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CGN: NetFlow BPA Logger Does Not Work in ASR1k

DesistoCARA
Level 1
Level 1

Hi, I'm currently trying to make a CISCO_ASR1002:
Cisco IOS XE Software, Version 03.16.06.S - Extended Support Version
Cisco IOS Software, ASR1000 Software (PPC_LINUX_IOSD-ADVENTERPRISEK9-M), Version 15.5 (3) S6, LAUNCH SOFTWARE (fc3)

Send CGNAT translation logs via NETFLOWv9 to a server, I'm currently using the commands:
translations of ip nat-log flow-export v9 udp destination address port
ip nat limit settings pap limit 30 set size bpa 64

However, validating via TCPDUMP on the server, or CISCO, it sends a packet of size 164 every 60s. Information about the templates Cisco has available and nothing more:WhatsApp Image 2019-09-21 at 17.34.13.jpeg

 

 

WhatsApp Image 2019-09-21 at 17.34.36.jpeg

 

However, once I modify the command, I let NAT work only with PAP, with the command:
ip nat settings pap

 

Viewing or TCPDUMP, start receiving multiple packets, which do not include information about CGNAT translations, and still continue to receive packet size 164 every 60s, including template information:WhatsApp Image 2019-09-21 at 17.34.56.jpeg

 


Want to know or what is missing for me to use BAP and Cisco to send as FLOW information to my server;

2 Replies 2

NetSchizo
Level 1
Level 1

Did you ever figure this out or find a fix? I'm having exactly this same problem. The netflow logger SHOULD be sending template 267 flows, but sends NOTHING...

Hi,

   Just to ensure we're all on the same page, can you explain the problem you're facing and can you share relevant config for us, as well as relevant show outputs? Have you checked this as a reference: https://community.cisco.com/t5/routing/cgnat-bpa-log-ios-xe/td-p/2906238

Best,

Cristian.

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