RouterA#show run
Building configuration...

Current configuration : 921 bytes
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version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
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hostname RouterA
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ip dhcp excluded-address 172.16.1.10 172.16.1.254
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ip dhcp pool DHCPPool
 network 172.16.1.0 255.255.255.252
 default-router 172.16.1.1
 dns-server 4.2.2.7
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interface Loopback0
 ip address 192.168.1.1 255.255.255.192
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interface Loopback1
 ip address 192.168.2.1 255.255.255.224
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interface FastEthernet0/0
 no ip address
 ip summary-address eigrp 20 172.16.1.8 255.255.255.248 5
 duplex auto
 speed auto
 shutdown
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interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
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interface Serial0/0
 ip address 172.16.1.1 255.255.255.252
 clock rate 64000
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router eigrp 20
 network 172.16.0.0
 network 192.168.1.0
 network 192.168.2.0
 no auto-summary
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ip classless
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line con 0
line vty 0 4
 login
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end