA ID = 1):Next payload: SA, version: 2.0 Exchange type: IKE_SA_INIT, flags:RESPONDER MSG-RESPONSEMessage id: 0, length: 449 Payload contents: SANext payload: KE, reserved: 0x0, length: 48 last proposal: 0x0, reserved: 0x0, length: 44 Proposal: 1, Protocol id: IKE, SPI size: 0, #trans: 4 last transform: 0x3, reserved: 0x0: length: 12 type: 1, reserved: 0x0, id: AES-CBC last transform: 0x3, reserved: 0x0: length: 8 type: 2, reserved: 0x0, id: SHA1 last transform: 0x3, reserved: 0x0: length: 8 type: 3, reserved: 0x0, id: SHA96 last transform: 0x0, reserved: 0x0: length: 8 type: 4, reserved: 0x0, id: DH_GROUP_1024_MODP/Group 2 KENext payload: N, reserved: 0x0, length: 136 DH group: 2, Reserved: 0x0 NNext payload: VID, reserved: 0x0, length: 24 *Nov 11 19:30:34.823: IKEv2:Parse Vendor Specific Payload: CISCO-DELETE-REASON VID Next payload: VID, reserved: 0x0, length: 23 *Nov 11 19:30:34.823: IKEv2:Parse Vendor Specific Payload: (CUSTOM) VID Next payload: NOTIFY, reserved: 0x0, length: 21 *Nov 11 19:30:34.823: IKEv2:Parse Notify Payload: NAT_DETECTION_SOURCE_IP NOTIFY(NAT_DETECTION_SOURCE_IP) Next payload: NOTIFY, reserved: 0x0, length: 28 Security protocol id: IKE, spi size: 0, type: NAT_DETECTION_SOURCE_IP *Nov 11 19:30:34.824: IKEv2:Parse Notify Payload: NAT_DETECTION_DESTINATION_IP NOTIFY(NAT_DETECTION_DESTINATION_IP) Next payload: CERTREQ, reserved: 0x0, length: 28 Security protocol id: IKE, spi size: 0, type: NAT_DETECTION_DESTINATION_IP CERTREQ Next payload: NOTIFY, reserved: 0x0, length: 105 Cert encoding Hash and URL of PKIX *Nov 11 19:30:34.824: IKEv2:Parse Notify Payload: HTTP_CERT_LOOKUP_SUPPORTED NOTIFY(HTTP_CERT_LOOKUP_SUPPORTED) Next payload: NONE, reserved: 0x0, length: 8 Security protocol id: IKE, spi size: 0, type: HTTP_CERT_LOOKUP_SUPPORTED, *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_WAIT_INIT Event: EV_RECV_INIT *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):Processing IKE_SA_INIT message *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_CHK4_NOTIFY *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_VERIFY_MSG *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_PROC_MSG *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_DETECT_NAT *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):Process NAT discovery notify *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):Processing nat detect src notify *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):Remote address matched *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):Processing nat detect dst notify *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):Local address matched *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):No NAT found *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_CHK_NAT_T *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_PROC_INIT Event: EV_CHK_CONFIG_MODE *Nov 11 19:30:34.824: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: INIT_DONE Event:EV_GEN_DH_SECRET *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_NO_EVENT *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_OK_RECD_DH_SECRET_RESP *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):Action: Action_Null *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: INIT_DONE Event:EV_GEN_SKEYID *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):Generate skeyid *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_DONE *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):Cisco DeleteReason Notify is enabled *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: INIT_DONE Event: EV_CHK4_ROLE *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_GET_CONFIG_MODE *Nov 11 19:30:34.831: IKEv2:Sending config data to toolkit *Nov 11 19:30:34.831: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000000 CurState: I_BLD_AUTH Event: EV_CHK_EAP. ", https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/Security/Security-Book/security-book_chapter_01.html?bookSearch=true#c_Configuring_IKE_Enabled_IPsec_Tunnels_12216.xml. Client Related Configuration The difference between IKEv1 and IKEv2 is that, in the latter, the Child SAs are created as part of AUTH exchange itself. Relevant Configuration:crypto ikev2 proposal PHASE1-prop encryption 3des aes-cbc-128 integrity sha1 group 2crypto ikev2 keyring KEYRNG peer peer1 address 10.0.0.2 255.255.255.0 hostname host1 pre-shared-key local cisco pre-shared-key remote cisco, *Nov 11 19:30:34.814: IKEv2:Got a packet from dispatcher *Nov 11 19:30:34.814: IKEv2:Processing an item off the pak queue *Nov 11 19:30:34.814: IKEv2:New ikev2 sa request admitted *Nov 11 19:30:34.814: IKEv2:Incrementing incoming negotiating sa count by one, *Nov 11 19:30:34.814: IKEv2:Next payload: SA, version: 2.0 Exchange type: IKE_SA_INIT, flags: INITIATOR Message id: 0, length: 344 Payload contents: SA Next payload: KE, reserved: 0x0, length: 56 last proposal: 0x0, reserved: 0x0, length: 52 Proposal: 1, Protocol id: IKE, SPI size: 0, #trans: 5 last transform: 0x3, reserved: 0x0: length: 8 type: 1, reserved: 0x0, id: 3DES last transform: 0x3, reserved: 0x0: length: 12 type: 1, reserved: 0x0, id: AES-CBC last transform: 0x3, reserved: 0x0: length: 8 type: 2, reserved: 0x0, id: SHA1 last transform: 0x3, reserved: 0x0: length: 8 type: 3, reserved: 0x0, id: SHA96 last transform: 0x0, reserved: 0x0: length: 8 type: 4, reserved: 0x0, id: DH_GROUP_1024_MODP/Group 2 KE Next payload: N, reserved: 0x0, length: 136 DH group: 2, Reserved: 0x0 N Next payload: VID, reserved: 0x0, length: 24 *Nov 11 19:30:34.814: IKEv2:Parse Vendor Specific Payload: CISCO-DELETE-REASON VID Next payload: VID, reserved: 0x0, length: 23 *Nov 11 19:30:34.814: IKEv2:Parse Vendor Specific Payload: (CUSTOM) VID Next payload: NOTIFY, reserved: 0x0, length: 21 *Nov 11 19:30:34.814: IKEv2:Parse Notify Payload: NAT_DETECTION_SOURCE_IP NOTIFY(NAT_DETECTION_SOURCE_IP) Next payload: NOTIFY, reserved: 0x0, length: 28 Security protocol id: IKE, spi size: 0, type: NAT_DETECTION_SOURCE_IP *Nov 11 19:30:34.814: IKEv2:Parse Notify Payload: NAT_DETECTION_DESTINATION_IP NOTIFY(NAT_DETECTION_DESTINATION_IP) Next payload: NONE, reserved: 0x0, length: 28 Security protocol id: IKE, spi size: 0, type: NAT_DETECTION_DESTINATION_IP, *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: IDLE Event:EV_RECV_INIT *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_INIT Event:EV_VERIFY_MSG *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_INIT Event:EV_INSERT_SA *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_INIT Event:EV_GET_IKE_POLICY *Nov 11 19:30:34.814: IKEv2:Adding Proposal default to toolkit policy *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_INIT Event:EV_PROC_MSG *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_INIT Event: EV_DETECT_NAT *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Process NAT discovery notify *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Processing nat detect src notify *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Remote address matched *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Processing nat detect dst notify *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Local address matched *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):No NAT found *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_INIT Event: EV_CHK_CONFIG_MODE *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_SET_POLICY *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Setting configured policies *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_CHK_AUTH4PKI *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_PKI_SESH_OPEN *Nov 11 19:30:34.814: IKEv2:(SA ID = 1):Opening a PKI session *Nov 11 19:30:34.815: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event:EV_GEN_DH_KEY *Nov 11 19:30:34.815: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_NO_EVENT *Nov 11 19:30:34.815: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event:EV_OK_RECD_DH_PUBKEY_RESP *Nov 11 19:30:34.815: IKEv2:(SA ID = 1):Action: Action_Null *Nov 11 19:30:34.815: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event:EV_GEN_DH_SECRET *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_NO_EVENT *Nov 11 19:30:34.822: IKEv2:%Getting preshared key by address 10.0.0.1 *Nov 11 19:30:34.822: IKEv2:Adding Proposal default to toolkit policy *Nov 11 19:30:34.822: IKEv2:(2): Choosing IKE profile IKEV2-SETUP *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_OK_RECD_DH_SECRET_RESP *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):Action: Action_Null *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event:EV_GEN_SKEYID *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):Generate skeyid *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_GET_CONFIG_MODE *Nov 11 19:30:34.822: IKEv2:IKEv2 responder - no config data to send in IKE_SA_INIT exch *Nov 11 19:30:34.822: IKEv2:No config data to send to toolkit: *Nov 11 19:30:34.822: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000000 CurState: R_BLD_INIT Event: EV_BLD_MSG *Nov 11 19:30:34.822: IKEv2:Construct Vendor Specific Payload: DELETE-REASON *Nov 11 19:30:34.822: IKEv2:Construct Vendor Specific Payload: (CUSTOM) *Nov 11 19:30:34.822: IKEv2:Construct Notify Payload: NAT_DETECTION_SOURCE_IP *Nov 11 19:30:34.822: IKEv2:Construct Notify Payload: NAT_DETECTION_DESTINATION_IP *Nov 11 19:30:34.822: IKEv2:Construct Notify Payload: HTTP_CERT_LOOKUP_SUPPORTED. First pair of messages is the IKE_SA_INIT exchange. Responder initiates SA creation for that peer. Router 2 builds the responder message for IKE_SA_INIT exchange, which is received by ASA1. The link you shared is for a vEdge setup, the one I've found is for cEdge 16.12.x. The vulnerability is due to incorrect handling of crafted IKEv2 SA-Init packets. This is the CREATE_CHILD_SA request. Router 2 builds the response to IKE_AUTH packet that it received from Router 1. The information in this document is based on these software and hardware versions: The information in this document was created from the devices in a specific lab environment. Following is the output of above router debug crypto ikev2: 189014: *Aug 8 14:01:22.145 Chicago: IKEv2:Received Packet [From 2.2.2.2:500/To 1.1.1.1:500/VRF i0:f0], Initiator SPI : 8A15E970577C6140 - Responder SPI : 0000000000000000 Message id: 0, SA KE N NOTIFY(REDIRECT_SUPPORTED) NOTIFY(NAT_DETECTION_SOURCE_IP) NOTIFY(NAT_DETECTION_DESTINATION_IP) NOTIFY(Unknown - 16430), 189015: *Aug 8 14:01:22.145 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Verify SA init message, 189016: *Aug 8 14:01:22.145 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Insert SA, 189017: *Aug 8 14:01:22.145 Chicago: IKEv2:Searching Policy with fvrf 0, local address 1.1.1.1, 189018: *Aug 8 14:01:22.145 Chicago: IKEv2:Found Policy 'ikev2policy', 189019: *Aug 8 14:01:22.145 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Processing IKE_SA_INIT message, 189020: *Aug 8 14:01:22.145 Chicago: IKEv2:(SA ID = 1):[IKEv2 -> PKI] Retrieve configured trustpoint(s), 189021: *Aug 8 14:01:22.145 Chicago: IKEv2:(SA ID = 1):[PKI -> IKEv2] Retrieved trustpoint(s): 'TP-self-signed-653483565', 189022: *Aug 8 14:01:22.145 Chicago: IKEv2:(SA ID = 1):[IKEv2 -> PKI] Get Public Key Hashes of trustpoints, 189023: *Aug 8 14:01:22.145 Chicago: IKEv2:(SA ID = 1):[PKI -> IKEv2] Getting of Public Key Hashes of trustpoints FAILED, 189024: *Aug 8 14:01:22.145 Chicago: IKEv2:Failed to retrieve Certificate Issuer list, 189025: *Aug 8 14:01:22.145 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):[IKEv2 -> Crypto Engine] Computing DH public key, DH Group 14, 189026: *Aug 8 14:01:22.145 Chicago: IKEv2:(SA ID = 1):[Crypto Engine -> IKEv2] DH key Computation PASSED, 189027: *Aug 8 14:01:22.145 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Request queued for computation of DH key, 189028: *Aug 8 14:01:22.149 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):[IKEv2 -> Crypto Engine] Computing DH secret key, DH Group 14, 189029: *Aug 8 14:01:22.149 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Request queued for computation of DH secret, 189030: *Aug 8 14:01:22.161 Chicago: IKEv2:(SA ID = 1):[Crypto Engine -> IKEv2] DH key Computation PASSED, 189031: *Aug 8 14:01:22.161 Chicago: IKEv2:(SA ID = 1):[IKEv2 -> Crypto Engine] Calculate SKEYSEED and create rekeyed IKEv2 SA, 189032: *Aug 8 14:01:22.161 Chicago: IKEv2:(SA ID = 1):[Crypto Engine -> IKEv2] SKEYSEED calculation and creation of rekeyed IKEv2 SA PASSED, 189033: *Aug 8 14:01:22.161 Chicago: IKEv2:IKEv2 responder - no config data to send in IKE_SA_INIT exch, 189034: *Aug 8 14:01:22.161 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Generating IKE_SA_INIT message. This mode is more secure, and uses three . I had the same Firebox and RADIUS server working for IPSec MUVPN, but not for IKEv2. Refer toCisco Technical Tips Conventionsfor more information on document conventions. Router1 verifies and processes the response: (1) The initiator DH secret key is computed, and (2) the initiator skeyid is also generated. Customers Also Viewed These Support Documents, https://www.cisco.com/c/en/us/support/docs/security/flexvpn/115907-config-flexvpn-wcca-00.html. The CHILD_SA packet typically contains: Router 1 receives the response packet from Router 2 and completes activating the CHILD_SA. Windows or MAC (native or AC) client can only use Certificates or EAP. I followed the guide and created the IPSEC interface on the service side instead of VPN0, unfortunately I'm getting a IKEv2 failure: IKEv2:% Getting preshared key from profile keyring if-ipsec1-ikev2-keyringIKEv2:% Matched peer block 'if-ipsec1-ikev2-keyring-peer'IKEv2:(SESSION ID = 0,SA ID = 0):Searching Policy with fvrf 0, local address X.X.X.XIKEv2:(SESSION ID = 0,SA ID = 0):Found Policy 'policy1-global'IKEv2-ERROR:Address type 1622425149 not supported. Find answers to your questions by entering keywords or phrases in the Search bar above. Responder sends the response for IKE_AUTH. IPSEC profile: this is phase2, we will create the transform set in here. Finding Feature Information Prerequisites for Configuring Internet Key Exchange Version 2 01:52 PM Router2 sends out the responder message to Router 1. This section lists the configurations used in this document. 0 Helpful Share Reply JW_UK Beginner In response to JW_UK Options 09-28-2019 03:19 AM The Responder tunnel usually comes up before the Initiator. All traffic must be accepted and specific routing is needed to direct traffic into specific tunnels. IKEv2 Settings Policy - HQ-VPN Auth Type - Preshared Manual Key Key is set in both fields IPsec Tab: Crypto Map Type - Static IKEv2 Mode - Tunnel Transform Sets IKEv2 Proposals - SHA-256 Enable Reverse Route Injection- Checked Enable PFS - Checked Modulus Group - 19 Lifetime Duration - 28800 Lifetime Size - 4608000 Advanced Tab: If the proposal is acceptable to the responder, it sends identical TS payloads back. Can you also post the config for the VPN template. Remote Type = 0. . Any luck getting this to work? *Nov 11 19:30:34.835: IKEv2:No data to send in mode config set. Use the VPN Interface IPsec feature template to configure IPsec tunnels on Cisco IOS XE service VPNs that are being used for Internet Key Exchange (IKE) sessions. Has anyone ever created an exception list to bypass zscaler in certain situations and go out the DIA door instead? In IKEv1 there was a clearly demarcated phase1 exchange that consisted of six (6) packets followed by a phase 2 exchange that consisted of three (3) packets; the IKEv2 exchange is variable. Initiator starts IKE_AUTH exchange and generates the authentication payload. Template applied to Service VPN 1, Source interface from VPN 0 (Internet Interface with public IP to reach external Firewall via Internet).
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