Summary
R1 acts as the Hub with a static public IP, while R2, R3 and R4 are spokes that obtain an IP from the “ISP”.
Versions / Image Releases
GNS3: 2.1.5
R1,R2,R3,R4: c7200-adventerprisek9-mz.152-4.S5
ISP_Cloud: c3725-adventerprisek9-mz.124-15.T14 (as EtherSwitch Router)
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R1:
hostname R1 interface FastEthernet0/0 ip address 172.16.0.1 255.255.255.252 no shutdown interface FastEthernet0/1 ip address 192.168.1.1 255.255.255.0 no shutdown ! ip dhcp pool R1_Clients network 192.168.1.0 255.255.255.0 default-router 192.168.1.1 ! interface Tunnel0 ip address 10.0.0.1 255.255.255.0 ip nhrp map multicast dynamic ip nhrp network-id 1 no ip split-horizon eigrp 90 no ip next-hop-self eigrp 90 tunnel source FastEthernet0/0 tunnel mode gre multipoint ! router eigrp 90 network 10.0.0.0 0.0.0.255 network 192.168.1.0 0.0.0.255 ip route 0.0.0.0 0.0.0.0 172.16.0.2
R2:
hostname R2 interface FastEthernet0/0 ip address dhcp no shutdown interface FastEthernet0/1 ip address 192.168.2.1 255.255.255.0 no shutdown ! ip dhcp pool R2_Clients network 192.168.2.0 255.255.255.0 default-router 192.168.2.1 ! interface Tunnel0 ip address 10.0.0.2 255.255.255.0 ip nhrp map 10.0.0.1 172.16.0.1 ip nhrp map multicast 172.16.0.1 ip nhrp network-id 1 ip nhrp nhs 10.0.0.1 tunnel source FastEthernet0/0 tunnel mode gre multipoint ! router eigrp 90 network 10.0.0.0 0.0.0.255 network 192.168.2.0 0.0.0.255 ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
R3:
hostname R3 interface FastEthernet0/0 ip address dhcp no shutdown interface FastEthernet0/1 ip address 192.168.3.1 255.255.255.0 no shutdown ! ip dhcp pool R2_Clients network 192.168.3.0 255.255.255.0 default-router 192.168.3.1 ! interface Tunnel0 ip address 10.0.0.3 255.255.255.0 ip nhrp map 10.0.0.1 172.16.0.1 ip nhrp map multicast 172.16.0.1 ip nhrp network-id 1 ip nhrp nhs 10.0.0.1 tunnel source FastEthernet0/0 tunnel mode gre multipoint ! router eigrp 90 network 10.0.0.0 0.0.0.255 network 192.168.3.0 0.0.0.255 ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
R4:
hostname R4 interface FastEthernet0/0 ip address dhcp no shutdown interface FastEthernet0/1 ip address 192.168.4.1 255.255.255.0 no shutdown ! ip dhcp pool R2_Clients network 192.168.4.0 255.255.255.0 default-router 192.168.4.1 ! interface Tunnel0 ip address 10.0.0.4 255.255.255.0 ip nhrp map 10.0.0.1 172.16.0.1 ip nhrp map multicast 172.16.0.1 ip nhrp network-id 1 ip nhrp nhs 10.0.0.1 tunnel source FastEthernet0/0 tunnel mode gre multipoint ! router eigrp 90 network 10.0.0.0 0.0.0.255 network 192.168.4.0 0.0.0.255 ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
ISP_Cloud:
vlan database vlan 2 vlan 3 vlan 4 exit ! conf t hostname ISP_Cloud interface FastEthernet1/0 no switchport ip address 172.16.0.2 255.255.255.252 ! interface vlan 2 ip address 22.0.0.1 255.0.0.0 no shutdown interface vlan 3 ip address 33.0.0.1 255.0.0.0 no shutdown interface vlan 4 ip address 44.0.0.1 255.0.0.0 no shutdown ! interface FastEthernet1/1 switchport mode access switchport access vlan 2 interface FastEthernet1/2 switchport mode access switchport access vlan 3 interface FastEthernet1/3 switchport mode access switchport access vlan 4 ! service dhcp ip dhcp pool R2_WAN network 22.0.0.0 255.0.0.0 default-router 22.0.0.1 ip dhcp pool R3_WAN network 33.0.0.0 255.0.0.0 default-router 33.0.0.1 ip dhcp pool R4_WAN network 44.0.0.0 255.0.0.0 default-router 44.0.0.1
Add to all devices to enable IPSEC:
!--- ADD TO ALL TO SECURE crypto isakmp policy 1 authentication pre-share crypto isakmp key P4ssw0rd address 0.0.0.0 ! crypto ipsec transform-set TransformSet1 esp-aes esp-sha-hmac ! crypto ipsec profile Profile1 set transform-set TransformSet1 ! interface Tunnel0 tunnel protection ipsec profile Profile1
Download:
[wpdm_package id=’1347′]