Cisco GRS User Manual

SUMMARY STEPS
1.
configure
2.
service cgn instance-name
3.
service-type nat44 nat1
4.
inside-vrf vrf-name
5.
map [outside-vrf outside-vrf-name] address-pool address/prefix
6.
end or commit
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure
Example:
RP/0/RP0/CPU0:router# configure
Step 1
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
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
RP/0/RP0/CPU0:router(config-cgn-invrf)#
Step 4
Configures an inside VRF to an outside VRF and address pool
mapping.
map [outside-vrf outside-vrf-name] address-pool
address/prefix
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf)# map
outside-vrf outside vrf1 address-pool
Step 5
10.10.0.0/16
or
RP/0/RP0/CPU0:router(config-cgn-invrf)# map
address-pool 100.1.0.0/16
Saves configuration changes.end or commit
Example:
RP/0/RP0/CPU0:router(config-cgn-invrf-afi)#
end
Step 6
•
When you issue the end command, the system prompts you
to commit changes:
Uncommitted changes found, commit them before exiting
(yes/no/cancel)?
or
Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco CRS Router, Release 5.2.x
OL-32659-01 49
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