Catalyst 3560 switch software configuration guide, cisco. Mar 19, 2018 cisco wan macsec leverages all the powerful features of macsec ieee 802. The cisco catalyst 3650 is hardware ready for macsec, and software support will be added in a future release. These are all breakable given the correct ability and intent, however unless you are sending absolutely critical national security information. Security configuration guide, cisco ios xe everest 16.
Common encryption security protocols can slow down highspeed network links, but there is an alternative that lets them fly. If you select gcm without the required license, the interface. The fancy way of configuring cisco aci fabric is by using python script for generating api calls. Once you have passed the ccie written exam, you are eligible to schedule your ccie lab and practical exam. Chapter 451 software configuration guiderelease ios xe 3. To configure quantumsecure macsec, we essentially need to configure. Networking softwaredefined data center and whats the way to do it. Nov 27, 2019 catalyst 4500 series switch software configuration guide, ios xe 3. Cisco wan macsec leverages all the powerful features of macsec ieee 802. The macsec key agreement mka protocol provides the required session. The link i am planning is unprotected wave transparent layer1 service with optical encapsulation in carrier network. Macsec port configuration in combination with rspan configuration causes the incorrect rspan of eapol frames, causing issues with macsec encryption setup.
Nov 07, 2018 software configuration guide, cisco ios release 15. It can secure all traffic within a lan, including dhcp and arp, as well as traffic from higher layer protocols. Prevent an encryption bottleneck on highspeed links cisco. It is not supported with the npe license or with a lan base service image. The terminaldevice model is a crossconnect model that provides a unique way to provision the cisco ncs 1002 using yang models that are defined for configuration data and operational data.
Essentially we will have 2x 3560xs connected by 2x fibres. Security configuration guide, cisco ios xe fuji 16. Catalyst 3750x and 3560x software configuration guide, release 15. Catalyst 4500 series switch software configuration guide.
Macsec provides mac layer encryption over wired networks using outofband methods for encryption keying. Your software release may not support all the features documented in this module. Sep 24, 2019 configuring macsec encryption valter popeskic july 11, 2019 security layer 2 this article describes the simplest way to enable macsec using preconfigured static keystring. Passing scores on written exams are automatically downloaded from testing vendors, but may not appear immediately. Cisco ios software crafted encryption packet denial of. Macsec media access control security this describes how to enable macsec media access control security encryption between two catalyst switches. Macsec software image requirements for ex series and qfx series switches.
The encryption supported field indicates whether the slice is provisioned with firmware that supports encryption or not. Consolidated platform configuration guide, cisco ios xe 3. Sep 11, 2018 catalyst 3750x and 3560x software configuration guide, release 15. These mka messages carrying macsec encryption keys are cryptographically encrypted using a key encryption key kek and authenticated with an integrity check key ick, which is derived from the cak. Access control security is the way to secure pointtopoint ethernet links by implementing data integrity check and encryption of ethernet frame. Network traffic encryption in linux using macsec and. Aug 04, 2014 layer two encryption is achievable via a few methods, however, depending on the ios you are running is to whether they are supported, macsec as suggested, l2tp and also gre tunnels may be available. Cisco anyconnect nam will be used in endpointtoswitch macsec. Macsec provides encryption at the layer 2, which is provided by the advanced encryption standard aes algorithm that replaces the des algorithm. Configuring macsec encryption mac security macsec is the ieee 802.
Link layer security can include both packet authentication between switches. Oct 14, 2016 macsec is a layer 2 protocol that relies on gcmaes128 to offer integrity and confidentiality, and operates over ethernet. Understanding media access control security macsec, configuring macsec on ex. Nov 23, 2017 if you select gcm as the sap operating mode, you must have a macsec encryption software license from cisco. Catalyst 4500 series switch software configuration guide, ios.
Of course the devils in the details with each vendors implementation. It encrypts entire ethernet packet except source and destination mac addresses on any devicetodevice, switchtoswitch, routertoswitch, hosttoswitch directly connected wired l2 connection. Catalyst 4500 series switch software configuration. The switch also supports macsec encryption for switchtoswitch internetwork device security using both cisco trustsec network device admission control ndac, security association protocol sap and mkabased key exchange protocol.
Acquiring and downloading the junos os software, acquiring and downloading the macsec feature license, configuring the pic mode of the macsec capable interfaces ex4200 switches only, configuring macsec using static connectivity association key cak mode recommended for enabling macsec on switchtoswitch links, configuring macsec to secure a switchtohost link, configuring macsec using. Catalyst 3560 switch software configuration guide, cisco ios. Macsec is supported on catalyst 356oc universal ip base and ip services licenses. Macsec is the standard for authenticating and encrypting the data link layer between switches. Configuring media access control security macsec on. Configuring macsec on ex, qfx and srx devices techlibrary. Configuring cisco trustsec macsec configuring cisco trustsec macsec configuring cisco trustsec credentials on the switch.
The information below comes from cisco but, given macsec is a standard, id expect it to be quite close for everyone else. The following information is applicable to all ccie lab and practical exams. Understanding media access control security macsec. Macsec configuration i am trying to configure macsec on a 3560x running c3560euniversalk9mz. Macsec provides pointtopoint security on ethernet links between directly connected nodes and is capable of identifying and preventing. The implementation of macsec on the nexus 7000 is 128bit advanced encryption standard aes that is hardwaredriven, which means no additional supervisor cpu is used to encrypt data at any speeds. Embedded event manager in a security context understanding cisco ios software embedded selfmanagement capabilities cisco asr 9000 series aggregation services router system monitoring configuration guide, release 4. Network traffic encryption in linux using macsec and hardware.
Brocade campus feature explainer series this series includes short videos on how to configure new and common features on the brocade campus product lines. The encryption used by macsec ensures that the data in the ethernet frame cannot be viewed by anybody monitoring traffic on the link. How macsec works, connectivity associations, macsec security modes, static cak mode recommended for switchtoswitch links, static sak security mode, dynamic sak security mode, macsec support summary, ex series switches, qfx series switches, mx series. There are no service modules for the cisco catalyst 3650. As of the writing of this article, the mseries modules on the nexus 7000 support 802. Network traffic encryption in linux using macsec and hardware offloading macsec is an ieee standard ieee 802.
Prevent an encryption bottleneck on highspeed links. If you select gcm without the required license, the interface is forced to a linkdown state. Configuring macsec encryption how does internet work. Configuring macsec using static connectivity association key cak mode, configuring macsec using preshared key hitless rollover keychain recommended for enabling macsec on routertorouter links, configuring macsec key agreement protocol in fail open mode, configuring macsec with fallback psk. Cisco has released software updates that address this vulnerability. On the other hand, cisco 3560cx should do the job, but their documentation on this topic is inconsistent. Macsec the cisco catalyst 3750x and 3560x series switches offer exceptional security with integrated hardware support for macsec defined in ieee 802. This chapter describes how to configure media access control security macsec encryption on the catalyst 3750x and 3560x switch. Securing overlay transport virtualization otv with cisco. The plan is to encrypt over these fibres but to etherchannel them for resilienceconvergence p. Solved encryption on cisco switches over layer 2 ethernet. Jul 11, 2019 media access control security or macsec is the layer 2 hop to hop network traffic protection. This table summarizes new and changed information for configuration guide for release 6.
Macsec encryption is optional and userconfigurable. Configuring media access control security macsec on routers. I have a problem, i would like todo macsec betwwen two switches cisco catalyst 3560x but i know that for this operation i needed acs server 5. Note the hw status field might display need upgrade when the user needs to use the macsec feature and upgrades from r6. Configuring netflow on cisco 3750x we have several 3750x series switches running ios 15. Media access control security or macsec is the layer 2 hop to hop network traffic protection. With macsec, encryption rates equal the link speed rates minus a small amount of overhead. Macsec uses the macsec key agreement protocol mka to exchange session keys, and manage encryption keys.
Macsec link goes down periodically with the message. The real advantage for macsec is that the encryptiondeencryption function is done at the phy level of the routerswitch, enabling the encryption rates to equal the link speed rates minus very little encryption header overhead, as shown below. Switchtoswitch macsec will be performed as part of trustsec as well as manual configuration. Encryption on cisco switches over layer 2 ethernet. I cant really find any good material on the internet that has a step by step guide.
If you select gcm as the sap operating mode, you must have a macsec encryption software license from cisco. It defines a way to establish a protocol independent connection between two hosts with data confidentiality, authenticity andor integrity, using gcmaes128. This chapter describes how to configure media access control security macsec encryption on. Macsec encryption is the other part of the macsec capability and its optional but most likely always enabled. The following is a sample of configuring the macsec policy. It means that there are two options with macsec, just to verify that nobody modified the packet on the pointtopoint link and the second option to totally encrypt the packet so nobody can catch it and see whats inside.
Disables macsec encryption for a connectivity association that is configured to enable macsec using static connectivity association key cak or dynamic security mode. Hpe devices that support this feature are a bit expensive and kind of a overkill. Cisco ios configuring switch to switch macsec petenetlive. For the latest caveats and feature information, see bug search. If you select gcm as the sap operating mode, you must have a macsec encryption software license.
Catalyst 4500 series switch software configuration guide, ios xe 3. Since macsec encryption on a hopbyhop basis, dci link should not expect to have ethernet encapsulation happening in the telco side there could be exception with eompls or some pseudowire tunnels. The cisco catalyst 3650 natively supports the features supported by the service module in the 3560x. Ex series,qfx series,mx series,ptx series,acx6360,mx240,mx480,mx960,mx3. Understanding media access control security macsec on mx. At the end, we will analyse macsec frame with wireshark. Just like ipsec protects network layer, and ssl protects application data, macsec protects traffic at data link layer layer 2. Software configuration guide, cisco ios release 15. Catalyst 3750x and 3560x switch software configuration guide ol2530301 1 configuring macsec encryption this chapter describes how to configure media access control security macsec encryption on the catalyst 3750x and 3560x switch. Macsec is supported on catalyst 3850 and 3650 universal ip services and ip base licenses. A unique mac address is generated for each macsec controller.
We will cover both endpointtoswitch and switchtoswitch scenarios. Cisco ios software contains a vulnerability that could allow an attacker to cause a cisco ios device to reload by remotely sending a crafted encryption packet. Macsec configuration on cisco 3850 series switch hi team. Macsec is asic based linerate encryption provided by some platforms. Cisco wan macsec encryption solution to protect your. This macsec key chain ansible playbook is focused on simplifying the rekey process for customers using macsec with preshared keys, running cisco router platforms that run iosxe, and have the hardware capable of supporting the new wan macsec capabilities. Hi all, is anyone aware of any restrictions to using macsec on the uplinks of a service module whilst the uplink ports are in an etherchannel.
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