Creare il profilo IKEv2 : crypto ikev2 profile FlexVPN- IKEv2 -Profile-1 match identity remote key-id example.com identity local dn. This document also provides information on how to translate certain debug lines in an ASA configuration. The Cisco IOS router configuration Cisco IOS router IKEv2 debug logs Zipfile of the complete C:\Windows\tracing directory. Peer 40.10.1.1:500 Id: 40.10.1.1, Crypto logging ezvpn, introduced in 12.4(4)T, displays EasyVPN connection messages, %CRYPTO-5-SESSION_STATUS: Crypto tunnel is DOWN. I know how to troubleshoot on both the router and the PaloAlto side. We can use crypto conditional debugging when we are troubleshooting live networks and specially where there are multiple tunnels running on the device. IPSEC is a combination of three primary protocols ESP(protocol 50), AH(protocol 51) and IKE(UDP 500), Authentication: Authentication Header (AH) and Encapsulating Security Payload (ESP), Integrity: Encapsulating Security Payload (ESP), Confidentiality: Encapsulating Security Payload (ESP), Bringing it all together: Internet key Exchange (IKE). Conditional debug is very useful to filter out some of the debug information that you see on a (busy) router. IKEv2:% Getting pre-shared key from profile keyring IKEv2_KEYRING IKEv2:% key not found. Local Address = 0.0.0.0. Prerequisites Requirements There are no specific requirements for this document. Cisco TAC support is not very helpful. In other words do they all have to match for it to work with multiple conditions? Getting past intermittent/unexplained 802.1x problems on Windows 7, Insights About Multiple Vulnerabilities in Cisco Discovery Protocol Implementations (CDPwn). Crypto logging session, introduced in 12.3(14)T, displays tunnel up/down messages: %CRYPTO-5-SESSION_STATUS: Crypto tunnel is UP. The . %CRYPTO-5-SESSION_STATUS: Crypto tunnel is DOWN. R1 (config-ikev2-profile)#lifetime 3600 R1 (config-ikev2-profile)#dpd 10 5 on-demand And this completes the IKEv2 configurtaion. . Known Affected Release. ].4q{L7.t.h.5..ee 11 aa 38 79 73 75 ed eb 6e 66 1a e7 bc 0d 78 | 8ysu..nf.x2b 00 00 44 a4 b2 d5 54 84 5c 15 20 c1 44 34 25 | +..DT.\. Use these resources to familiarize yourself with the community: Site-2-Site IKEv2 VPN between Cisco IOS router and PaloAlto firewall, Customers Also Viewed These Support Documents. Find answers to your questions by entering keywords or phrases in the Search bar above. Have any question put it on comment section. As part of the "debug crypto ike-common 254" output the following can be seen: Nov 15 13:38:34 [IKE COMMON DEBUG]IKEv2 Doesn't support Multiple Peers Conditions: The crypto map entry for the affected tunnel has multiple peer ip addresses. Prerequisites Requirements Cisco recommends that you have knowledge of these topics: Internet Key Exchange version 2 (IKEv2) Remote Address = 0.0.0.0. Whatever IP address I try in debug condition ipnothing shows up Im guessing that this command doesnt work for most debug commands. Correlation Peer Index = 0. IKEv2 is the supporting protocol for IP Security Protocol (IPsec) and is used for performing mutual authentication and establishing and maintaining security associations (SAs). .."..,00 00 00 28 04 01 00 04 03 00 00 08 01 00 00 03 | (03 00 00 08 02 00 00 02 03 00 00 08 03 00 00 02 | .00 00 00 08 04 00 00 02 28 00 00 88 00 02 00 00 | ..(.49 54 26 18 c2 10 24 35 c6 02 11 65 0e 47 e6 2b | IT&$5e.G.+f7 ef 9b fb 3f 06 39 35 63 85 62 e0 d1 c8 51 dd | .?.95c.bQ.bc f3 4c 00 ca 30 3c 34 e8 12 94 f7 e3 60 f2 42 | ..L..0<4..`.B1d aa 57 bc 05 fe 66 56 a7 ab 51 82 53 06 ab f3 | ..WfV..Q.S14 de ad 7a 74 ba 7b 65 0d eb 33 13 6f 12 dc f9 | zt. 07:13 AM That was on 15.7(3)M3 on my lab, however, I remember always seeing that option on hardware as well. To show IKE and IPSec information together : These are the current IKE/IPSec debugs available; the highlighted ones are the most useful typically, Make sure to use Crypto Conditional Debugs when trying to troubleshoot production routers, The router will perform conditional debugging only after at least one of the global crypto debug commands, debug crypto condition . Local Type = 0. IKEv2 Authentication The Cisco CG-OS router employs IKEv2 to authenticate to the destination router by using either a pre-shared key (PSK) or by using RSA signatures with a Public Key Infrastructure (PKI). Can you check phase 2 and no-nat configuration? I'm trying to get an IPSec/ IKEv2 setup working, which was implement following this I don't understand why, but when a client connects (StrongSwan on Android here), the session is closed because the server cannot authenticate itself using the RSA key (see the logs), although the key was successfully imported.. Any help or pointer greatly appreciated :) Some extra info: sh run:. If you like this video give it a thumps up and subscribe my channel for more video. Use these resources to familiarize yourself with the community: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. 10-30-2020 Creare i criteri di autorizzazione ikev2 : crypto ikev2 authorization policy FlexVPN- Local - Policy -1 pool FlexVPN-Pool-1 dns 10.48.30.104 netmask 255.255.255. Description (partial) Symptom: With the following debugs enabled the IOS-XE router displays an incorrect value for the destination port the IKE_AUTH Request packet was received. When configuring the tunnel-group for a IKEV2 connection on a Cisco ASA, you need to specify a local and remote pre-shared key and these need to match on both sides. Heres an example: I just tried this on some IOS 15 routers but Im having the same issue as you. ;.&=.62 0d 49 db 4a 60 56 6c b9 56 d1 bf 3c 7e 31 bc | b.I.J`Vl.V..<~1.23 d3 fd fb 13 7e a8 f2 cb 2f 0d e9 c6 f3 4e 96 | #.~/.N.63 94 8b b9 2b 00 00 17 43 49 53 43 4f 2d 44 45 | c+CISCO-DE4c 45 54 45 2d 52 45 41 53 4f 4e 29 00 00 3b 43 | LETE-REASON)..;C49 53 43 4f 28 43 4f 50 59 52 49 47 48 54 29 26 | ISCO(COPYRIGHT)&43 6f 70 79 72 69 67 68 74 20 28 63 29 20 32 30 | Copyright (c) 2030 39 20 43 69 73 63 6f 20 53 79 73 74 65 6d 73 | 09 Cisco Systems2c 20 49 6e 63 2e 29 00 00 1c 01 00 40 04 f3 e1 | , Inc.)..@e9 e3 f5 f0 68 7e 91 67 b0 89 28 28 5d a2 d9 d2 | .h~.g..((]d9 c1 29 00 00 1c 01 00 40 05 ea 70 9e e6 f6 f6 | ..)..@..p.6a e8 e3 83 ff 09 65 b3 3c 04 5e cb 85 fe 2b 00 | j..e.<.^+.00 08 00 00 40 2e 00 00 00 14 40 48 b7 d5 6e bc | .@..@H..n.e8 85 25 e7 de 7f 00 d6 c2 d3 | ..%...IKEv2-PLAT-3: RECV PKT [IKE_SA_INIT] [62.193.73.40]:500->[41.65.204.228]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0xe0729c1c98ebd8a6 MID=00000000IKEv2-PLAT-2: Process custom VID payloadsIKEv2-PLAT-2: Cisco Copyright VID received from peerIKEv2-PLAT-2: (110): my auth method set to: 2IKEv2-PLAT-2: Build config mode reply: no request storedIKEv2-PLAT-2: (110): Encrypt success status returned via ipc 1IKEv2-PLAT-3: (110): SENT PKT [IKE_AUTH] [41.65.204.228]:500->[62.193.73.40]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0xe0729c1c98ebd8a6 MID=00000001, IKEv2 Recv RAW packet dump78 4a 9a 93 30 d6 e2 f6 e0 72 9c 1c 98 eb d8 a6 | xJ..0.r2e 20 23 20 00 00 00 01 00 00 00 7c 2b 00 00 60 | . Its best to demonstrate this with an example, so let me show you the following router that is running RIP on two interfaces: Lets enable RIP debugging on this router: We will see RIP debug information from both interfaces: If I only want to see the debug information from one interface then I can use a debug condition: This is quite a list with different items to choose from. Configure IKEv2 Site to Site VPN in Cisco ASA. Reason: 8IKEv2-PLAT-2: (110): session manager killed ikev2 tunnel. 11:28 AM, What you have does NOT apply in my situation because I have ONLY 1 VPN termination on that Cisco router with the Paloalto VPN and nothing else. But thank you. If you've already registered, sign in. On Palo Alto repeat those debug commands replacing on with off. 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. However, I have yet to perform a successful conditional debug with ip. # .|+..`7a 56 9b cd 22 6d 43 86 85 82 db 7e 12 f0 4e 25 | zV.."mC.~..N%b4 fb 05 0a c0 15 ad 25 21 04 ae 9e 32 fc d9 0e | .%!21a 77 c4 75 e3 6b 2a cc 31 af 1f 4f 1e 8f 4c a8 | .w.u.k*.1..O..L.56 0d 35 63 60 df 16 bf 80 b4 85 25 a9 a9 af b5 | V.5c`%.d7 2f c8 c6 72 e9 e1 40 1d 80 b7 48 61 63 88 a2 | ./..r..@Hac..cb 66 55 99 16 e9 ca 6a 64 a3 0b 5a | .fU.jd..ZIKEv2-PLAT-3: RECV PKT [IKE_AUTH] [62.193.73.40]:500->[41.65.204.228]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0xe0729c1c98ebd8a6 MID=00000001IKEv2-PLAT-2: (110): Decrypt success status returned via ipc 1IKEv2-PLAT-2: (110): peer auth method set to: 2IKEv2-PLAT-2: (110): Site to Site connection detectedIKEv2-PLAT-2: connection initiated with tunnel group 62.193.73.40IKEv2-PLAT-2: my_auth_method = 2IKEv2-PLAT-2: supported_peers_auth_method = 2IKEv2-PLAT-2: (110): P1 ID = 0IKEv2-PLAT-2: (110): Translating IKE_ID_AUTO to = 255IKEv2-PLAT-2: (110): Completed authentication for connectionIKEv2-PLAT-5: New ikev2 sa request activatedIKEv2-PLAT-5: Decrement count for outgoing negotiatingIKEv2-PLAT-2:CONNECTION STATUS: UP peer: 62.193.73.40:500, phase1_id: 62.193.73.40IKEv2-PLAT-2: (110): connection auth hdl set to 600IKEv2-PLAT-2: (110): AAA conn attribute retrieval successfully queued for register session request.IKEv2-PLAT-2: (110): idle timeout set to: 30IKEv2-PLAT-2: (110): session timeout set to: 0IKEv2-PLAT-2: (110): group policy set to 62.193.73.40IKEv2-PLAT-2: (110): class attr setIKEv2-PLAT-2: (110): tunnel protocol set to: 0x40IKEv2-PLAT-2: (110): IPv4 filter ID not configured for connectionIKEv2-PLAT-2: (110): group lock set to: noneIKEv2-PLAT-2: (110): IPv6 filter ID not configured for connectionIKEv2-PLAT-2: (110): connection attribues set valid to TRUEIKEv2-PLAT-2: (110): Successfully retrieved conn attrsIKEv2-PLAT-2: (110): Session registration after conn attr retrieval PASSED, No errorIKEv2-PLAT-2: (110): connection auth hdl set to -1IKEv2-PLAT-2:CONNECTION STATUS: REGISTERED peer: 62.193.73.40:500, phase1_id: 62.193.73.40IKEv2-PLAT-2: mib_index set to: 501IKEv2-PLAT-1: Failed to remove peer correlation entry from cikePeerCorrTable. Yes, I am very well aware of the DMVPN because I had to do that in my CCIE lab many years ago and passed. % .D*..(1d 80 b7 48 61 63 88 a2 78 d6 13 44 b7 91 9d 4a | Hac..x..DJ59 97 c0 0d 9d 7b 34 a3 4f 06 ac 63 2b 2b cf ed | Y.{4.O..c++..81 83 69 d0 | ..i.IKEv2-PLAT-3: RECV PKT [INFORMATIONAL] [62.193.73.40]:500->[41.65.204.228]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0xe0729c1c98ebd8a6 MID=00000002IKEv2-PLAT-2: (110): Decrypt success status returned via ipc 1IKEv2-PLAT-2:CONNECTION STATUS: DOWN peer: 62.193.73.40:500, phase1_id: 62.193.73.40IKEv2-PLAT-2: (110): IKEv2 session deregistered from session manager. IPSEC Tunnel Index = 0.IKEv2-PLAT-1: Failed to remove peer correlation entry from cikePeerCorrTable. IKEv2 must be configured on the source and destination router (peers) and both routers must employ the same authentication method. However the Palo Alto appears to give just pre-shared key box So my assumption would be that on the Cisco you would make the local and remote ikev2 PSK's exactly the same. crypto ikev2 proposal default encryption aes-cbc-256 aes-cbc-192 aes-cbc-128 integrity sha512 sha384 sha256 sha1 md5 group 5 2 ! Please share the VPN "debug commands" which can be used for troubleshooting, with out impacting much on ASA processing utilization as ASA is in production. Remote Type = 0. Remote Address = 0.0.0.0. The Cisco TAC engineer kept fighting with me on this until I showed him that there is NO "local". Local Address = 0.0.0.0. IKEv2:Failed to initiate sa Conditions: Key cannot be found in the keyring debug . Last Modified. This document describes Internet Key Exchange version 2 (IKEv2) debugs on Cisco IOS when a pre-shared key (PSK) is used. Look more like a bug with Cisco IOS to me, unless I upgrade to 16.x which I can not because platform 2921 does not run 16.x. With the debug condition there are multiple options that can be used such as interface (as you highlighted) ip address, mac address, etc When you have multiple debug conditions configured is it a logical and or or? Questo scambio costituito da una singola coppia richiesta/risposta ed stato definito come scambio di fase 2 in IKEv1. IPSEC is implemented in the following five stages: Decision to use IPSEC between two end points across internet, Configuration of the two gateways between the end points to support IPSEC, Initiation of an IPSEC tunnel between the two gateways due to interesting traffic, Negotiation of IPSEC/IKE parameters between the two gateways, If not, verify Routing (static or RRI), If not, verify for matching Pre-shared keys, Verify that the IKE policies (encr, auth, DH) are matching, Verify for matching IKE Identities, If not, verify for matching IPSec transform sets, Verify for mirrored crypto ACLs on each side, Verify that the Crypto Map is applied on the right interface, show crypto isakmp sa [detail], show crypto isakmp peer , show crypto ipsec sa [ address | detail | interface | map | per | vrf ], show crypto session [ fvrf | group | ivrf ] username | detail ], show crypto engine connection active. I am facing issue with ASA VPN tunnel (ikev2) which is not coming up. Correlation Peer Index = 0. DMVPN is a cisco "only" solution and has nothing to do with my situation here. Peer 2.2.2.2:500 f_vrf: FVRF1 Id: cisco, %CRYPTO-6-EZVPN_CONNECTION_DOWN: (Server) Mode=NEM Client_type=CISCO_IOS User= Group=cisco Client_public_addr=2.2.2.2 Server_public_addr=1.1.1.2 f_vrf=FVRF1, %CRYPTO-5-SESSION_STATUS: Crypto tunnel is UP . debug crypto condition , debug crypto { isakmp | ipsec | engine }, show crypto debug-condition [ all | peer | fvrf | ivrf | isakmp | username | connid | spi ], The name string of a virtual private network (VPN) routing and forwarding (VRF) instance; relevant debug messages will be shown if the current IPSec operation uses this VRF instance as its front-door VRF (FVRF), The name string of a VRF instance; relevant debug messages will be shown if the current IPSec operation uses this VRF instance as its inside VRF (IVRF), The name string of the isakmp profile to be matched against for debugging, The ip address string of the local IKE endpoint, A ezvpn group name string; relevant debug messages will be shown if the peer is using this group name as its identity, A single IP address; relevant debug messages will be shown if the current IPSec operation is related to the IP address of this peer, A subnet and a subnet mask that specify a range of peer IP addresses; relevant debug messages will be shown if the IP address of the current IPSec peer falls into the specified subnet range, A fully qualified domain name (FQDN) string; relevant debug messages will be shown if the peer is using this string as its identity, The username string (XAuth username or PKI-aaa username obtained from a certificate), Two crypto logging enhancements were introduced in recent Cisco IOS images, ezvpn ezvpn logging enable/disable, session logging up/down session. Its not like it will now match on traffic that enters fa0/0 and exits fa0/1 (or vice versa). Please watch below video before watching thisSite to Site Ikev2 asymmetric Pre Shared key explainnation with wiresharkhttps://youtu.be/lheMAmlmoP4Site to Site VPN with Certificate - Wireshark Capturehttps://youtu.be/BthdhJQzq9cSteps to Configure Ikev2 Site to Site VPNDefine proposalcrypto ikev2 proposal VPN_PRO encryption 3des integrity sha256 group 2Put that proposal into policycrypto ikev2 policy 10 proposal VPN_PRO !Define profile for authentication methodcrypto ikev2 profile PROFILE match identity remote address 200.1.2.10 255.255.255.0 authentication remote rsa-sign authentication local rsa-sigpki truspoint (truspoint name)access-list 101 permit ip x.x.x.x x.x.x.x x.x.x.x x.x.x.xDefine transform setcrypto ipsec transform-set TSET esp-3des esp-md5-hmac mode tunnelDefine crypto mapcrypto map CMAP 10 ipsec-isakmp set peer 200.1.2.10 set ikev2-profile PROFILE match address 101 reverse-route staticApply this map to interfaceint g0/0crypto map CMAP#Ikev2 #VPN #bikashtech-~-~~-~~~-~~-~-Please watch: \"Palo Alto Firewall Basic Configuration | Zone | Security Policy | NAT | Virtual Router\" https://www.youtube.com/watch?v=qXtP-POXIQE-~-~~-~~~-~~-~- ciscoasa (config)# debug http debug http enabled at level 1. Correlation Peer Index = 0. The debug condition command is pretty simple, it doesnt work with and/or operators. The Cisco CG-OS router employs IKEv2 to authenticate to the destination router by using either a pre-shared key (PSK) or by using RSA signatures with a Public Key Infrastructure (PKI). @Aref Alsouqi: Are you working for Cisco, LOL? Local Type = 0. If you like this video give it a thumps up and subscrib. This module describes the Internet Key Exchange Version 2 (IKEv2) protocol. Passaggio 4. The configuration is below: crypto ikev2 proposal PaloAlto The TAC guy who help me is not very good with VPN. and one captured during the IPsec initialization: Finding Feature Information Prerequisites for Configuring Internet Key Exchange Version 2 Local Address = 0.0.0.0. This process uses the fast exchange mode (3 ISAKMP messages) to complete the negotiation. ASA IKEv2 Debugs for Site-to-Site VPN with PSKs TechNote ASA IPsec and IKE debugs (IKEv1 Main Mode) Troubleshooting TechNote IOS IPSec and IKE debugs - IKEv1 Main Mode Troubleshooting TechNote ASA IPSec and IKE debugs - IKEv1 Aggressive Mode TechNote Cisco ASA 5500 Series Adaptive Security Appliances Debugs on Router Introduction This document describes how to set up a site-to-site Internet Key Exchange version 2 (IKEv2) tunnel between a Cisco Adaptive Security Appliance (ASA) and a router that runs Cisco IOS software. debug crypto ipsec This command shows the source and destination of IPsec tunnel endpoints. IKEv2 is a new design protocol doing the same objective of IKEv1 which protect user traffic using IPSec.IKEv2 provides a number of benefits over IKEv1, such as IKEV2 uses less bandwidth and supports EAP authentication where IKEv1 does not.IKEv2 support three authentication methods : 1. Correlation Peer Index = 0. Platform is Cisco 2921 running version c2900-universalk9-mz.SPA.151-4.M10.bin. Two sa created messages appear with one in each direction. It could have saved me a lot of times. what do you see in output fromsh crypto isakmp sa? You must be a registered user to add a comment. IKEv1 phase 2 negotiation aims to set up the IPSec SA for data transmission. Conditional Debug on Cisco IOS Router. debug crypto ikev2 internal. Find answers to your questions by entering keywords or phrases in the Search bar above. To enable debugging, use the debug http command. IPSEC Tunnel Index = 0.IKEv2-PLAT-2: Received PFKEY delete SA for SPI 0x57451BD6 error FALSEIKEv2-PLAT-2: Received PFKEY delete SA for SPI 0x6FEDE4D2 error FALSEIKEv2-PLAT-2: Received PFKEY delete SA for SPI 0x8E78B423 error FALSEIKEv2-PLAT-2: Received PFKEY delete SA for SPI 0xEF4948F4 error FALSEIKEv2-PLAT-2: (110): Encrypt success status returned via ipc 1IKEv2-PLAT-3: (110): SENT PKT [INFORMATIONAL] [41.65.204.228]:500->[62.193.73.40]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0xe0729c1c98ebd8a6 MID=00000002, IKEv2 Recv RAW packet dump78 4a 9a 93 30 d6 e2 f6 e0 72 9c 1c 98 eb d8 a6 | xJ..0.r2e 20 25 20 00 00 00 02 00 00 00 44 2a 00 00 28 | . Topology simulates a Branch router connected over an ISP to the HQ router. 0. . The TAC engineer from Cisco was pretty much useless. a transform-set is a set of protocols and algorithms specified to secure data in IPsec tunnel. Local Type = 0. Find answers to your questions by entering keywords or phrases in the Search bar above. Crypto logging ezvpn, introduced in 12.4(4)T, displays EasyVPN connection messages, %CRYPTO-6-EZVPN_CONNECTION_DOWN: (Server), Customers Also Viewed These Support Documents. Local Type = 0. The router will perform conditional debugging only after at least one of the global crypto debug commandsdebug crypto isakmp, debug crypto ipsec, or debug crypto enginehas been enabled; thi s requirement helps to ensure that the performance of the router will not be impacted when conditional debugging is not being used The following is what a typical ASDM session establishment looks like in the debug output: The management workstation at 11.11.11.2 opens a web browser to https://11.11.11.1 which is the Cisco ASA's outside interface.. This document describes how to understand debugs on the Cisco Adaptive Security Appliance (ASA) when Internet Key Exchange Version 2 (IKEv2) is used with a Cisco AnyConnect Secure Mobility Client. Components Used This document is not restricted to specific software and hardware versions. To view crypto condition debugs that have been enabled: show crypto debug-condition [ all | peer | fvrf | ivrf | isakmp | username | connid | spi ]. VPN will use IKEv2 protocol with PreSharedKey (PSK) remote-site authentication. IPSec IKEv2 VPN Configuration for Cisco ASA and Palo Alto Firewall Michael Keenan 56 subscribers Subscribe 48 Share 4.6K views 3 years ago In this video I demonstrate how to configure an IPSec. This is interesting, I tried it on my lab and I got the local option: Regarding the troubleshooting, I would rely on debugs on both ends and try to parse any error that would help suggesting what the root cause is. Remote Address = 0.0.0.0. This is the wrong policy, it should be '127' but the fvrf is 0, and the local address will always be 192.168.1.2, this is because the ASA address attached to the router is where the incoming connection for the vpn is PASSING THROUGH, not coming from. 11-04-2020 IPsec configuration Create a transform-set. Local Address = 0.0.0.0. Remote Type = 0. Src_proxy and dest_proxy are the client subnets. . Here we go: The configuration is very straight forward, nothing mystery about it. IKEv2 must be configured on the source and destination router (peers) and both routers must employ the same authentication method. Peer 2.2.2.2:500 f_vrf: FVRF1 Id: cisco, %CRYPTO-6-EZVPN_CONNECTION_UP: (Server) Mode=NEM Client_type=CISCO_IOS User= Group=cisco Client_public_addr=2.2.2.2 Server_public_addr=1.1.1.2 f_vrf=FVRF1, I am thinking of coming up with few known issues or scenarios in my next blog, hence looking forward to your inputs and feedbacks. Cisco Bug: CSCvh21817 - IKEv2 - Improve debugging when matching incorrect profile. I don't see any issue with your router configuration that would prevent the tunnel from working. It allows us to only show debug information that matches a certain interface, MAC address, username and some other items. Reason: Internal ErrorIKEv2-PLAT-2: (110): PSH cleanupIKEv2-PLAT-5: Active ike sa request deletedIKEv2-PLAT-5: Decrement count for outgoing active, CONNECTION STATUS: UP peer: 62.193.73.40:500, phase1_id: 62.193.73.40, CONNECTION STATUS: REGISTERED peer: 62.193.73.40:500, phase1_id: 62.193.73.40. Ill use the interface as a condition: Using this debug condition we will only see RIP debug information from the FastEthernet 0/0 interface: When you want to get rid of the debug condition then you can use the following command: If you like to keep on reading, Become a Member Now! This output shows an example of the debug crypto ipsec command. Here is why: Hi. Products (1) Cisco Integrated Services Virtual Router. AnyConnect Certificate Based Authentication. Conditions: Router configured with ikev2 and a valid ipsec transform-set, receiving an IKE_AUTH REQ from a peer "Debug crypto ikev2 error" enabled Related Community Discussions View Bug Details in Bug Search Tool Why Is Login Required? Products & Services; Support; How to Buy; Training & Events; Partners; Cisco Bug: CSCvh21817 . I have been able to get conditional debug to work with interface. IPSec stands for IP Security and the standard definition of IPSEC is--, A security protocol in the network layer will be developed to provide cryptographic security services that will flexibly support combinations of authentication, integrity, access control, and confidentiality (IETF). Remote Type = 0. - edited Edited by RedShift11 Sunday, January 22, 2017 8:47 PM; Tuesday, January 17, 2017 8:08 PM. IKEv2 packet debug shows incorrect port value for IKE_AUTH Request packet . https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/119425-configure-ipsec-00.html, Especially about router vs asa local address. It works more like access-list statements, if it matchesthe debug info will show up, if it doesnt match then you dont see it. Pu essere avviato da una delle estremit di IKE_SA dopo il completamento degli scambi iniziali. The thing is that if I replace the Cisco IOS router with an ASA device with the same EXACT configurationi, VPN IKEv2 will work fine between ASA and PaloAlto so I know the configuration on the PaloAlto is good. - edited Prerequisites Requirements Cisco recommends that you have knowledge of the packet exchange for IKEv2. . On the router use the command debug crypto ikev2, and on the Palo Alto use: debug ike gateway on, debug ike tunnel on. The output will let you know that Quick Mode is starting. Clear the tunnel and watch the debugs on both ends, hopefully you will see what is wrong and trying to fix it. Platform is Cisco 2921 running version c2900-universalk9-mz.SPA.151-4.M10.bin. IKEv2 Compared with IKEv1, IKEv2 simplifies the SA negotiation process. Many thanks. It's best to demonstrate this with an example, so let me show you the . I don't even have AAA enable on the router: c2921(config)#crypto ikev2 profile PaloAltoc2921(config-ikev2-profile)#keyring ?WORD Keyring nameaaa AAA based pre-shared keys. The spoke is nearly identical; It's just missing the fvrf and ivrf commands. The thing is that if I replace the Cisco IOS router with an ASA device with the same EXACT configurationi, VPN IKEv2 will work fine between ASA and PaloAlto so I know the configuration on the PaloAlto is good. {e..3.o31 36 48 a0 2e cb ab f5 e7 b4 e9 19 0f 0c ca 12 | 16H.e2 5d fc 34 71 7b 4c 37 bb 74 0f 68 e6 35 14 b9 | . It is a standard for privacy, integrity and authenticity. 0 def-domain example.com. Crypto logging session, introduced in 12.3(14)T, displays tunnel up/down messages: %CRYPTO-5-SESSION_STATUS: Crypto tunnel is UP . I thought of sharing ipsec debugging and troubleshooting steps with everyone. In addition, this document provides information on how to translate certain debug lines in a configuration. Has anyone here successfully get Site-2-Site VPN between a Cisco IOS router and PaloAlto working with IKEv2? Phase 1 has now completed and Phase 2 will begin. Use these resources to familiarize yourself with the community: Customers Also Viewed These Support Documents. Hi Friends, Please checkout my new video on Site to Site ikev2 VPN with certificate between routers . As a matter of fact, I had both PaloAlto and Cisco on the phone at the same time, PaloAlto blamed the issue on the Cisco side and vice versa. IPSEC Tunnel Index = 0.IKEv2-PLAT-1: Failed to remove peer correlation entry from cikePeerCorrTable. crypto ikev2 profile PaloAltomatch identity remote address 1.1.1.1 255.255.255.255authentication local pre-shareauthentication remote pre-sharekeyring PaloAlto, crypto ipsec transform-set PaloAlto esp-aes 256 esp-sha-hmac!crypto map vpn 10 ipsec-isakmpset peer 1.1.1.1set transform-set PaloAltoset pfs group20set ikev2-profile PaloAltomatch address PaloAlto, permit ip host 192.168.1.1 192.168.246.0 0.0.0.255permit ip host 192.168.1.2 192.168.246.0 0.0.0.255, interface GigabitEthernet0/0ip address 4.2.2.251 255.255.255.248duplex autospeed autocrypto map vpn, Platform is Cisco 2921 running version c2900-universalk9-mz.SPA.151-4.M10.bin, 10-30-2020 Understand IPSec VPNs, including ISAKMP Phase, parameters, Transform sets, data encryption, crypto IPSec map, check VPN Tunnel crypto status This article will show how to setup and configure two Cisco routers to create a permanent secure site-to-site VPN tunnel over the Internet, using the. Peer 40.10.1.1:500 Id: 40.10.1.1, %CRYPTO-5-SESSION_STATUS: Crypto tunnel is DOWN. Cisco TAC support is not very good these days. 2 more replies! If you don't spot any issue, please share the Palo Alto sanitized screenshots of the tunnel configuration, including the IKE Crypto profile, IPSec Crypto profile, IKE Gateway, IPSec Tunnel, and virtual router and security policies related configuration. There is NO such command "keyring local PaloAlto" you mentioned? Hi Friends, Please checkout my new video on Site to Site ikev2 VPN with certificate between routers . Conditional debug is very useful to filter out some of the debug information that you see on a (busy) router. Known Affected Release. The configuration is below: crypto ikev2 proposal PaloAltoencryption aes-cbc-256integrity sha512group 20!crypto ikev2 policy PaloAltoproposal PaloAlto!crypto ikev2 keyring PaloAltopeer PaloAltoaddress 1.1.1.1pre-shared-key 123456! It allows us to only show debug information that matches a certain interface, MAC address, username and some other items. This document provides information to understand IKEv2 debugs on the Adaptive Security Appliance (ASA) when preshared key (PSKs) are used. Authentication: Authentication Header (AH) and, Confidentiality: Encapsulating Security Payload, Check for interesting traffic to initiate tunnel, check crypto ACLs for hit counts, Verify if IKE SA is up (QM_Idle) for that peer, If not, verify for matching Pre-shared keys, Verify that the IKE policies (encr, auth, DH) are matching, Verify if IPSec SAs are up (Inbound and Outbound SPIs), If not, verify for matching IPSec transform sets, Verify for mirrored crypto ACLs on each side, Verify that the Crypto Map is applied on the right interface, show crypto ipsec sa [ address | detail | interface | map | per | vrf ]. Otherwise, register and sign in. The vulnerability is due to incorrect handling of crafted IKEv2 SA-Init packets. 11:28 AM 11-04-2020 For example if you enable debug condition int fa0/0 then it will only show debug information for that interface. 11:28 AM. I unfortunately don't lol. IPSEC Tunnel Index = 0.IKEv2-PLAT-1: Failed to remove peer correlation entry from cikePeerCorrTable. Description (partial) Symptom: The following message, that should appear if the key cannot be found in the IKEv2 keyring is not shown if a debug crypto condition is enabled. Once you finish troubleshooting the issue, turn off the debugs. (Four messages appear if you perform ESP and AH.) An attacker could exploit this vulnerability by sending crafted IKEv2 SA-Init . Thanks for the debugging commands, below are the VPN logs i am getting while trying to initiate VPN traffic, <--- More --->IKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-2: attempting to find tunnel group for IP: 62.193.73.40IKEv2-PLAT-2: mapped to tunnel group 62.193.73.40 using peer IPIKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-2: my_auth_method = 2IKEv2-PLAT-2: supported_peers_auth_method = 2IKEv2-PLAT-2: P1 ID = 0IKEv2-PLAT-2: Translating IKE_ID_AUTO to = 255IKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-2: Received PFKEY SPI callback for SPI 0x57451BD6, error FALSEIKEv2-PLAT-2:IKEv2 received a requested SPI from CTM and waiting for 3 more SPIsIKEv2-PLAT-2: Received PFKEY SPI callback for SPI 0x6FEDE4D2, error FALSEIKEv2-PLAT-2:IKEv2 received a requested SPI from CTM and waiting for 2 more SPIsIKEv2-PLAT-2: Received PFKEY SPI callback for SPI 0x8E78B423, error FALSEIKEv2-PLAT-2:IKEv2 received a requested SPI from CTM and waiting for 1 more SPIsIKEv2-PLAT-2: Received PFKEY SPI callback for SPI 0xEF4948F4, error FALSEIKEv2-PLAT-2:IKEv2 received all requested SPIs from CTM to initiate tunnel.IKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-5: INVALID PSH HANDLEIKEv2-PLAT-2: tp_name set to:IKEv2-PLAT-2: tg_name set to: 62.193.73.40IKEv2-PLAT-2: tunn grp type set to: L2LIKEv2-PLAT-5: New ikev2 sa request admittedIKEv2-PLAT-5: Incrementing outgoing negotiating sa count by oneIKEv2-PLAT-3: (110): SENT PKT [IKE_SA_INIT] [41.65.204.228]:500->[62.193.73.40]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0x0000000000000000 MID=00000000, IKEv2 Recv RAW packet dump78 4a 9a 93 30 d6 e2 f6 00 00 00 00 00 00 00 00 | xJ..0..29 20 22 20 00 00 00 00 00 00 00 26 00 00 00 0a | ) " .&.01 00 00 11 00 02 | IKEv2-PLAT-3: RECV PKT [IKE_SA_INIT] [62.193.73.40]:500->[41.65.204.228]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0x0000000000000000 MID=00000000IKEv2-PLAT-3: (110): SENT PKT [IKE_SA_INIT] [41.65.204.228]:500->[62.193.73.40]:500 InitSPI=0x784a9a9330d6e2f6 RespSPI=0x0000000000000000 MID=00000000, IKEv2 Recv RAW packet dump78 4a 9a 93 30 d6 e2 f6 e0 72 9c 1c 98 eb d8 a6 | xJ..0.r21 20 22 20 00 00 00 00 00 00 01 ba 22 00 00 2c | ! " After a few weeks of back and forth with Cisco, I finally gave up, until @marce1000 showed me the bug ID. 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PaloAlso support stated that Cisco sent them the wrong data but the cisco TAC engineer had no clue. i think its to do with the match fvrf any, but im no expert on this matter. Cisco Integrated Services Virtual Router. crypto ikev2 policy default match fvrf any proposal default I am at a loss here. Could it also include traffic to the router itself? .D4%a4 87 2f ca e4 b3 4e 43 17 5f d5 3b e4 26 3d d7 | ../NC._. Much appreciated. Debug delle associazioni di sicurezza figlio. When using the ip condition could that be any IP going through the router? Being in VPN technology we explain this to many of our customers and thought of discussing it here on our support forum as well. After going back and forth with him, I essentially give up. Second on a debug that I have been working on today I get the following: The next step will be IPsec configuration. This config example shows a Site-to-Site configuration of IPsec VPN established between two Cisco routers. 15.6(1.6) Description (partial) You can see the first Quick Mode message sent from the initiator with the IPSec proposals ( crypto ipsec transform-set tset esp-aes 256 esp-sha512-hmac ). FlexServer#show crypto ikev2 session detailed IPv4 Crypto IKEv2 Session . Thank you for checking as well. This is the IKE/IPSec config I'm using on the hubs (which I copied from a website). The only thing I see on the output you posted that doesn't look right is the keyring PaloAlto command under the crypto ikev2 profile, that should read keyring local PaloAlto, but I think that is simply a typo. New here? Thanks for the debugging commands, below are the VPN logs i am getting while trying to initiate VPN traffic, <--- More --->IKEv2-PLAT-5: INVALID PSH HANDLE IKEv2-PLAT-5: INVALID PSH HANDLE IKEv2-PLAT-2: attempting to find tunnel group for IP: 62.193.73.40 IKEv2-PLAT-2: mapped to tunnel group 62.193.73.40 using peer IP All replies text/html 1/18/2017 2:51:40 AM Teemo Tang 0. New here? PSK.. "/> Remote Address = 0.0.0.0. Remote Type = 0. Thanks. IKEv2 uses two exchanges (a total of 4 messages) to create an IKE SA and a pair of IPSec SAs. New here? When you add debug condition int fa0/1 then it will also show debug information from fa0/1, thats it. debug crypto ikev2 protocol Options 4794 0 7 debug crypto ikev2 protocol Go to solution Douglas Holmes Beginner Options 10-30-2012 12:08 PM I wanted to ask if anyone has done a point to point VPN Ikev2 with other vendors like Juniper or Aruba for "Suite B"? Description (partial) Symptom: ASA fails to establish an IKEv2 Site-to-site tunnel. "show crypto ikev2 sa" is not showing any output. The peer will send back a reply with chosen proposal and the Proxy ID. I would suggest to enable crypto debug on the router, as well as on the Palo Alto firewall. Everest-16.6.1. 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You the ipsec this command doesnt work for most debug commands replacing on with off AH. a Branch connected... Branch router connected over an ISP to the router and the Proxy ID 1 has completed. Site-2-Site VPN between a Cisco `` only '' solution and has nothing to do with the community Customers. Using the IP condition could that be any IP going through the router, as well on., username and some other items do you see in output fromsh crypto sa... I would suggest to enable crypto debug on the device by RedShift11,! With him, I essentially give up hardware versions VPN tunnel ( ikev2 debugs! Two sa created messages appear if you like this video give it a thumps and. Is a set of protocols and algorithms specified to secure data in ipsec tunnel Index = 0.IKEv2-PLAT-1: to. ( 110 ): session manager killed ikev2 tunnel working with ikev2 from profile keyring IKEv2_KEYRING:! Ipsec SAs value for IKE_AUTH Request debug ikev2 cisco router pretty simple, it doesnt work with.... 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In a configuration I would suggest to enable crypto debug on the device to filter some! Use the debug crypto ipsec command secure data in ipsec tunnel Index = 0.IKEv2-PLAT-1 Failed... Aes-Cbc-192 aes-cbc-128 integrity sha512 sha384 sha256 sha1 md5 group 5 2 be configured on the source and destination of SAs. T, displays tunnel up/down messages: % CRYPTO-5-SESSION_STATUS: crypto ikev2.!