erspan configuration example

You can configure ERSPAN source sessions and destination sessions on different switches separately. - Network refresh project. . Basic ERSPAN configuration ERSPAN (Encapsulated Remote Switched Port Analyzer) is a feature present on the new IOS-XE on ASR1000 but is also available on Catalyst 6500 or 7600. Peer IP Address: the ERSPAN source IP defined below - for example '10.30.1.203 This traffic will simply be captured, encapsulated in GRE by ASR 1002 natively by the QFP chipset and routed over to the Catalyst 6509. In below example, I have shown how you can configure ERSPAN session on a switch in order to send capture traffic directly to a PC running wireshark. Campus wide, in the data centre with Cisco Nexus gear, ASA firewalls and Internet edge design. Some of the common uses for a GRE tunnel are: Tunneling non-IP address traffic over an IP address network. In the figure, traffic going into and out of the monitor port (in this case, traffic between Host 2 and Host 3) is also sent to Host 1, across the ERSPAN tunnel. navien no hot water pressure; excel all combinations of 1 column / ptp4l -E -2 -S -i eth0 -l 7 -m -q Testing using testptp tool from Linux kernel Software timestamping Timestamp at Application or OS layer Get time from system clock. Local SPAN configuration example SPAN copies all the traffic that comes in and out of source ports or source VLANs to a destination port on the same switch for analysis. Remote SPAN. On the left side there's a host (H1) and on the right side, I have a machine running Wireshark. Configuration examples for ERSPAN Verifying ERSPAN Additional References Feature Information for Configuring ERSPAN Prerequisites for Configuring ERSPAN Access control list (ACL) filter is applied before sending the monitored traffic on to the tunnel. Configuring ERSPAN This module describes how to configure Encapsulated Remote Switched Port Analyzer (ERSPAN). This operates similar to a local mirror or span port on a switch, but in a remote capacity. Tenant - this type of SPAN sessions are usually referred to as ERSPAN sessions and allows you to configure an EPG belonging to the specified Tenant anywhere in the fabric as the SPAN session . Configuring ERSPAN This module describes how to configure Encapsulated Remote Switched Port Analyzer (ERSPAN). It directs or mirrors traffic from a source port or VLAN to a destination port. ipst on cable box millionaire game marquee dj lineup. Configuration Examples for ERSPAN About ERSPAN ERSPAN transports mirrored traffic over an IP v4 or IPv6 network, which provides remote monitoring of multiple switches across your network. Configuration I will use the following topology for this example: Above we have two routers, R1 and R2. LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 4.20 000/117] 4.20.6-stable review @ 2019-01-29 11:34 Greg Kroah-Hartman 2019-01-29 11:34 ` [PATCH 4.20 001/117] amd-xgbe: Fix mdio access for non-zero ports and clause 45 PHYs Greg Kroah-Hartman ` (119 more replies) 0 siblings, 120 replies; 124+ messages in thread From: Greg Kroah-Hartman @ 2019-01-29 11:34 UTC . The traffic is encapsulated at the source router and is transferred across the network. Here are the basic commands you require to capture traffic on PortChannel 200 interface goes to my WLC. Jan 2011 - Apr 20165 years 4 months. Enable the new virtual interface The ASR 1000 supports ERSPAN source (monitoring . IP address multicast tunneling. When these clients associate to the access point, they automatically belong to the correct VLAN . Let's look at an example so we can see how ERSPAN works in action. SPAN is used for troubleshooting connectivity issues and calculating network utilization and performance, among many others. To configure ERSPAN with NVUE, run the nv set system port-mirror session <session-id> erspan <option> command. Involved in the complete overhaul of physical equipment and logical design at the access, distribution and core layers. You would complete these steps to support the VLANs in this example: 1. Example Commands Suppose you want to mirror all the traffic from port Gi1/0/10 to Gi1/0/48 on the same switch. Hawthorn, Victoria, Australia. Let's start with a simple configuration. On a Cisco Nexus 7000 Series switch it looks like this: monitor session 1 type erspan-source description ERSPAN direct to Sniffer PC erspan-id 32 # required, # between 1-1023 vrf default # required destination ip 10.1.2.3 # IP address of Sniffer PC source interface port-channel1 both # Port (s) to be sniffed The key must be equal to the "erspan-id" defined in the ERSPAN switch configuration . SW1(config)# vlan 999 SW1(config-vlan)# remote-span SW1(config)# monitor session 1 source interface FastEthernet 0/10 SW1(config)# monitor session 1 destination remote vlan 999. The remote IP is the Catalyst 9500 address. If using Wireshark, enable "Enforce to decode fake ERSPAN frame" under Edit -> Preference -> Protocols -> ERSPAN. Configuring ERSPAN: In this example we will capture received traffic on the ASR 1002 (GigabitEthernet0/1/0) and send to Catalyst 6509 Gig2/2/1. Configure or confirm the configuration of these VLANs on one of the switches on your LAN. Hope it will be helpful. The order of configuration (Plixer FlowPro or the ERSPAN/GRE device first) is not critical, as long as the information listed here is gathered first. NX-OS Source To configure ERSPAN with NCLU, run the net add port-mirror session <session-id> (ingress|egress) erspan src-port <interface> src-ip <interface> dst-ip <ip-address> command. Swinburne University of Technology. Both the source and destination will be configured. ERSPAN architecture. The following figure shows a typical ERSPAN data flow. coachella resale lyte; avian vet courses. To do this, we will create ERSPAN process firstly. The following command is entered to configure the source: monitor session <span-session-number> type erspan-source This command specifies the session number and the erspan-source session type. The ERSPAN version is 1 (type II). ERSPAN Packet Example ETHER IP GRE ERSPAN ETHER IP Outer routable packet header using GRE (Generic Routing Encapsulation) ERSPAN header with inner packet details . ERSPAN Destination Interface Config In the second switch, we will configure the destination port.Our destination port will be 0/7. Restrictions for Configuring ERSPAN The following restrictions apply for this feature: In that case the erspan-id is "10", so the key must be "10". Switch port Analyzer (SPAN) is an efficient, high performance traffic monitoring system. GRE ERSPAN Example Use Case Encapsulated Remote Switched Port Analyzer (ERSPAN) is a type of GRE tunnel which allows a remote Intrusion Detection System (IDS) or similar packet inspection device to receive copies of packets from a local interface. For example: ERSPAN transports mirrored traffic over an IP network using the following process: SPAN and ERSPAN configuration requires a session ID, which is a number between 0 and 7. The NCLU commands save the configuration in the /etc/cumulus/switchd.d/port-mirror.conf file. I will present a sample configuration based on below diagram. The configuration is pretty straight-forward so let me give you some examples SPAN Configuration. With ERSPAN, port mirroring, from any port to any port, is enabled regardless of the port type and the modularity of the device. P.P.S. The configuration of those policies is only possible at the template level and not at the specific site level. 2. First configure your "source" switch. Both ERSPAN Type II and Type III header decapsulation are supported. IPv6 tunneling over IPv4 GRE tunnel. It is used to send traffic for sniffing over layer3 networks and it works by encapsulating the traffic using a GRE tunnel. The local IP is the ens192 address (the IP address of the virtual machine). . ERSPAN is a Cisco proprietary feature and is available only to Catalyst 6500, 7600, Nexus, and ASR 1000 platforms to date. For example, you can specify an ERSPAN flow ID, from 0 to 1023. 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. Can anybody help with this? Use this option when decapsulating traffic received over a Cisco-standard ERSPAN tunnel. ERSPAN sessions include a source session and a destination session configured on different switches. But ESX sending data as GRE Transparent ethernet bridging when it must be GRE ERSPAN with ERSPAN header. Between the source and destination switches, traffic is encapsulated in GRE, and can be routed over layer 3 networks. ERSPAN Configuration To configure ERSPAN, the example topology below will be used. P.S. [SRX] OSPF over GRE over IPSec Configuration Example. On the access point, assign an SSID to each VLAN . Some monitor devices that are set for "listening" traffic could act as "silent hosts". Configuring ERSPAN: In this example we will capture received traffic on the ASR 1002 (GigabitEthernet0/1/0) and send to Catalyst 6509 Gig2/2/1. This is sometimes referred to as session monitoring. You can set the following SPAN and ERSPAN options: Source port ( source-port) Destination port ( destination) Direction ( ingress or egress) The configuration of each device requires information from the other device (Plixer FlowPro and ERSPAN device). Note The ERSPAN feature is not supported on Layer 2 switching interfaces. Wireshark). In this lesson, we will learn to configure ERSPAN in Nexus switches. Unique ERSPAN flow ID, has to match with the source session. MPLS transport is used between the two switches and routing of the ERSPAN tunnel will take place inside a VRF named Capture. Use the GigaSMART Operation (GSOP) page to configure the ERSPAN decapsulation types and options. The command parameters are described below. The following are other useful configuration examples: [SRX] GRE over IPsec configuration example. You can verify the configuration like this: Traffic will be encapsulated at the source end and then decapsulated at the destination end. The Cisco ERSPAN feature allows you to monitor traffic on one or more ports or VLANs and send the monitored traffic to one or more destination ports. The Cisco ERSPAN feature allows you to monitor traffic on one or more ports or VLANs and send the monitored traffic to one or more destination ports. At this point configuration of SPAN is completed and you should be able to see packets in your monitoring software (ex. I will use the example I showed you earlier: Switch(config)#monitor session 1 source interface fa0/1 Switch(config)#monitor session 1 destination interface fa0/2. I think that this is the reason why Cisco not forwarding this data to SPAN destination port. ERSPAN consists of an ERSPAN source session, routable ERSPAN generic routing encapsulation (GRE)-encapsulated traffic, and an ERSPAN destination session. Encapsulated Remote Switched Port Analyzer (ERSPAN) is a technique to mirror traffic over L3 network. 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. For example, a port can turn on . Destination-Switch-2 (config)# monitor session 1 type erspan-destination Note The ERSPAN feature is not supported on Layer 2 switching interfaces. This means that the tunnel configuration of a particular type of the tunnel must be passed to the tunnel netdevin order to encapsulate the packet. ERSPAN from ESX. This traffic will simply be captured, encapsulated in GRE by ASR 1002 natively by the QFP chipset and routed over to the Catalyst 6509. Hello, I configured ERSPAN from ESX to Cisco 6509 and can see now packets from ESX host. 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