{"id":18586,"date":"2019-10-21T16:36:13","date_gmt":"2019-10-21T16:36:13","guid":{"rendered":"https:\/\/made4it.com.br\/blog\/netflow-configuration-on-cisco-routers\/"},"modified":"2026-06-29T19:40:05","modified_gmt":"2026-06-29T19:40:05","slug":"netflow-configuration-on-cisco-routers","status":"publish","type":"post","link":"https:\/\/made4it.com.br\/en\/blog\/netflow-configuration-on-cisco-routers\/","title":{"rendered":"Netflow Configuration on Cisco Routers"},"content":{"rendered":"\n

Hello<\/p>\n\n

Today we’ll show you how to configure your Cisco router to export NetFlow. <\/p>\n\n

Here we have the Network topology and the Netflow Server information<\/p>\n\n

\"\"<\/figure>\n\n

These are the steps required to configure the Cisco ASR9k Router to export Netflow v5\/v9<\/p>\n\n

  1. Configure Flow Exporter-Map<\/li>
  2. Configuring the Sampler-Map<\/li>
  3. Configure Monitor-Map for IPv4 and IPv6<\/li>
  4. Configure the interface to enable Netflow on the interface<\/li><\/ol>\n\n

    Let’s go to the step-by-step configuration<\/p>\n\n

    1. Configure Flow Exporter-Map<\/h2>\n\n

    Configure the Flow Exporter-Map where we tell you the Netflow Server IP, port, Netflow version and other information, following the example:<\/p>\n\n

    flow exporter-map MADE4FLOW-EM destination 192.168.210.47 source ge-0\/0\/0 transport udp 2055 version v9 options interface-table template data timeout 60 options interface-table timeout 60 exit<\/pre>\n\n
    2. Configuring the Sampler-Map<\/h2>\n\n
    The sampler-map will tell the Cisco ASR9k Router the sampling values to send to the Netflow Collection Server<\/p>\n\n
    sampler-map MADE4FLOW-SM random 1 out of 500 exit<\/pre>\n\n
    In this example we are randomly exporting 1 of 500 packages.  By using sampling, you reduce the load on your router’s CPU, thereby conserving resources.<\/p>\n\n
    3. Configuring Monitor-Map for IPv4 and IPv6<\/h2>\n\n
    The next step is to configure Monitor-map to specify which type of protocol we will collect and which exporter we will use.<\/p>\n\n
    For IPv4 use<\/p>\n\n
    flow monitor-map MADE4FLOW-FMM record ipv4exporter MADE4FLOW-EM cache entries 800000 cache timeout active 60 cache timeout inactive 15exit<\/pre>\n\n
    For IPv6<\/p>\n\n
    flow monitor-map MADE4FLOW-FMM-v6 record ipv6 exporter MADE4FLOW-EM cache entries 800000 cache timeout active 60 cache timeout inactive 15exit<\/pre>\n\n
    4. Configure the interface to enable Netflow on the interface<\/h2>\n\n
    To enable your router to collect information it is necessary to enable the Flow command on all interfaces, use the following commands to enable in IPv4 and IPv6<\/p>\n\n
    interface Gi0\/1 IPv4 flow monitor MADE4FLOW-FMM sampler MADE4FLOW-SM ingress IPv6 flow monitor MADE4FLOW-FMM-v6 sampler MADE4FLOW-SM ingress<\/pre>\n\n
    \n\n
    All configuration used<\/h2>\n\n
    flow exporter-map MADE4FLOW-EMdestination 192.168.210.47 source ge-0\/0\/0 transport udp 2055version v9options interface-tabletemplate data timeout 60options interface-table timeout 60exit<\/p>\n\n
    sampler-map MADE4FLOW-SM random 1 out of 500 exit<\/p>\n\n
    flow monitor-map MADE4FLOW-FMM record ipv4exporter MADE4FLOW-EM cache entries 800000 cache timeout active 60 cache timeout inactive 15exit<\/p>\n\n
    flow monitor-map MADE4FLOW-FMM-v6 record ipv6 exporter MADE4FLOW-EM cache entries 800000 cache timeout active 60 cache timeout inactive 15<\/p>\n\n
    interface Gi0\/1 IPv4 flow monitor MADE4FLOW-FMM sampler MADE4FLOW-SM ingress IPv6 flow monitor MADE4FLOW-FMM-v6 sampler MADE4FLOW-SM ingress<\/p>\n\n
    \n\n
    Netflow on Cisco ASR100x (1002, 1006, 1008)<\/h2>\n\n
    If your router is from the Cisco ASR100x series (1002, 1006, 1008), use the commands below:<\/p>\n\n
    flow exporter MADE4FLOW destination 192.168.210.47 transport udp 2055 source tenGigabitEthernet 0\/3\/0!flow monitor MADE4FLOW_monitor exporter MADE4FLOW cache timeout active 60 record netflow-original!sampler 1of500 description 1-out-of-500 sampler mode random 1 out-of-500<\/pre>\n\n
    On each interface of your router, run the following commandip flow monitor MADE4FLOW_monitor sampler 1of500 input<\/pre>\n\n
    \n\n
    Below is the total configuration for the Cisco ASR100x Line (1002, 1006, 1008)<\/p>\n\n
    flow exporter MADE4FLOW destination 192.168.210.47 transport udp 2055 source tenGigabitEthernet 0\/3\/0! flow monitor MADE4FLOW_monitor exporter MADE4FLOW cache timeout active 60 record netflow-original! sampler 1of500 description 1-out-of-500 sampler mode random 1 out-of-500<\/p>\n\n
    ON EACH INTERFACE, ADD THE FOLLOWING COMMAND: `` `ip flow monitor MADE4FLOW_monitor sampler 1of500 input`<\/p>\n\n
    \n\n
    If you have any questions, feel free to contact us via WhatsApp, email, or phoneWhatsApp: +55 43 9 8485-4013<\/a>Email: suporte@made4flow.com.brPhone: +55 43 3047-8300See you next time<\/p>\n","protected":false},"excerpt":{"rendered":"
    Learn how to configure Netflow on your Cisco ASR9k or Cisco 100x Line (1002,1004 or 1008) router<\/p>\n","protected":false},"author":5,"featured_media":18588,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[872,902,919],"tags":[1011,1012,1013,1014,1015,1016,1017,903,938,1019,1018,1020,940,941],"class_list":["post-18586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bgp","category-netflow","category-routers","tag-cisco","tag-cisco-ask-9000","tag-cisco-asr1002","tag-cisco-asr1006","tag-cisco-asr1008","tag-cisco-asr100x","tag-cisco-asr9k","tag-made4flow","tag-netflow","tag-netflow-configuration","tag-netflow-configuration-on-cisco","tag-netflow-on-cisco","tag-netflow-v5","tag-netflow-v9"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t