Essai sur le NAT/PAT

Petit schèma de principe :

Poste client 192.168.100.1 >> Routeur Cisco 2600 >> Internet 10.75.26.115

En statique :

ip nat inside source static 192.168.100.2 10.75.26.115

sur l'interface Ethernet 0/0 :

ip address 10.75.26.115 255.255.255.248

ip nat outside

sur l'interface Ethernet 0/1 :

ip address 192.168.100.1 255.255.255.0

ip nat inside

Kwa29_2600(config)#ip dhcp pool yo
Kwa29_2600(dhcp-config)#network 192.168.100.0 255.255.255.0
Kwa29_2600(dhcp-config)#default-router 192.168.100.1
Kwa29_2600(dhcp-config)#dns-server 192.168.100.1
Kwa29_2600(dhcp-config)#netbios-name-server 192.168.100.1
Kwa29_2600(dhcp-config)#domain-name kwa.com
Kwa29_2600(dhcp-config)#end

Kwa29_2600#show ip dhcp binding
Bindings from all pools not associated with VRF:
IP address          Client-ID/              Lease expiration        Type
                    Hardware address/
                    User name
192.168.100.2       0100.0cf1.cd94.52       Mar 02 1993 12:22 AM    Automatic

Mise en place du protocole PPP

Router(config)#int Serial 0/0
Router(config-if)#encapsulation ppp
Router(config-if)#compress predictor
Router(config-if)#ppp quality 80
Router(config-if)#ppp multilink

Merida(config)#username Vargas password cisco
Merida(config)#int Serial 0/0
Merida(config-if)#ppp authentication chap
00:04:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed stn
00:04:12: %OSPF-5-ADJCHG: Process 1, Nbr 172.16.100.1 on Serial0/0 from FULL

Et pareil sur le routeur voisin connecté en liaison série.

Mise en place du protocole  Frame Relay

Merida(config)#int Serial 0/1
Merida(config-if)#ip address 10.16.0.1 255.255.255.0
Merida(config-if)#encapsulation frame-relay
Merida(config-if)#bandwidth 64
Merida(config-if)#frame-relay map ip 10.16.0.2 110 broadcast

Merida#show frame-relay map
Serial0/1 (administratively down): ip 10.16.0.2
              dlci 110(0x6E,0x18E0), static,
              broadcast,
              CISCO, status defined, inactive

Merida(config)#snmp-server community public ro
Merida(config)#snmp-server community prive rw
Merida(config)#snmp-server location Hanvec
Merida(config)#snmp-server contact Kwa
Merida(config)#logging on
Merida(config)#service timestamps log datetime

R2(config)#int Ethernet 0/0
R2(config-if)#ip add 192.168.1.1 255.255.255.0
R2(config-if)#no shut
R3(config)#int Ethernet 0/0
R3(config-if)#ip add 192.168.1.1 255.255.255.0
R3(config-if)#no shut

R1(config)#frame-relay switching
R1(config)#int Serial 0/0                        
R1(config-if)#no ip add                                        
R1(config-if)#encapsulation frame-relay                                             
R1(config-if)#bandwidth 64       
R1(config-if)#clock rate 64000
R1(config-if)#no shut                                             
R1(config-if)#frame-relay intf-type dce
R1(config-if)#frame-relay route 302 int S0/1 203
R1(config)#int S0/1
R1(config-if)#no ip add
R1(config-if)#bandwidth 64
R1(config-if)#clock rate 64000
R1(config-if)#no shut
R1(config-if)#encapsulation frame-relay
R1(config-if)#frame-relay intf-type dce
R1(config-if)#frame-relay route 203 int S0/0 302

R2(config)#int S0/0
R2(config-if)#ip add 163.12.21.5 255.255.255.252
R2(config-if)#encapsulation frame-relay
R2(config-if)#bandwidth 64
R3(config)#int S0/0
R3(config-if)#ip add 163.12.21.6 255.255.255.252
R3(config-if)#encapsulation frame-relay
R3(config-if)#bandwidth 64

R1#show frame-relay route
Input Intf      Input Dlci      Output Intf     Output Dlci     Status
Serial0/0       302             Serial0/1       203             active
Serial0/1       203             Serial0/0       302             active

R3#show frame-relay map
Serial0/0 (up): ip 163.12.21.5 dlci 203(0xCB,0x30B0), dynamic,
              broadcast,, status defined, active