Cisco GRS User Manual

PurposeCommand or Action
Configures the instance named cgn1 for the CGN
application and enters CGN configuration mode.
service cgn instance-name
Example:
RP/0/RP0/CPU0:router(config)# service cgn cgn1
RP/0/RP0/CPU0:router(config-cgn)#
Step 2
Configures the service type keyword definition for
NAT44 application.
service-type nat44 nat1
Example:
RP/0/RP0/CPU0:router(config-cgn)# service-type nat44 nat1
Step 3
Configures the inside VRF for the CGN instance
named cgn1 and enters CGN inside VRF configuration
mode.
inside-vrf vrf-name
Example:
RP/0/RP0/CPU0:router(config-cgn)# inside-vrf insidevrf1
RP/0/RP0/CPU0:router(config-cgn-invrf)#
Step 4
Configures the external-logging facility for the CGN
instance named cgn1 and enters CGN inside VRF
address family external logging configuration mode.
external-logging netflowv9
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf)# external-logging
netflowv9
RP/0/RP0/CPU0:router(config-cgn-invrf-af-extlog)#
Step 5
Configures the logging server information for the IPv4
address and port for the server that is used for the
server
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf-af-extlog)# server
RP/0/RP0/CPU0:router(config-cgn-invrf-af-extlog-server)#
Step 6
netflowv9-based external-logging facility and enters
CGN inside VRF address family external logging
server configuration mode.
Configures the path MTU with the value of 2900 for
the netflowv9-based external-logging facility.
path-mtu value
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf-af-extlog-server)#
path-mtu 2900
Step 7
Saves configuration changes.end or commit
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf-af-extlog-server)#
end
Step 8
•
When you issue the end command, the system
prompts you to commit changes:
Uncommitted changes found, commit them before
exiting (yes/no/cancel)?
or
RP/0/RP0/CPU0:router(config-cgn-invrf-af-extlog-server)#
commit
[cancel]:
◦
Entering yes saves configuration changes
to the running configuration file, exits the
configuration session, and returns the router
to EXEC mode.
◦
Entering no exits the configuration session
and returns the router to EXEC mode
without committing the configuration
changes.
Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco CRS Router, Release 5.2.x
60 OL-32659-01
Implementing Carrier Grade NAT on Cisco IOS XR Software
Configuring the Policy Functions for the Carrier Grade NAT

Cisco GRS Specifications

General

Brand	Cisco
Model	GRS
Category	Network Router
Language	English