Cisco GRS User Manual

PurposeCommand or Action
Configuring the Carrier Grade NAT for Static Port Forwarding
Perform this task to configure CGN for static port forwarding for reserved or nonreserved port numbers.
SUMMARY STEPS
1.
configure
2.
service cgn instance-name
3.
service-type nat44 nat1
4.
inside-vrf vrf-name
5.
protocol tcp
6.
static-forward inside
7.
address address port number
8.
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 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-nat44)# inside-vrf
insidevrf1
RP/0/RP0/CPU0:router(config-cgn-invrf)#
Step 4
Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco CRS Router, Release 5.2.x
44 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