Private/Public Address Configuration

[BrianSc]

Our small group uses a Cisco 1605R configured now with only our public IP range (216.54.xx.xx). I want to take all client workstations off the public range and asign private addresses (10.26.XX.XX). How can I configure the router to allow these clients to have access to the internet and communicate with the public range as well? The router configuration is :

!
service timestamps debug uptime
service timestamps log uptime
service password-encryption
no service tcp-small-servers
no service udp-small-servers
!
hostname XXXXXXXX
!
enable secret 5 $1$Snwh$9YWEOHTT9mbLnKbfAu7lu/
!
ip name-server 216.54.XX.XX
!
ip subnet-zero
ip domain-lookup
ip routing
!
interface Ethernet 0
no shutdown
description connected to EthernetLAN
ip address 216.54.XX.XX 255.255.255.128
no ip directed-broadcast
keepalive 10
!
interface Ethernet 1
no description
no ip address
shutdown
!
interface Serial 0
no shutdown
description connected to Internet
ip address 216.54.XX.XX 255.255.255.252
encapsulation hdlc
no fair-queue
!
router rip
version 2
network 216.54.XX.XX
passive-interface Serial 0
no auto-summary
!
!
ip classless
!
! IP Static Routes
ip route 0.0.0.0 0.0.0.0 Serial 0
no ip http server
snmp-server community AmSec007 RO
snmp-server community 4ms3c RW
no snmp-server location
no snmp-server contact
!
line console 0
exec-timeout 0 0
login
!
line vty 0 4
login

 

[hexn]

if you put your 10.x clients on one interface and then your 216.x clients and put them on a seperate interface, you will be able to communicate with each other with no problem, and no special configuration.

Then if you want your 10.x clients to surf the net, you are going to have to do nat with their subnet.