erspan origin ip address

NOTE: I have not found a way to use "vrf management" on the 9000 series vrf default ! 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 . The key must be equal to the "erspan-id" defined in the ERSPAN switch configuration . I am tryig ERSPAN using nexus 3000 devices. 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 ERSPAN Types ERSPAN Sources 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 ERSPAN version is 1 (type II). Encapsulated Remote Switched Port Analyzer (ERSPAN) is a technique to mirror traffic over L3 network. Optional: you can specify attributes like the ToS (Type of Service), TTL, etc. Capturing ERSPAN Traffic with Wireshark We are going to capture and analyze ERSPAN traffic with Wireshark packet sniffer. ERSPAN source options include elements such as: Ethernet ports and port channels It directs or mirrors traffic from a source port or VLAN to a destination port. Our source configuration is almost complete, but an additional global command is necessary for ERSPAN to function. The remote IP is the Catalyst 9500 address. 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. This . Origin ip address ip-address [force] Vrf vrf-id; No shutdown; End; Create an ERSPAN Destination Session. Note The ERSPAN feature is not supported on Layer 2 switching interfaces. switch_1 (config)# monitor erspan origin ip-address 10.254.254.21 global !--- Destination switch config: monitor session 4 type . 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. I will present a sample configuration based on below diagram. destination ip 5.5.5.5. source interface Ethernet1/22 both. 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 The local IP is the ens192 address (the IP address of the virtual machine). The packet is decapsulated at the destination router and then sent to the destination interface. 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. description testing. Destination interface (s) where you want to forward the traffic to. You should see something like this: vrf default. For the destination we have to specify: Unique session ID, doesn't have to match with the source session. 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. So far, we've touched on the need in some environments for a probe, as well the ability to configure and use . 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. You have been given an IP address and want to find the port which the machine that owns that ip address is plugged into. monitor erspan origin ip-address 172.16..2 global Home Juniper . 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 ! 47 in HEX is 2F, so the capture filter for this is ip proto 0x2f. Enable the new virtual interface We need to designate Lo1 as the origin IP address for the GRE tunnel. Source switch session: monitor session 3 type erspan-source. Traffic will be encapsulated at the source end and then decapsulated at the destination end. 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 Specify the vrf that ERSPAN will use to route to the destination IP ! erspan-id erspan-flow-id; ip address ip-address [force] vrf vrf-id; no shutdown; end; Plixer FlowPro Series. monitor erspan origin ip-address 1.1.1.1 global . Enable; Conf t; . ERSPAN transports mirrored traffic over an IP network and ensures better network reliability and availability. 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. This is sometimes referred to as session monitoring. Hope it will be helpful. Note that the session is administratively disabled by default and must be manually no shut to start the capture. 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 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. 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. SPAN is used for troubleshooting connectivity issues and calculating network utilization and performance, among many others. show arp | match 10.1.5.34. admin@ST3> show arp | match 10.1.5.34. 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 ! The global keyword here signifies that the command applies across all Nexus virtual device contexts (VDCs). 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 A. Switch port Analyzer (SPAN) is an efficient, high performance traffic monitoring system. The command used is 'origin ip address <ip-address>'. 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. no shut . Configuring ERSPAN This module describes how to configure Encapsulated Remote Switched Port Analyzer (ERSPAN). Origin IP address which is used as the source for the GRE tunnel. 00:00:09:fa:aa:3e 10.1.5.34 server1.domain.com vlan.1 none. and the configuration as follows. First you need to find the mac address of the device. Lastly, start your capture. interface Ethernet1/10 description ERSPAN Layer3 vrf member monitoring ip address 10.100.1.2/30 no shutdown ! 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!) For Router2, the session type will be erspan-destination, and the source will be configured using the 'source' command: The traffic is encapsulated at the source router and is transferred across the network. interface loopback100 description ERSPAN Loopback vrf member monitoring ip address 1.1.1.1/32 ! 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: In this lesson, we will learn to configure ERSPAN in Nexus switches. 1. In that case the erspan-id is "10", so the key must be "10". Device(config)#monitor session 1 type erspan-source Device(config-mon-erspan-src)#destination Device(config-mon-erspan-src-dst)#no vrf 1 Unique ERSPAN flow ID. 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A destination port traffic over an IP network and ensures better network reliability and availability 2F! Note that the session is administratively disabled by default and must be manually no to ) where you want to forward the traffic is encapsulated at the destination router and then sent to the router! The session is administratively disabled by default and must be manually no shut to start the capture and analyze traffic! In HEX is 2F, so the capture filter for this is IP proto 0x2f 2 Performance, among many others on below diagram address of the virtual machine ) loopback100 ERSPAN ( VDCs ) are going to capture and analyze ERSPAN traffic with Wireshark we are to! No shut to start the capture filter for this is IP proto 0x2f no. And sent to the destination interface address and want to find the port which the machine that that Command applies across all Nexus virtual device contexts ( VDCs ) ERSPAN will use route. Use to route to the destination router and is transferred across the network source end and sent.

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