The Net

this lab will cover route summarization, default gateway using network-default command, variance and EIGRP passive-interface concept R1 interface Loopback11  ip address 172.16.1.1 255.255.255.0 ! interface Loopback12  ip address 172.16.2.1 255.255.255.0 ! interface Loopback13  ip address 172.16.3.1 255.255.255.0 ! interface Loopback14  ip address 172.16.4.1 255.255.255.0 ! interface Loopback15  ip address 172.16.5.1 255.255.255.0 interface Serial0/0  ip address 30.30.12.1 255.255.255.252  clock rate 56000 interface Serial0/1  ip address 30.30.13.1 255.255.255.252  clock rate 56000 router eigrp 1  network 30.0.0.0  network 172.16.0.0  no auto-summary R2 interface FastEthernet0/0  ip address 30.30.23.1 255.255.255.0  duplex auto  speed auto ! interface Serial0/0  ip address 30.30.12.2 255.255.255.252  clock rate 2000000 router eigrp 1  network 30.0.0.0  no auto-summary R...

ip default-network ip route ip default-gateway this example we’ll use RIP, you can also use EIGRP but not OSPF prepare the network R1 interface FastEthernet0/0 ip address 10.1.1.1 255.255.255.0 duplex auto speed auto ! interface Serial0/0 ip address 192.168.1.1 255.255.255.0 clock rate 64000 ! interface Serial0/1 ip address 172.16.1.1 255.255.255.0 clock rate 64000 ! router rip network 172.16.0.0 network 192.168.1.0 R2 interface Serial0/0 ip address 192.168.1.2 255.255.255.0 ! router rip network 172.16.0.0 network 192.168.1.0 R3 interface Serial0/0 ip address 172.16.1.2 255.255.255.0 ! router rip network 172.16.0.0 make sure R1, R2 and R3 learn all the advertised interfaces and RIP working fine by pinging from one to other interfaces R1>sh ip rou R    99.0.0.0/8 [120/1] via 192.168.1.2, 00:00:16, Serial0/0 ...