This is not a bug, even though the behavior is described in Cisco bug IDCSCug67056. 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. All traffic must be accepted and specific routing is needed to direct traffic into specific tunnels. You cannot configure IKEv2 through the user interface. Initiator receives response from Responder. With IKEv1, you see a different behavior, because Child SA creation happens during Quick Mode, and the CREATE_CHILD_SA message has a provision to carry the Key Exchange payload that specifies the DH parameters to derive a new shared secret. Communication over the IPSec Tunnel should be done via VPN1. *Nov 11 19:30:34.835: IKEv2:No data to send in mode config set. Same here. *Nov 11 19:30:34.841: IKEv2:Adding ident handle 0x80000002 associated with SPI 0x9506D414 for session 8 *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_OK_RECD_LOAD_IPSEC *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):Action: Action_Null *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_START_ACCT *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):Accounting not required *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000001 CurState: AUTH_DONE Event: EV_CHECK_DUPE *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000001 CurState:AUTH_DONEEvent: EV_CHK4_ROLE, *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000001 CurState:READYEvent: EV_CHK_IKE_ONLY *Nov 11 19:30:34.841: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (I) MsgID = 00000001 CurState: READY Event: EV_I_OK, *Nov 11 19:30:34.840: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000001 CurState:READYEvent: EV_R_OK *Nov 11 19:30:34.840: IKEv2:(SA ID = 1):SM Trace-> SA: I_SPI=F074D8BBD5A59F0B R_SPI=F94020DD8CB4B9C4 (R) MsgID = 00000001 CurState: READY Event: EV_NO_EVENT. Router 2 builds the responder message for IKE_SA_INIT exchange, which is received by ASA1. Zscaler support IP-SLA HTTP probes to check the cloud proxy health, on traditional routers you are able to use 'track' features to, for example, change the admin distance of a static route based on the results of the IP-SLA test. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. I had the same Firebox and RADIUS server working for IPSec MUVPN, but not for IKEv2. This is the CREATE_CHILD_SA request. The Responder tunnel usually comes up before the Initiator. I think i have the problem with the Source Interface (i receive"IKEv2-ERROR:Address type not supported" in log). You can use IKEv2 as a virtual private network (VPN) tunneling protocol that supports automatic VPN reconnection. Uses certificates for the authentication mechanism. You can also check the output of theshow crypto sessioncommand on both routers; this output shows the tunnel session status as UP-ACTIVE. Transport side Ike based IPsec is not available in cedge. Source Interface in my setup is the WAN Interface connected to the Internet. If it guesses wrong, the CREATE_CHILD_SA exchange fails, and it will have to retry with a different KEi. In the IKEv1 Phase 1 settings, you can select one of these modes: Main Mode. Update: This was a version error, using wrong version of anyconnect, this has now been resolved. The CLI based workaround for it (on cEdge). The packet exchange in IKEv2 is radically different from packet exchange in IKEv1. A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent IKEv2 from establishing new security associations. I shared this with TAC too. If your network is live, make sure that you understand the potential impact of any command. This is the CREATE_CHILD_SA response. N(Notify payload-optional). 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. For more information, refer toIKEv2 Packet Exchange and Protocol Level Debugging. The vulnerability is due to incorrect handling of crafted IKEv2 SA-Init packets. Windows or MAC (native or AC) client can only use Certificates or EAP. Find answers to your questions by entering keywords or phrases in the Search bar above. The documentation set for this product strives to use bias-free language. 189067: *Aug 8 14:01:22.433 Chicago: IKEv2:Config data recieved: 189068: *Aug 8 14:01:22.433 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Config-type: Config-request, 189069: *Aug 8 14:01:22.433 Chicago: IKEv2:IKEv2 responder - unsupported attrib unknown in cfg-req, 189070: *Aug 8 14:01:22.433 Chicago: IKEv2:IKEv2 responder - unsupported attrib unknown in cfg-req, 189071: *Aug 8 14:01:22.433 Chicago: IKEv2:IKEv2 responder - unsupported attrib unknown in cfg-req, 189072: *Aug 8 14:01:22.433 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Error in settig received config mode data, 189073: *Aug 8 14:01:22.433 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Auth exchange failed, 189074: *Aug 8 14:01:22.433 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):: Auth exchange failed, 189075: *Aug 8 14:01:22.433 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Abort exchange, 189076: *Aug 8 14:01:22.433 Chicago: IKEv2:(SESSION ID = 8673,SA ID = 1):Deleting SA, 189077: *Aug 8 14:01:25.429 Chicago: IKEv2:Couldn't find matching SA: Detected an invalid IKE SPI, 189078: *Aug 8 14:01:25.429 Chicago: IKEv2:(SESSION ID = 0,SA ID = 0):Received Packet [From 2.2.2.2:4500/To 1.1.1.1:4500/VRF i0:f0], 189079: *Aug 8 14:01:25.429 Chicago: IKEv2:: A supplied parameter is incorrect, 189080: *Aug 8 14:01:28.429 Chicago: IKEv2:Couldn't find matching SA: Detected an invalid IKE SPI, 189081: *Aug 8 14:01:28.429 Chicago: IKEv2:(SESSION ID = 0,SA ID = 0):Received Packet [From 2.2.2.2:4500/To 1.1.1.1:4500/VRF i0:f0], 189082: *Aug 8 14:01:28.429 Chicago: IKEv2:: A supplied parameter is incorrect, 189083: *Aug 8 14:01:31.433 Chicago: IKEv2:Couldn't find matching SA: Detected an invalid IKE SPI, 189084: *Aug 8 14:01:31.433 Chicago: IKEv2:(SESSION ID = 0,SA ID = 0):Received Packet [From 2.2.2.2:4500/To 1.1.1.1:4500/VRF i0:f0], 189085: *Aug 8 14:01:31.433 Chicago: IKEv2:: A supplied parameter is incorrect. Local Type = 0. Cisco recommends that you have knowledge of the packet exchange for IKEv2. "You can create the IPsec tunnel in the transport VPN (VPN 0) and in any service VPN (VPN 1 through 65530, except for 512). 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.