DescriptionValue
Event NameUserbasedA
Original Source IP10.0.0.1
Inside VRF nameBroadband
Translated Source IP100.1.1.1
Translated First Source Port2048
Translated Last Source Port3071
The number of MSG fields in an UDP packet are determined by the following factors:Note
•
The space available in the UDP packet depends on MTU.
•
The translation events pertaining to MSG records in a given packet must have happened within a
second (starting from the time at which the first event of that packet happened).
Netflow v9 Support
The NAT64 stateful, NAT44, and DS Lite features support Netflow for logging of the translation records..
The Netflow uses binary format and hence requires software to parse and present the translation records.
However, for the same reason, Netflow requires lesser space than Syslog to preserve the logs.
Considerations
The considerations for NetFlow are as follows:
•
NetFlow V9 is supported over UDP.
•
You cannot log onto multiple collectors or relay agents.
•
All the messages comply to RFC 3954.
NetFlow Record Format
As NetFlow V9 is based on templates, the record format contains a packet header and templates or data records
based on templates.
Header
All the fields of the header follow the format prescribed in RFC 3954. The source ID field is composed of
the IPv4 address of ServiceInfra interface (of the card) and specific CPU-core that is generating the record.
Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco CRS Router, Release 5.2.x
100 OL-32659-01
External Logging
Netflow v9 Support
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