The Cisco ACI SPAN options offer different levels of visibility. Specify the source port. The key must be equal to the "erspan-id" defined in the ERSPAN switch configuration . All you have to do is turn it on. Little explanation of what we have: ACI fabric with two leaves - 101 & 102, switch ME3400, router and monitor device that will receive SPAN data for further analysis. ERSPAN users on Cisco ASR 1000 Series Routers can configure a list of ports as a source or a list of VLANs as a source, but cannot configure both for a given session. See ovs-fields(7) for matching and setting . SPAN is however limited to one switch, RSPAN is able to send traffic between switches but this . Start learning cybersecurity with CBT Nuggets. We will focus on interface configuration of each type, zone configuration, and how to get traffic to pass through or to the device. CSR1000v# show running-config | b monitor These factors are summarized below. Basic ERSPAN configuration . When you configure ERSPAN source on a Cisco Nexus 7000 Series switch that acts as a MPLS PE and the destination of the ERSPAN session is remote across the MPLS network, the ERSPAN packet will be transmitted as a regular IP packet and does not include the MPLS label. This is how to configure ERSPAN in Nexus switches. Configure the interface. Configuring two SPAN or ERSPAN sessions on the same source interface with only one filter is not supported. ERSPAN allows you to monitor traffic across switches without the need for VLAN trunks. A SPAN destination is a Layer 2 port, Layer 3 port, or an EtherChannel, to which local SPAN, RSPAN, or ERSPAN sends traffic for analysis. Now, we need to connect an analyzer at e2/3 port on the destination switch (NX-02) and we will get the capture data. With above configuration, you should be able to see PortChannel 200 traffic on your PC running . Cisco Nexus 5000 Series NX-OS System Management Configuration Guide, Release 5.2(1)N1(1) 14 Configuration Example for an IP Address as the Source for an ERSPAN Session Identify the ports/interfaces that need to be monitored, and the direction of traffic that needs to be captured, (for example, Rx) by entering the following commands: ASR1006 (config)# monitor session 1 type erspan-source ASR1006 (config-mon-erspan-src . For this lab, we'll configure an ERSPAN session from an NX-OS source (a Nexus 7K) to an IOS destination (a Cisco 7600) to provide an example configuration for both platforms. Here we'll configure source interface, direction of traffic, and ERSPAN session ID. SPAN (Local Switched Port Analyzer) is used to monitor specific souce ports' or specific VLANs traffic, mirror this traffic and then sends the traffic to a destination port on Cisco switches and Cisco routers. Consists of an ERSPAN source session, routable ERSPAN GRE-encapsulated traffic, and an ERS-PAN . To configure an ERSPAN destination session on another switch, you associate the destination ports with the source IP address, ERSPAN ID number, and, optionally, a VRF name. The ASR 1000 supports ERSPAN source (monitoring) only on Fast Ethernet, Gigabit Ethernet, and port-channel interfaces. Starting with Cisco IOS XR Software Release 7.0.14, configuration of ERSPAN and security ACL will be separate. snmp-server community letsconfigRO RO snmp-server community letsconfigRW RW. 12. This is very useful for a number of reasons: If you want to use wireshark to capture traffic from an interface that is connected to a workstation, server, phone or anything else you want to sniff. ERSPAN users on Cisco ASR 1000 Series Routers can configure a list of ports as a source or a list of VLANs as a source, but cannot configure both for a given session. When you configure a port or EtherChannel as a SPAN destination, it is dedicated for use only by the SPAN feature. The ip address ip-address force command changes the source IP address for all ERSPAN destination sessions. If the destination requires crossing one or more IP networks, some switches can use Encapsulated Remote SPAN (ERSPAN). Open a monitoring session. Today, in this lesson, we will learn to configure HSRP on Cisco IOS.. We will be following below network topology to implement our HSRP. This is the IP address of the switch sourcing ERSPAN packets origin ip address 10.21 . . It looks like you can not configure more than one source session under one destination session. RSPAN VS ERSPAN. When a session is configured through the ERSPAN configuration CLI, the session ID and the session type cannot be changed. I have a setup in my NAM using vNAM 6.0 (2). Configure and Verify Network State Tracking on Nexus 1000v How to Deploy a Nexus 1000v lab with a single ESX host APCON supports all Cisco ACI SPAN types. What we are now trying to do is setup the ERSPAN destination on a Nexus 7k, then monitor the session to a physical interface and hand that off to ATA as raw packets. This is particular useful after 1040 Sensor announced EoS, and it can provide data to Prime . The video walks you through different operational mode on Cisco FTD 6.1 as physical and virtual (NGFWv) devices covering, routed, passive, inline, transparent and ERSPAN modes. zSpan. Here is the sample config: monitor session 2 type erspan-destination destination interface TE1/1/1 source erspan-id 1 ip address 1.2.3.4. Local SPAN is the SPAN type in which, both source and destination ports reside in the same switch. USM Anywhere supports SPAN, RSPAN, ERSPAN, and VMware Encapsulated Remote Mirroring (L3) Source, which is an ERSPAN-like feature. With a PFC3, Release 12.2 (18)SXE and later releases support ERSPAN (see the "ERSPAN Guidelines and Restrictions" section ). monitor session 1 type erspan-source erspan-id 100 vrf default destination ip x.x.x.x (your capture station) source vlan 500 no shut (don't forget to no shut the session and then shutdown when you're done!) ERSPAN source sessions do not copy locally sourced RSPAN VLAN traffic from source trunk ports that carry RSPAN VLANs. Encapsulated remote SPAN (ERSPAN): encapsulated Remote SPAN (ERSPAN), as the name says, brings generic routing encapsulation (GRE) for all captured traffic and allows it to be extended across Layer 3 domains. The session number is simply the monitor session and can be any available session. SPAN is used generally for troubleshooting and monitoring activities on the Cisco devices. You can however terminate the L2GRE from an ESX 5.5 system on Wireshark, or a Linux box, or certain Cisco IOS "XE"-based products like the ASR 1000 series or the 4500-series. In this lesson, we will learn . I try to do this: switch (config)# monitor session 10 type erspan-source ?
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