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 CGN NAT44
application.
service-type nat44 nat1
Example:
RP/0/RP0/CPU0:router(config-cgn)#
service-type nat44 nat1
Step 3
Limits the number of entries per address for each subscriber of the
system
portlimit value
Example:
RP/0/RP0/CPU0:router(config-cgn-nat44)#
portlimit 100
Step 4
Configures an inside VRF named insidevrf1 and enters CGN inside
VRF configuration mode.
inside-vrf vrf-name
Example:
RP/0/RP0/CPU0:router(config-cgn-nat44)#
inside-vrf insidevrf1
Step 5
RP/0/RP0/CPU0:router(config-cgn-invrf)#
Sets the port limit per VRF. The port limit value per VRF (300)
overrides the port limit value specified globally (100) . The port limit
value per VRF (300) is applied to all the subscribers in the insidevrf1.
portlimit value
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf)#
portlimit 300
Step 6
Saves configuration changes.end or commit
Example:
RP/0/RP0/CPU0:router(config-cgn)# end
or
RP/0/RP0/CPU0:router(config-cgn)# commit
Step 7
•
When you issue the end command, the system prompts you to
commit changes:
Uncommitted changes found, commit them before exiting
(yes/no/cancel)?
[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.
◦
Entering cancel leaves the router in the current configuration
session without exiting or committing the configuration
changes.
Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco CRS Router, Release 5.2.x
OL-32659-01 51
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