To disable NAT-T encapsulation, use the no crypto ipsec nat-transparency udp-encapsulation command. Example Configuring the Proposal This section contains the following examples:.
Example IKEv2 Proposal with One Transform for Each Transform Type This example shows how to configure an IKEv2 proposal with one transform for each transform type: crypto ikev2 proposal proposal-1 encryption 3des integrity sha group 2. Example IKEv2 Proposal with Multiple Transforms for Each Transform Type This example shows how to configure an IKEv2 proposal with multiple transforms for each transform type: crypto ikev2 proposal proposal-2 encryption 3des aes-cbc integrity sha md5 group 2 5 The IKEv2 proposal proposal-2 shown translates to the following prioritized list of transform combinations: 3des, sha, 2 3des, sha, 5 3des, md5, 2 3des, md5, 5 aes-cbc, sha, 2 aes-cbc, sha, 5 aes-cbc, md5, 2 aes-cbc, md5, 5.
The proposal on the initiator is as follows: crypto ikev2 proposal proposal-1 encryption 3des aes-cbc integrity sha md5 group 2 5 The proposal on the responder is as follows: crypto ikev2 proposal proposal-2 encryption aes-cbc 3des peer integrity md5 sha group 5 2 The selected proposal will be as follows: encryption 3des integrity sha group 2 In the proposal shown above, the initiator and responder have conflicting preferences.
Example Configuring the Policy This section contains the following examples:. If there are multiple possible policy matches, the best match is used, as shown in the following example: crypto ikev2 policy policy1 match fvrf fvrf1 crypto ikev2 policy policy2 match fvrf fvff1 match local address Example IKEv2 Keyring with Multiple Peer Subblocks The following example shows how to configure an IKEv2 keyring with multiple peer subblocks: crypto ikev2 keyring keyring-1 peer peer1 description peer1 address Example IKEv2 Keyring with Symmetric Preshared Keys Based on an Identity The following example shows how to configure an IKEv2 keyring with symmetric preshared keys based on an identity: crypto ikev2 keyring keyring-4 peer abc description example domain identity fqdn example.
Example IKEv2 Keyring with a Wildcard Key The following example shows how to configure an IKEv2 keyring with a wildcard key: crypto ikev2 keyring keyring-1 peer cisco description example domain address 0.
Example How a Keyring is Matched The following example shows how a keyring is matched: crypto ikev2 keyring keyring-1 peer cisco description example. Example Configuring the Profile This section contains the following:. Example IKEv2 Profile Catering to Two Peers The following example shows how to configure an IKEv2 profile catering to two peers that use different authentication methods: crypto ikev2 profile profile2 match identity remote email user1 example.
The initiator configuration is as follows: crypto ikev2 proposal prop-1 encryption 3des integrity md5 group 2! The responder configuration is as follows: crypto ikev2 proposal prop-1 encryption 3des integrity md5 group 2! Keep this same for all IKEv2 spokes for clarity ip nhrp nhs 2. Additional References. Standards Standard Title None Technical Assistance Description Link The Cisco Support and Documentation website provides online resources to download documentation, software, and tools.
Feature Information for Internet Key Exchange Version 2 The following table provides release information about the feature or features described in this module. The following sections provide information about this feature: The following commands were introduced or modified: authentication , group , identity IKEv2 profile , integrity , match IKEv2 profile. The following sections provide information about this feature: The following commands were introduced or modified: aaa accounting IKEv2 profile , aaa authentication IKEv2 profile , aaa authorization IKEv2 profile , authentication IKEv2 profile , crypto ikev2 client configuration group , crypto ikev2 fragmentation , crypto ikev2 name mangler , dhcp , dn , dns , eap , email , fqdn , keyring , netmask , pool , show crypto ikev2 profile , show crypto ikev2 sa , subnet-acl , wins.
The following sections provide information about this feature: The following commands were introduced or modified: address IKEv2 keyring , identity IKEv2 keyring , identity local, match IKEv2 policy , and match IKEv2 profile , show crypto ikev2 session, show crypto ikev2 sa, show crypto ikev2 profile, show crypto ikev2 policy, debug crypto condition, clear crypto ikev2 sa.
Enables privileged EXEC mode. Enter your password if prompted. The range is from 1 to Enables IKEv2 error diagnostics and defines the number of entries in the exit path database. Allows live checks for peers as follows: interval --Specifies the keepalive interval in seconds. Enables call admission control as follows: max-in-negotation-sa limit --Limits the total number of in-negotiation IKEv2 SAs on the node.
Allows multiple IKEv2 request-response pairs in transit. Exits global configuration mode and returns to privileged EXEC mode. Specifies one or more transforms of the encryption type, which are as follows: 3des aes-cbc aes-cbc aes-cbc Specifies one or more transforms of the integrity algorithm type, which are as follows: The sha1 keyword specifies SHA-1 HMAC variant as the hash algorithm.
Specifies the Diffie-Hellman DH group identifier. Optional Displays the IKEv2 proposal. Use the show crypto ikev2 policy command to display the IKEv2 default policy. Specifies the proposals that must be used with the policy.
The proposals are prioritized in the order of listing. You must specify at least one proposal. Optionally, you can specify additional proposals with each proposal in a separate statement. The default is global FVRF. The match fvrf any command must be explicitly configured in order to match any VRF. Optional Displays the IKEv2 policy.
Defines the peer or peer group and enters IKEv2 keyring peer configuration mode. Optional Describes the peer or peer group. Specifies the peer using a hostname.
Specifies an IPv4 or IPv6 address or range for the peer. Specifies the preshared key for the peer. Enter the local or remote keyword to specify an asymmetric preshared key. By default, the preshared key is symmetric. Optional Describes the profile. If cert , psk , or eap keywords are not specified, the AAA accounting method list is used irrespective of the peer authentication method. Specifies the local or remote authentication method.
You can specify only one local authentication method but multiple remote authentication methods. Both local and external AAA is supported for group authorization. The AAA method list defined in global configuration mode using the aaa authorization command specifies if the authorization is local or external AAA based.
This document is a guide for administrators and users while troubleshooting client VPN issues. Use this document to identify and resolve client VPN issues faster.
This article also outlines troubleshooting methods for client VPN connectivity issues, primarily for Windows-based clients, including a list of common errors as well as some common issues and solutions for accessing resources over client VPN.
Ensure your MX is online and accessible over the internet. You can verify internet connectivity using the Ping appliance button on the Tools tab of the appliance status page. Consider enabling Dynamic DNS and using the hostname e.
X or X subnet range. Also, verify if there are any firewalls blocking UDP traffic on ports or If you are receiving authentication errors, reverify the username, password, and shared secret. Refer to this KB if you are unable to connect with any of the authentication methods.
If you are not sure what the shared secret is, retrieve it using Show secret on the dashboard Client VPN page. VPNs require the shared secret to match on the VPN server and client before tunnels can be established. Try changing your shared secret to eliminate the shared secret issue. As a best practice, the shared secret should not contain any special characters at the beginning or end. A frequently seen issue is the VPN adaptor settings changing after a Windows update. If you see bidirectional traffic and are still unable to connect, review the VPN configuration settings.
Meraki is working on a long-term solution for this issue. You can also explore the Systems Manager Sentry option, which refreshes your VPN settings periodically to ensure your adaptor settings align with configurations on the VPN server. If a client VPN connection is failing to establish from a Windows device, but no error message appears on the screen, the Event Viewer can be used to find an error code associated with the failed connection attempt:.
Step 1. Step 2. Step 3. A client VPN connection failure should show up as an Error event type. Clicking on the event will show the associated error code. Microsoft's knowledge base article lists error codes and their meanings however, some of the more frequently seen error codes are listed here:.
This issue may also result in no event log messages if the client's traffic doesn't successfully reach the MX's WAN interface. Solution : Ensure that the shared secret is configured correctly on the client machine. It must match between the MX and the client. More information about setting the shared secret can be found in the links at the top of the page. For more information about how to turn on automatic updating, see Get security updates automatically.
Note For Windows RT 8. To get the stand-alone package for this update, go to the Microsoft Update Catalog website. The English United States version of this software update installs files that have the attributes that are listed in the following tables. GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
Windows 8. Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! Privacy policy. Diffie-Hellman groups determine the length of the base prime numbers that are used during the key exchange. The strength of any key derived depends in part on the strength of the Diffie-Hellman group on which the prime numbers are based.
Group 2 medium is stronger than Group 1 low. Group 1 provides bits of keying material, and Group 2 provides 1, bits. If mismatched groups are specified on each peer, negotiation does not succeed.
0コメント