R1 172.17.0.1 255.255.255.255
R2 172.17.0.2 255.255.255.255
R3 172.17.0.3 255.255.255.255

R1: 2001:db8:0:172::1/128
R2: 2001:db8:0:172::2/128
R3: 2001:db8:0:172::3/128

R1 Fastethernet 0/0 192.168.100.1/30
R1 Fastethernet 0/1 192.168.100.10/30
R2 Fastethernet 0/0 192.168.100.2/30
R2 Fastethernet 0/1 192.168.100.5/30
R3 Fastethernet 0/0 192.168.100.9/30
R3 Fastethernet 0/1 192.168.100.6/30

R1 Fastethernet 0/0 2001:db8:0:1::1/64
R1 Fastethernet 0/1 2001:db8:0:3::2/64
R2 Fastethernet 0/0 2001:db8:0:1::2/64
R2 Fastethernet 0/1 2001:db8:0:2::1/64
R3 Fastethernet 0/0 2001:db8:0:3::1/64
R3 Fastethernet 0/1 2001:db8:0:2::2/64

The lab uses the Cisco 3725 routers. If you want to use other routers the configuration should work also. Please make sure you have the same interfaces in your simulated router.

The lab has three routers connected via the Fastethernet Interface FE0/0 and FE0/1. Each router has a loopback address configured. You can ping the three routers. The telnet password is "network", the enable secret is "routing".

Network File 3-Routers Fast Ethernet Cisco 3725

Configuration IPv4	R1 R2 R3
Configuration IPv4 - IPv6	R1 R2 R3
Configuration IPv6	R1 R2 R3
EIGRP IPv4	R1 R2 R3
EIGRP IPv6	R1 R2 R3
OSPFv2 IPv4	R1 R2 R3
OSPFv2 IPv4 two Areas	R1 R2 R3
OSPFv3 IPv6	R1 R2 R3
OSPFv3 IPv6 two Areas	R1 R2 R3
RIPv2 IPv4	R1 R2 R3
RIPng IPv6	R1 R2 R3