Configuring The Carrier Grade Nat For Static Port Forwarding - Cisco GRS Configuration Manual

Configuring the Policy Functions for the Carrier Grade NAT
Command 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
Command or Action
Step 1 configure
Example:
RP/0/RP0/CPU0:router# configure
Step 2 service cgn instance-name
Example:
RP/0/RP0/CPU0:router(config)# service cgn cgn1
RP/0/RP0/CPU0:router(config-cgn)#
Step 3 service-type nat44 nat1
Example:
RP/0/RP0/CPU0:router(config-cgn)# service-type nat44
nat1
Step 4 inside-vrf vrf-name
Example:
RP/0/RP0/CPU0:router(config-cgn-nat44)# inside-vrf
insidevrf1
RP/0/RP0/CPU0:router(config-cgn-invrf)#
Cisco IOS XR Carrier Grade NAT Configuration Guide for the Cisco CRS Router, Release 5.2.x
44
Implementing Carrier Grade NAT on Cisco IOS XR Software
Purpose
Purpose
Enters global configuration mode.
Configures the instance named cgn1 for the CGN
application and enters CGN configuration mode.
Configures the service type keyword definition for NAT44
application.
Configures the inside VRF for the CGN instance named
cgn1 and enters CGN inside VRF configuration mode.
OL-32659-01