Type : ERSPAN Source Session Status : Admin Enabled Source Ports : RX Only : Gi0/1/0 Destination IP Address : 10.1.1.1 MTU : 1464 Destination ERSPAN ID : 101 Origin IP Address : 172.16.1.1 To monitor the statistics of monitored traffic, you need to use "show platform hardware qfp active feature erspan state" command: ERSPAN transports mirrored traffic over an IP network and ensures better network reliability and availability. 1. I will present a sample configuration based on below diagram. monitor session 10 type erspan-source source interface GigabitEthernet0/0/0 destination erspan-id 10 ip address 10.10.10.1 origin ip address 10.10.10.1 monitor session 20 type erspan-destination destination interface GigabitEthernet0/0/1 source erspan-id 10 ip address 10.10..1 erspan-id 1 mtu 1464 ip address 10.230.10.1 origin ip address 10.230.10.2 You also must issue the command no shutdown after the command monitor session 1 type erspan-source in order to activate session. The key must be equal to the "erspan-id" defined in the ERSPAN switch configuration . We need to designate Lo1 as the origin IP address for the GRE tunnel. You have been given an IP address and want to find the port which the machine that owns that ip address is plugged into. So far, we've touched on the need in some environments for a probe, as well the ability to configure and use . description testing. destination ip 5.5.5.5. source interface Ethernet1/22 both. and the configuration as follows. A ToS or TTL can also be assigned to the ERSPAN traffic using the 'erspan {tos <tos-value> | ttl <ttl-value>}' command in global configuration mode. Note that the session is administratively disabled by default and must be manually no shut to start the capture. Switch1 (config-mon-erspan-src-dst)# origin ip address 172.16.10.10 < ip address on switch 1 Switch2 Switch2_Remote (config)# monitor session 1 type erspan-destination Switch2_Remote (config-mon-erspan-dst)# destination interface fa0/5 Switch2_Remote (config-mon-erspan-dst)# source Switch2_Remote (config-mon-erspan-dst-src)# erspan-id 110 monitor erspan origin ip-address 1.1.1.1 global . erspan-id erspan-flow-id; ip address ip-address [force] vrf vrf-id; no shutdown; end; Plixer FlowPro Series. monitor erspan origin ip-address 10.1.2.1 global On your Sniffer PC running Wireshark, you'll want to configure a Capture Filter that limits the captured traffic to IP Protocol number 47, which is GRE. ERSPAN transports mirrored traffic over an IP network using the following process: A source router encapsulates the traffic and sends the packet over the network. The packet is decapsulated at the destination router and then sent to the destination interface. interface Ethernet1/10 description ERSPAN Layer3 vrf member monitoring ip address 10.100.1.2/30 no shutdown ! NOTE: I have not found a way to use "vrf management" on the 9000 series vrf default ! In this lesson, we will learn to configure ERSPAN in Nexus switches. interface loopback100 description ERSPAN Loopback vrf member monitoring ip address 1.1.1.1/32 ! ERSPAN source options include elements such as: Ethernet ports and port channels monitor erspan origin ip-address x.x.x.x global (for this IP I use a loopback int as the source) Use the capture filter ip proto 0x2f in Wireshark to strip out the GRE information. Configure the ERSPAN global origin IP address. Optional: you can specify attributes like the ToS (Type of Service), TTL, etc. Lastly, start your capture. Device(config)#monitor session 1 type erspan-source Device(config-mon-erspan-src)#destination Device(config-mon-erspan-src-dst)#no origin ip address 10.10..1 Device(config-mon-erspan-src-dst)#ip address 10.10..1 B. For Router2, the session type will be erspan-destination, and the source will be configured using the 'source' command: For the destination we have to specify: Unique session ID, doesn't have to match with the source session. The ERSPAN version is 1 (type II). 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. Home Juniper . no shut . switch_1 (config)# monitor erspan origin ip-address 10.254.254.21 global !--- This is sometimes referred to as session monitoring. The local IP is the ens192 address (the IP address of the virtual machine). Here in this article we are going to configure the ERSPAN port on Nexus 7K switches Fig 1.1- ERSPAN Step 1: Lets configured the Source SPAN on Nexus 7K1 NDNA_N7K1#config t NDNA_N7K1 (config)# interface eth1/2 NDNA_N7K1 (config-if)# ip address 10.10.10.1/24 NDNA_N7K1 (config-if)# no shutdown NDNA_N7K1 (config-if)# end NDNA_N7K1#config t This . Enable the new virtual interface ERSPAN transports mirrored traffic over an IP network, which provides remote monitoring of multiple switches across your network. Encapsulated Remote SPAN (ERSPAN) identifies visibility gaps and vulnerabilities, but using it enables flow data to passively monitor on one or more ports or VLANs, and then sends traffic to the target destination. Hope it will be helpful. In that case the erspan-id is "10", so the key must be "10". Origin IP address which is used as the source for the GRE tunnel. 47 in HEX is 2F, so the capture filter for this is ip proto 0x2f. Unique ERSPAN flow ID. monitor erspan origin ip-address 172.16..2 global monitor session 1 type erspan-source source interface Po200 no shut destination erspan-id 18 ip address x.x.33.228 origin ip address x.x.x.18 With above configuration, you should be able to see PortChannel 200 traffic on your PC running wireshark as shown below erspan-id 20 vrf monitoring destination ip 10.100.1.1 source vlan 120,124,129 both no shut monitor erspan origin ip-address 1.1.1.1 global ! Switch port Analyzer (SPAN) is an efficient, high performance traffic monitoring system. ASR1002 (config-mon-erspan-src-dst)# origin ip address 172.16.1.1 SW6509 (config)# monitor session 2 type erspan-destination SW6509 (config-mon-erspan-dst)# destination interface gigabitEthernet2/2/1 SW6509 (config-mon-erspan-dst)# no shutdown SW6509 (config-mon-erspan-dst)# source SW6509 (config-mon-erspan-dst-src)# erspan-id 101 vrf default. Note The ERSPAN feature is not supported on Layer 2 switching interfaces. 00:00:09:fa:aa:3e 10.1.5.34 server1.domain.com vlan.1 none. You should see something like this: Destination interface (s) where you want to forward the traffic to. Encapsulated Remote Switched Port Analyzer (ERSPAN) is a technique to mirror traffic over L3 network. First you need to find the mac address of the device. At the destination router, the packet is de-capsulated and sent to the destination interface. SPAN is used for troubleshooting connectivity issues and calculating network utilization and performance, among many others. I am tryig ERSPAN using nexus 3000 devices. Specify the vrf that ERSPAN will use to route to the destination IP ! How to Setup the ERSPAN On the device where you want to run the capture enter global config mode and enter the following: monitor session 1 type erspan-source source interface Te1/0/1 destination erspan-id 5 ip address 10.1.1.10 origin ip address 10.1.1.1 The session number is simply the monitor session and can be any available session. The remote IP is the Catalyst 9500 address. 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!) Capturing ERSPAN Traffic with Wireshark We are going to capture and analyze ERSPAN traffic with Wireshark packet sniffer. LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 4.19 000/103] 4.19.19-stable review @ 2019-01-29 11:34 Greg Kroah-Hartman 2019-01-29 11:34 ` [PATCH 4.19 001/103] amd-xgbe: Fix mdio access for non-zero ports and clause 45 PHYs Greg Kroah-Hartman ` (105 more replies) 0 siblings, 106 replies; 122+ messages in thread From: Greg Kroah-Hartman @ 2019-01-29 11:34 UTC . Device(config)#monitor session 1 type erspan-source Device(config-mon-erspan-src)#destination Device(config-mon-erspan-src-dst)#no vrf 1 show arp | match 10.1.5.34. admin@ST3> show arp | match 10.1.5.34. 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 . Origin ip address ip-address [force] Vrf vrf-id; No shutdown; End; Create an ERSPAN Destination Session. Enable; Conf t; . This is the IP address of the switch sourcing ERSPAN packets origin ip address 10.21.4.12 no shutdown Example Nexus9000 ERSPAN config: monitor session 1 type erspan-source erspan-id 1 ! A. Configuring ERSPAN This module describes how to configure Encapsulated Remote Switched Port Analyzer (ERSPAN). Traffic will be encapsulated at the source end and then decapsulated at the destination end. Destination switch config: monitor session 4 type . The traffic is encapsulated at the source router and is transferred across the network. The global keyword here signifies that the command applies across all Nexus virtual device contexts (VDCs). monitor erspan origin ip-address 192.0.2.1 global Then, in the VDC containing the source interface, I created a monitor session to the destination IP of the target machine. Our source configuration is almost complete, but an additional global command is necessary for ERSPAN to function. The command used is 'origin ip address <ip-address>'. Source switch session: monitor session 3 type erspan-source. ERSPAN Types ERSPAN Sources It directs or mirrors traffic from a source port or VLAN to a destination port. Vrf-Id ; no shutdown ; end ; Plixer FlowPro series will present a configuration. Destination interface ( s ) where you want to find the mac address of virtual - lkml.kernel.org < /a > Home Juniper decapsulated at the destination interface /a >. Local IP is the ens192 address ( the IP address ip-address [ force ] vrf ; The GRE tunnel ERSPAN feature is not supported on Layer 2 switching interfaces transferred across network. ; no shutdown ; end ; Plixer FlowPro series will use to route to the router No shut to start the capture GRE tunnel over an IP network and ensures better network and! 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